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Usually, alloy steel with a mass fraction of chromium greater than 12% (mass fraction) or a mass fraction of nickel greater than 8% is called stainless steel. Stainless steels are classified according to their metallographic structures, including martensitic stainless steel, ferritic stainless steel, austenitic stainless steel, austenitic + ferritic stainless steel and precipitation hardening stainless steel.

After the stainless steel is cut, the cutting surface and the machined surface are severely hardened, which can reach 1.4 to 2.2 times the hardness of the substrate, and the depth of the hardened layer is 0.1 mm, which brings difficulties to subsequent cutting; due to the high plasticity, toughness and tensile strength of stainless steel , the unit cutting force is 1.25 times that of cutting 45 steel; the thermal conductivity of stainless steel is 1/4~1/2 of that of 45 steel [50.2W/(m K)], so under the same cutting conditions, The cutting temperature is about 200 °C higher than that of cutting 45 steel; due to the plasticity, toughness, high cutting temperature and affinity of stainless steel with other metal elements, the tool-chip bonding and diffusion occur, and the tool is bonded and diffused. wear.

Also due to the serious hardening phenomenon when cnc machining stainless steel, it will increase the wear of the tool.

1. The tool material for turning stainless steel is required to have high heat resistance and wear resistance according to the above-mentioned cutting characteristics of stainless steel, and has a small affinity with stainless steel.
2. High speed steel. Ordinary high-speed steel (W18Cr4V) tools have low durability. W6Mo5Cr4V2Al and W12Cr4V4Mo high-performance high-speed steel should be used, which can double the durability of the tool.
3. Carbide. YG-type TaC or NbC fine-grained or ultra-fine-grained cemented carbides should be used, such as YG6X, YW4, YS2, YS8, YD15, 813, etc. If a coated blade is used, it is best to use TiAlSi coating, which can prevent adhesion and wear during the cutting process, and at the same time increase the surface hardness of the blade to 3600~4200HV.
4. Tool geometry parameters The rake angle of the stainless steel machining tool is γo=20°~30°, the clearance angle αo=8°~10°, the main declination angle κr=45°~75°, the secondary declination angle κr=8°~15 °, the edge inclination angle λS=-3°~0°, the radius of the tool nose arc rε=0.5~1mm. The form of broken (rolled) chip groove is full circular arc or straight circular arc, with groove width Bn=3~5mm, groove depth h=0.5~1.3mm, and broken (rolled) chip groove radius Rn=2~8mm.
5. Cutting amount Due to the cutting characteristics of stainless steel, the cutting speed is 40%~60% of that of cutting 45 steel, and the cutting depth ap and feed f should be greater than 0.1mm.
6. When the cutting fluid is rough turning, use emulsion or extreme pressure emulsion; when fine turning, use vulcanized oil (that is, mineral oil containing 2% sulfur).
7. Attention should be paid to turning stainless steel, especially austenitic stainless steel, should use a lower cutting speed (high-speed steel tool vc=18~20m/min; cemented carbide vc=40~60m/min) and a higher cutting speed than the hardened layer The depth of ap and f; when drilling with high-speed steel drills, the cutting edge of the drill should not stay on the cutting surface, so as not to aggravate the hardening of the cutting surface and bring difficulties to the next feeding; when reaming stainless steel holes, vulcanized oil should be used. Isobaric cutting fluid.

Steel pipe couplings, sockets serve to connect straight pipe to straight pipe often in low-pressure systems. They can be manufactured with many kinds of steel, such as carbon, galvanized, stainless, or black. As such, they can be found in a wide array of set-up for water, oil, gas, air, and more.

Many threaded pipes in use with these kinds of lines come with pipe couplings attached. These pipe couplings help to protect the threading on the pipe from exposure to the elements. When a couplings is not present on a threaded pipe, it must be welded after being threaded to the pipe. The steel used in pipe couplings is therefore specifically designed tube easier to weld than other couplings. Steel couplings are also absent of casting marks, steams, or bends, and so they have a smooth exterior.

At Sanvo Pipes & Fittings we pride ourselves on our superior quality and service. For customers with different manufacturing needs of steel pipe coupling/sockets, we provide carbon steel coupling, black pipe nipples, galvanized pipe nipples, stainless steel pipe nipples, seamless pipe nipples, brass pipe nipples, aluminum pipe nipples, carbon steel pipe sockets and stainless steel pipe couplings. Our pipe nipples and couplings are available in the following size: 1/8 ", 1/4 ", 3/8 ", 1/2 ", 3/4 ", 1 ", 1-1/4", 1-1/2 ", 2 ", 2-1/2 ", 3 ", 4 ", 5", 6 ". All of our steel pipe coupling/sockets are strictly produced by the the standards of DIN, BS, ISO, ANSI, API, and JIS, etc., with excellent quality and thoughtful service. Sanvo is your reliable supplier and trustworthy business partner in China.

If you have any questions about pipe nipples and couplings, we provide a variety of contact information so that you can easily contact us. Please email info@pipenipples.com, or call +86 0317 2021378, or use our simple online quotation form. Our professional team of steel pipe coupling/sockets will contact you as soon as possible.

Capillary refers to a tube with a very small inner diameter. In an industrial chiller system, a capillary refers to a copper tube within 1-2 mm. What is the role of the capillary in the chiller?

The metal capillary tube is one of the throttling devices of the chiller. The role of the capillary in the chiller is to throttle. The principle is simple, in order to increase the "flow resistance of the liquid flowing through the capillary". The ultimate goal is to control the amount of liquid supplied. However, while increasing the resistance to liquid flow and controlling the amount of liquid supplied, the capillary also has a depressurizing effect. When the high pressure refrigerant flows through the capillary, it changes from a high pressure liquid to a low-pressure high-temperature gas.

Specifically, the inner diameter and total length of the chiller throttling capillary and the nominal pressure difference between the inlet and outlet are all factors influencing the chiller throttling capillary. However, specific calculations require integrated cooling temperatures as well as evaporation temperatures, evaporation pressures, and the like. The evaporation pressure should be the same as the capillary outlet pressure.

By obtaining the pressure difference between the inlet and outlet, it is possible to obtain the values of the inner diameter and the length of the capillary, and then select the corresponding capillary. In most cases, this calculation does not have a fixed value, and the experimental values obtained by each chiller manufacturer may be different and complicated.

The capillary can adjust the amount of liquid supplied as well as throttling and depressurization. However, before the chiller leaves the factory, the length and inner diameter of the capillary should be determined and configured, rather than the customer's own calculation and installation, so the customer does not have to worry. However, when the first actual use and trial operation of the machine, it can also be slightly adjusted to meet the actual needs.

In addition, the stainless steel capillary tube is mainly used in a small chiller system with a small cooling capacity. The selected capillary has a small inner diameter and a long length, and the flow rate of the refrigerant flowing through the capillary is naturally small and the pressure is lower. The opposite is true. The value of the capillary inner diameter (diameter) and the length are determined according to the actual needs of the chiller.

Most of the chillers with large cooling capacity use expansion valves as throttling devices, and the expansion valves are installed between the refrigerant tank and the evaporator to throttle and reduce the pressure. The expansion valve allows the refrigerant that has been returned to the chiller system and has a relatively high temperature and relatively high pressure to become a low-temperature low-pressure refrigerant vapor through the expansion valve, and then enters the evaporator to absorb heat to achieve a cooling effect.

Product description

Hexagon steel tube is the general name of all section shape of steel tube except circular tube. There are welded shaped tubes and seamless shaped tubes. Due to different types of materials, hexagon steel tube generally use 304 material, because 200, 201 material strong in hardness making forming difficulty. Know more from this page: http://www.sstubecn.com/introduction-of-hexagonal-steel-tube.html.

Hex Tubing    Application Area

Hex tube steel is widely used in various structural parts, tools and mechanical parts. Compared with circular tube, hexagon steel tube generally has a larger moment of inertia and section modulus, has a larger bending and torsion resistance, can greatly reduce the weight of the structure, and save steel use. Hexagon steel tube can be used for oil, Chemical industry, Medical devices, aerospace, nuclear power, shipping, boilers, heat exchangers, condenser, water conservancy, electricity industry etc.

1. Hexagon stainless steel hex tubingfor heat exchanger: size from outer diameter 10-60mm, number of teeth can be arbitrarily selected according to user's requirements.
2. Small diameter special hexagon steel tube: such as outer circle inner hexagon, round outside but square inside, outer hexagon inner circle and so on. Specifications from the outer diameter of 8-60mm, the inner hole according to customer requirements.
3. Isofrequency shaped hexagon steel tube: The variety can be determined according to the user's requirements, and according to the user's requirements to produce non-standard welded pipe.
4. Inner spiral hexagon steel tube: Specifications from 10-60mm outside diameter according to customer requirements.
5. Small diameter thin wall hexagon steel tube: Specification from outside diameter 3mm, wall thickness from 0.5mm.

INTRODUCTION OF HEXAGONAL STEEL TUBE

Hexagonal steel tube is a kind of hexagonal (hexagonal) steel pipe which is made of steel. It is also called special-shaped steel pipe. Among them, there are octagonal, rhombic and elliptical tubes.

Hexagonal steel tube is the general name of steel pipe with other cross-section shapes besides circular pipe. It has welded special-shaped pipe and seamless special-shaped pipe. Because of the material relationship, stainless steel special-shaped pipe is generally more than 304 material, 200, 201 material hardness strong wind, it is more difficult to shape.

Hexagonal steel tube is widely used in various structural parts, tools and mechanical parts. Compared with circular pipe, stainless steel special-shaped pipe generally has larger inertia moment and section modulus, has greater flexural and torsional resistance, can greatly reduce the weight of the structure and save steel.

Hexagonal steel tubes are generally distinguished according to the broken section and the overall shape. They can be generally divided into elliptical, triangular, hexagonal and special-shaped pipes. Diamond shaped pipe, stainless steel pattern pipe, stainless steel U-shaped pipe, D-shaped pipe, stainless steel elbow, S-shaped pipe elbow, octagonal shaped pipe, semi-circular shaped steel circle. Hexagonal shaped steel pipe with unequal edges, plum blossom shaped steel pipe with five petals, double convex shaped steel pipe, double concave shaped steel, melon seed shaped steel pipe, conical shaped steel pipe, corrugated shaped steel pipe, etc.

CLASSIFICATION OF SPECIAL-SHAPED PIPE AND HEXAGON STEEL TUBING

Hexagonal steel is a kind of section steel, also known as hexagonal bar, bar with regular hexagonal section. The nominal size is the opposite side length S. Hexagonal steel can be used to form various stress components according to the different needs of the structure, and it can also be used as a connection between components. It is widely used in various building structures and engineering structures, such as beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks and warehouse shelves.

Special-shaped pipes are generally distinguished according to the broken section and overall shape. They can be generally divided into elliptical special-shaped pipes, triangular special-shaped pipes, hexagonal special-shaped pipes and so on. Diamond shaped pipe, stainless steel pattern pipe, stainless steel U-shaped pipe, D-shaped pipe, stainless steel elbow, S-shaped pipe elbow, octagonal shaped pipe, semi-circular shaped steel circle. Hexagonal shaped steel pipe with unequal edges, plum blossom shaped steel pipe with five petals, double convex shaped steel pipe, double concave shaped steel, melon seed shaped steel pipe, conical shaped steel pipe, corrugated shaped steel pipe, etc.

Classification of hexagon steel tubing:

Classification of material used for hexagonal steel pipes: 20, 45, 16 manganese and other different materials have different uses.

Hexagon steel tubing is an outer hexagonal steel pipe. It is a kind of special-shaped steel pipe. It is mostly used in the processing of nuts and mechanical fittings. Hollow hexagonal bar is the general name of the steel pipe with outer hexagonal section and inner circular section. It has welded and seamless special-shaped pipe. Because of the material relationship, can be divided into ordinary carbon steel heterosexual steel pipe, hexagon steel tube.

Product description

Bright Annealed Tubes Description

Bright annealed stainless steel tube is a kind of high precision steel tube material after finishing or cold rolling. Due to the advantages of no oxide layer both inside and outside wall, no leakage under high pressure, high precision, high finish degree, no deformation and flaring, no cracks flattening, precision bright annealed tube is mainly used to produce pneumatic or hydraulic components, such as air cylinder or gas cylinder. It can be seamless tube, and also welded pipe. The chemical components of precision bright annealed tube are C, Si, Mn, S, P, Cr.

bright annealed tube can be used for industries like automobile, and mechanical parts which have higher requirements for steel pipe precision and surface finish. Bright annealed stainless steel tubes are not only for higher precision and finish requirements, its tolerance can be maintained in 0.02-0.08mm, so many mechanical processing users gradually replace seamless steel tube or round steel with precision bright annealed tube in order to save labor, material, and time.

The traditional bright annealing furnace for stainless steel tubes is performed in a so referred to as open furnace, where the atmospheric oxygen reasons scaling of the heat treated materials, which makes the surface rough. HUASHANG STEEL has developed a one of a kind bright annealing process, the heat treatment is carried out in a so-called closed furnace. The warmth handled materials is covered by means of an inter-fuel atmosphere, which ensures the oxygen cant enter the furnace or come in to contact with the substances and react to shape scale on or tarnish the materials. The surface end is clean, bright and precision, which is a top-notch beginning point for a similar system, like electro-polishing and mechanical polishing.

Especially for the tube with size greater than 12 meters, the ordinary pickling tube is very hard to clean the internal surface, however, with the bright annealing of stainless steel method, our tubing is much cleaner, smoother on both inner and outer surface. We use bright annealing method, the temperature of the furnace can reach greater than 1350℃, and the tolerance for the putting and real temperature can be controlled Within ±2℃, which is not possible for the regular annealing.

To ensure the quality, all tubes are done 100% PMI, 100% Hydraulic test, 100% inner cleaned by sponge,100% dimension test, and 100% surface test. What is more, our quality of precision drawn tubing is same to precision rolling but has more advantage on price?  We are using the advanced cold drawn technology from Japan and Korean, making the close dimension controls. Huashang steel tubing used for instrument tubing, chromatography tubing, hydraulic tubing, high-pressure tubing, cleaned tubing, multi-core tubing.

Type Of Tube: Welded tubing and Seamless Tubing

Straight Tubes Bright Annealing Advantages

1. Superior Surface Finish
2. Better Mechanical Property
3. More Precise Dimension

FACTORS AFFECTING BRIGHT ANNEALING OF STAINLESS STEEL TUBES

Stainless steel tube is now widely used in the market, it has a very important role in many industries. To reduce hardness and improve plasticity; to refine the grain and eliminate the internal stress, annealing must be carried out. Stainless steel tube annealing is generally carried out by continuous bright annealing furnace with ammonia decomposition protection gas for annealing of intermediate state and finished products. It can protect the bright outer surface of the stainless steel tube very well. The finished tube after annealing is also bright. This kind of tube does not need pickling.

There are many influence factors of bright annealed stainless steel tubing, this article lists five important factors for your reference.

1. Whether the annealing temperature reaches the specified temperature

The heat treatment of stainless steel is usually solid solution heat treatment, that is what people usually called annealing, the temperature range of 1040~1120 (Japanese standard).  You can also look through the observation hole of the annealing furnace, the stainless steel tube in the annealing surface should be in incandescent state, but no softening droop appears.

2. Annealing atmosphere

Pure hydrogen is regarded as anneal atmosphere commonly, atmosphere purity had better be 99.99% above, if another part in atmosphere is inert gas, purity also can a bit lower, but it  absolutely cannot contain excessive oxygen water vapor.

3. Bright annealing furnace should be closed and isolated from the outside air; using hydrogen as a shielding gas, only one vent is vented (used to ignite the exhausted hydrogen). It can be checked by wiping in the annealing furnace with soap water in the joint gap to see whether the air run, one of the most likely places for gas to escape is where the annealing furnace enters the pipe and where the pipe comes out. The sealing ring in this place is particularly prone to wear and tear, so it should be checked and changed frequently.

4. Protect gas pressure

In order to prevent micro-leakage, the protective gas in the furnace should maintain a certain positive pressure, if it is hydrogen protective gas, the general requirements of more than 20kBar.

5. On the one hand, check whether the furnace material is dry, furnace material must be dried for the first furnace charging, Secondly, whether the stainless steel tube into the furnace remains too much water, especially if there are holes in the pipe, do not leak into it, or it will destroy the atmosphere of the stove.

That's basically what you need to pay attention to. Usually, after the furnace should be back about 20 meters of stainless steel tube will start to shine. Huashang Steel has stock for bright annealed stainless steel tube, welcome to inquiry and order.

THE TECHNOLOGY EXPLAINATION OF BRIGHT ANNEALED STAINLESS STEEL TUBING

Bright annealing equipment is a special equipment which is used to heat the stainless steel tube online to 1050 and then to cool it below 100 rapidly under the protection of hydrogen. The induction heating coil and cooling system are built into the sealed tube. The main feature of the system is the use of non-reusing hydrogen, with a very small flow rate, and only a few liters of pure hydrogen per minute. The gas used is pure hydrogen, which is not dangerous because of its small amount in the gas pipeline. At the same time, the exhaust gas discharged is burned, which can prevent the hydrogen from diffusing into the surrounding air and thus avoid the accumulation of dangerous concentration in the surrounding space. The heated stainless steel tube is cooled by heat conduction in a special closed cooling tunnel. These characteristics are the reasons why this system only needs a small amount of gas for bright annealing compared with other systems. Gas control system and equipment protection are automatically controlled by PLC. So ensure the high reliability and safety of equipment if power supply using the latest IGBT inverter power supply, its output frequency can be applied to all pipe diameters. This is how bright annealed stainless steel tubing works.

Stainless Steel Tubing Materials

For different applications, we offer sevsral materials such as austenitic stainless steel, duplex & super duplex steel, nickel alloly steel etc. And these tubes consist of seamless tubing & welded tubing. Welded stainless steel tubing can be bent and cut to required shape and length. It is telescopic with adjacent sizes, and ideal for use in day-to-day pipe work, as well as for bushings, spacers, guide tubes, standoffs, and bearings.

304 Stainless Steel Is the most versatile and extensively used of stainless metal grades, due to its combination of corrosion resistance, formability, and ductility. 316 Stainless Steel provides the first-class resistance to pitting and corrosion of any of the austenitic (300 series) stainless steels. It is extremely ductile, with remarkable electricity at improved temperatures. Seamless tubing can be produced with heavier wall thicknesses for mechanical applications. It is best for hydraulic and instrumentation tubing in chemical, textile, and pulp and paper industries, and in marine environments.

Stainless Steel Tubing Sizes

Most sizes of ss tube can be cut to actual sizes. Non wellknown sizes can be made to order. Contact a sales associate nowadays for your specific stainless steel tubing requirement. 

OD 0.19mm--44.5mm

T.W: 0.08mm--3.81mm

FUTURE AND PROMOTION OF STAINLESS STEEL TUBE

Stainless steel is recognized as a kind of health material that can be implanted into human body. It has been used successfully for many years in developed countries to produce water pipes. It has become the world trend and development direction. Stainless steel pipes are called "the real green pipes of the 21st century".

Thin-walled stainless steel pipes, which began to be produced and used in China in the late 1990s, are a new generation emerging in the field of pipe materials, and have been widely used in building water supply and direct drinking water pipelines.

The durability of thin-walled stainless steel pipes has been recognized by engineering circles, and related parties are starting from reducing wall thickness and price in order to facilitate further promotion. Especially, the small bore stainless steel tube is not high, so the matching connection method, the reliability and price of pipe fittings are the main factors determining its development. Developers have independently developed connection technology and pipe fittings all over the country, which is a promising pipe material. The Ministry of Construction and relevant departments also attach great importance to this new type of pipe. The popularization and application of thin-walled stainless steel pipe technology and products are of great significance for improving the grade of modern Chinese architecture and ensuring the quality of water supply.

Stainless steel pipe will not cause environmental pollution. It is environmentally friendly. It is conducive to sustainable development. And stainless steel scrap also has great economic value. Stainless steel materials are safe, non-toxic, non-corrosive and exudates, no odor or turbidity problems, and will not cause secondary pollution to water quality, maintain the purity and hygiene of water quality, and ensure the safety of health. It is helpful to improve the grade of urban buildings. It can be used either in open or in concealment, or in burial.

APPLICATION PROSPECT OF STAINLESS STEEL TUBING

Stainless steel pipes are safe, reliable, hygienic, environmentally friendly, economical and applicable. The successful development of thin-walled pipes and new reliable, simple and convenient connection methods makes them have more irreplaceable advantages than other pipes. Its application in engineering will be more and more extensive, and its application will be more and more popular, and its prospect is promising.

With the implementation of China's reform and opening-up policy, the national economy has been growing rapidly, and a large number of urban residential buildings, public buildings and tourist facilities have been built, which puts forward new requirements for hot water supply and domestic water supply. Especially the problem of water quality, people pay more and more attention to it, and the requirements are constantly improved. Stainless steel tubing manufacturers have seized this requirement and made stainless steel to solve the problem of improving water quality.

Galvanized steel pipe, a common pipe material, will gradually withdraw from the historical stage under the influence of relevant national policies because of its corrosion resistance. Plastic pipes, composite pipes and copper pipes are commonly used in pipeline systems. But in many cases, stainless steel pipes have more advantages, especially thin-walled stainless steel pipes whose wall thickness is only 0.6-1.2 mm. In high-quality drinking water system, hot water system and water supply system, safety and hygiene are the first priority. It has the characteristics of safety, reliability, sanitation, environmental protection, economy and applicability. It has been proved by engineering practice at home and abroad that it is one of the pipes with the best comprehensive performance, new type, energy saving and environmental protection. It is also a very competitive water supply pipe material. It will play an incomparable role in improving water quality and people's living standards.

Product description

WELDING NECK RISE FACE FLANGE（WNRF）

Stainless steel weld neck flange is popularly used in excessive stress applications, with their capability to provide assisting power along with stress distribution. Weld neck flanges are circumferentially welded at the neck where the integrity of the butt welded location can be without problems examined by means of radiography. The bores of both pipe and flange match, which reduces turbulence and erosion inner the pipeline. The weld neck is consequently durable in fundamental applications.

Welding Neck Raise Face Flange Feature

Corrosion resistance

Pressure resistance

Tension resistance

Long service life and easy installation

Welding Neck Raise Face Flange （Wnrf）Forming:

Forged

WHAT'S THE DIFFERENCE AMONG WELD NECK FLANGES, SOCKET WELD FLANGES, SLIP ON FLANGES?

Weld neck flanges, slip on flanges, socket weld flanges have different production standards, different applicable occasions. In addition, weld neck flange is the interface end pipe diameter and wall thickness is the same as the pipe to be welded.

Slip on flange is the joint being processed to a concave table a little larger than the pipe outside diameter, pipe inserted in the inside for welding. Weld neck flange has better welding performance and less corrosion.

Slip on flanges are generally used for low and medium pressure pipelines, weld neck flanges are used for connection of middle and high pressure pipelines, generally at least pn2.5mpa. Weld neck flanges are used to reduce stress concentration.

Features of various forged flanges:

Socket welding flange is suitable for connecting pipe with small diameter, high pressure and high temperature.

Slip on flange is the same with weld neck flange, has a groove cut in the lug and the pipe inserted into it for welding.

Socket weld flange has no boss, directly cut a groove in the flange body, just like a hole in the blind flange, and then cut a groove.

Slip on flange is slightly better than socket weld flange in performance.

1. Summary of stainless steel hex tubing

stainless steel hex tubing is a solid long strip of stainless steel with hexagonal cross section. Because of the characteristics of stainless steel hexagonal pipe, it is widely used in ocean, chemical industry, architecture, and other fields.

Stainless steel hexagonal tube can be finished steel, can also be used as blank for welded pipe and thin slab for laminated sheet rolling.

2. Main uses

stainless steel hex tubing can be used as finished materials for hoop iron, tools, and mechanical parts, and for building structures and escalators.

For stainless steel hexagonal tubes, the lower the surface roughness, the smoother the surface, the more difficult the foreign body to attach, and the lower the probability of local corrosion. Therefore, the stainless steel hexagonal tube should adopt the finishing surface as far as possible.

Surface cleanliness of stainless steel hexagonal tubes is very important, and the final cleaning after passivation should be carefully carried out, because residual acid promotes cathodic reaction and causes film rupture, thus activating stainless steel hexagonal tubes and drastically reducing corrosion resistance. Use environmental media.

The passivation film of stainless steel hexagonal tube belongs to the thermodynamically restrained metastable structure. Its protection efficiency is related to the environmental medium. It should be cleaned regularly to remove harmful substances from the surface for a long time.

stainless steel hex tubing mainly processes stainless steel bolts and nuts, various stainless steel industrial parts. Hexagonal steel pipe is mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, and is one of the 20 key products developed in China. For liquid transportation: water supply, drainage, sewage treatment engineering, mud transportation, marine water transportation. For gas transportation: gas, steam, liquefied petroleum gas. Structural function: Pile driving pipe, bridge, wharf, road, building structure pipe, ocean pile driving pipe, etc.

Product description

Stainless Steel Capillary Tube Description:

Whether you need to exchange device tubing as a section of your troubleshooting or want to minimize the dwell extent of your system as you pass to narrower columns, WENZHOU HUASHANG STEEL CO., LTD. has the first-rate tubing in the lengths. Tubing is precision cut, resulting in clean, square-cut ends besides ovality. This capillary tube also features lean and easy floor finish.

Medical grade capillary tubing from WENZHOU HUASHANG STEEL CO., LTD. owns the following features as good flexibility, corrosion resistance, high-temperature resistance, tensile strength, water resistance, etc. For the capillary tube, the minimum size is up to 0.19mm and minimum thickness is 0.02mm, and our tolerance is very small. All brightly annealed technique makes a clean inner surface. High finish, no oil or grease particles ensure the optimal and uniform flow of liquids and gases from the sensor to the measuring instrument.

The ss capillary tube has good corrosion resistance, high-temperature resistance, anti-wear, anti-pilling and good flexibility and other functions. It can also shield electromagnetic properties and be bent freely to form a wide variety of bending angles. The stainless steel capillary tube can be kept from deforming regardless of the rotation to each angle, bring convenient for our daily life.

Stainless steel capillary tube produces a radiation-resistant alloy steel in the air. Because of its aesthetically pleasing surface and good corrosion properties, the stainless steel capillary tube doesn't require color plating. In order to ensure the corrosion resistance of the stainless steel capillary, it is necessary to select a steel containing more than 12% chromium when selecting the steel.

The capillary tube is applied to many industries such as chemical, petroleum, electronics, medical, aerospace, air conditioning, medical equipment, pharmaceutical, boiler, and other fields. Also, there are a lot of products like injection needle tube, puncture needle tube, beauty needle tube, temperature sensor tube, thermometer tube, thermostat tube, etc.

Stainless Steel Capillary Tubes Material:

Austenitic Stainless Steel:

TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H, TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo.S30432, S31042, N08367

Duplex & Super Duplex Steel:

S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel: N06600, N06601, N06625, N0771, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

304 Stainless Steel Material Features:

1. silver gloss on the stainless steel surface
2. No toxic & non-polluting substances, environmentally friendly,
3. Mixed nickel and chrome combination, acid-resistant and alkali-resistant
4. Durable and not easily damaged
5. Strong anti-oxidation ability in a humid environment
6. hardness is 2 times higher than copper

Length: Cut to Length

Stainless Steel Capillary Tubes Sizes & Tolerance

Chemical Composition of Nickel Alloy, Duplex steel & Austenitic Steel

Grade C Si Mn P S Cr Ni Mo Ti N With Fe To the What Zr Nb Tu will

Max Max Max Max Max Max Max Max Max Max

Nickel Alloy

Inconel 600/No6600/2.4816 0.15 0.5 1 0.015 14-17 ≧72 0.5 6.0-10.0

Inconel 600/No6601/2.4851 0.1 0.5 1.5 0.015 21-25 58-63 1 1.0-1.7

Inconel 690/No6690 0.05 0.5 0.5 0.015 27-31 58 0.5 7.0-11.0

Inconel 625/No6625/2.4856 0.1 0.5 0.5 0.015 0.015 20-23 ≧58 8.0-10.0 ≦0.4 5 ≦0.4 3.15-4.15

Inconel 718/No7718/2.4668 0.08 0.35 0.35 0.015 0.015 17-21 50-55 2.8-3.3 0.65-1.15 0.006 0.3 Remainder 0.2-0.8 4.75-5.5

Incoloy 800/No8800/1.4876 0.1 1 1.5 0.015 19-23 30-35 0.15-0.6 0.75 ≧39.5 0.15-0.6

Incoloy 800H/No8810/1.4958 0.05-0.1 1 1.5 0.015 19-23 30-35 0.6-1.2 0.75 ≧39.5 0.15-0.6 1

Incoloy 825/No8825/2.4858 0.05 0.5 1 0.03 19.5-23.5 38-46 2.5-3.5 1.5-3 ≧22 0.2

C-276/No10276/2.4819 0.01 0.08 1 0.04 0.03 14.5-16.5 Balance 15.0-17.0 4.0-7.0 2.5 3-4.5 0.35

Monel 400/No4400/2.4360 0.3 0.5 2 0.024 ≧63 28-34 2.5

Monel K-500/No5500 0.18 0.5 1.5 0.01 63 0.35-0.85 27-33 2 2.3-3.15

Alloy 20/No8020/2.4660 0.07 1 2 0.045 0.035 19-21 32-38 2.0-3.0 3.0-4.0 Balance 8C-1

Alloy 28/No8028 0.03 1 2.5 0.03 0.03 26-28 30-34 3.0-4.0 0.6-1.4 Remainder

Duplex Steel

S31803 / 1.4462 0.03 1 2 0.03 0.02 21-23 4.5-6.5 2.5-3.5 0.08-0.2

S32205/1.4462 0.03 1 2 0.03 0.02 22-23 4.5-6.5 3.0-3.5 0.14-0.2

S32750/1.4410 0.03 0.8 1.2 0.035 0.02 24-26 6.0-8.0 3.0-3.5 0.24-0.32 0.5

S32760 / 1.4501 0.05 1 1 0.03 0.01 24-26 6.0-8.0 3.0-4.0 0.2-0.3 0.5-1.0

Austenitic

304/1.4301 0.08 1 2 0.045 0.03 18-20 8-10.5

304L / 1.4307 0.035 1 2 0.045 0.03 18-20 8.0-12.0

304H / 1.4948 0.04-0.1 1 2 0.045 0.03 18-20 8.0-11.0

316/1.4401 0.08 1 2 0.045 0.03 16-18 11.0-14.0 2.0-3.0

316L / 1.4404 0.035 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0

316H / 1.4919 0.04-0.1 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0 0.1

316Ti / 1.4571 0.08 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0 0.7>5x(C+N)

321/1.4541 0.08 1 2 0.045 0.03 17-19 9.0-12.0 0.7>5x(C+N)

321H / 1.4878 0.04-0.1 1 2 0.045 0.03 17-19 9.0-12.0 H

317/1.4449 0.08 1 2 0.045 0.03 18-20 11.0-14.0 3.0-4.0

317L / 1.4438 0.035 1 2 0.045 0.03 18-20 11.0-15.0 3.0-4.0

347/1.4550 0.08 1 2 0.045 0.03 17-19 9.0-12.0

347H / 1.4912 0.04-0.1 1 2 0.045 0.03 17-19 9.0-13.0

310S/1.4845 0.08 1 2 0.045 0.03 24-26 19.0-22.0 0.11

310H / 1.4845 0.04-0.1 1 2 0.045 0.03 24-26 19.0-22.0

N08904(904L)/1.4539 0.02 1 2 0.045 0.03 19-23 23.0-28.0 4.0-5.0 0.1 1.0-2.0

S31254 (254Mo) /1.4547 0.02 0.8 1 0.03 0.01 19.5-20.5 17.5-18.5 6.0-6.5 0.18-0.22 0.5-1.0

Product description

Medical grade stainless steel tubing Description

Stainless steel medical tubes available as thin wall tubes in seamless or welded redrawn condition or as seamless thick wall tubes. Medical tubes are available in a range of stainless steels and delivered with cold drawn, ground, extremely polished or bright surface, relying on size and wall thickness.

Huashang stainless steel medical tube is well-known for its flexibility, rotproofness, high-temperature resistance, tensile stress, and waterproofness. Medical tubing is characterized by tight tolerances, the minimum OD can be tailored into 0.19mm, with wall thickness at 0.02mm.

In order to optimize the uniform flow between liquid and gas from the sensor to measuring instrument, we use the bright annealing technique to make sure the internal and external surface smooth and highly polished, without leaving any oil or grease particles. HUASHANG capillary tube applies to medical treatment and facility such as tubes for injection, puncture, cosmetology

Medical Tubing Testing

We can provide the following types of testing for medical tubes:

Eddy current test (on request)

Flaring test

Flattening test

Mechanical test

Microstructure test

Ultrasonic test (on request)

Medical Tubing Size Range

Length: Cut to Length

OD: 0.19mm--10.0mm

W.T: 0.02mm--1.0mm

Medical Tubing Materials

Austenitic Stainless Steel:

TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H,TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo.S30432, S31042, N08367

Duplex & Super Duplex Steel:

S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel:

N06600, N06601, N06625, N07718, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

Product description

Bright Annealed Tubes Description

The traditional annealing approach is performed in a so referred to as open furnace, where the atmospheric oxygen reasons scaling of the heat treated materials, which makes the surface rough. HUASHANG STEEL has developed a one of a kind bright annealing process, the heat treatment is carried out in a so-called clsoed furnace. The warmth handled materials is covered by means of an inter-fuel atmosphere, which ensures the oxygen cant enter the furance or come in to contact with the substances and react to shape scale on or tarnish the materials. The surfaceend is clean, bright and precision, which is a top-notch beginning point for similarly system, like electro-polishing and mechanical polishing.

Especially for the tube with size greater than 12 meters, the ordinary pickling tube is very hard to clean the internal surface, however, with the bright annealing method,  our tubing is much cleaner, smoother on both inner and outer surface. We use bright annealing method, the temperature of furnace can reach greater than 1350℃, and the tolerance for the putting and real temperature can be controlled Within ±2℃, which is not possible for the regular annealing To ensure the quality, all tubes are done 100% PMI, 100% Hydraulic test, 100% inner cleaned by sponge, 100% dimension test, and 100% surface test.

What is more, our quality of precision drawn tubing is same to precision rolling but has more advantage on price?  We are using the advanced cold drawn technology from Japan and Korean, making the close dimension controls Huashang steel tubing used for instrument tubing, chromatography tubing, hydraulic tubing, high-pressure tubing, cleaned tubing, multi-core tubing. Type of tubes is welded tubing and seamless tubing.

Straight Tubes Bright Annealed Tube Advantages

1. Superior Surface Finish
2. Better Mechanical Property
3. More Precise Dimension

Bright annealed stainless steel tubing Sizes

welded tubing size range

OD: 0.19mm--44.5mm, T.W: 0.08mm--3.81mm

Length: CUT TO LENGTH

The seamless straight tubing & bright annealed tubing sizes:

Bright Annealed Tubes Materials

Austenitic Stainless Steel:

TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H,TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo. S30432, S31042, N08367

Duplex & Super Duplex Steel: S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel:

N06600, N06601, N06625, N07718, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

Bright Annealed Tubes Standard

ASTM A789, ASME SA789, EN10216-5, ASTM B163, ASTM B167, ASME SB163, ASME SB167, ASTM B668, ASME SB668, ASTM A269, ASME SB677, ASTM A213, ASME SA213, ASME SA269, ASMT A270, ASTM B622, ASTM B516

Heat Treatment: Bright Annealed

NDT: Eddy Current or Hydraulic test or UT

Chemical Composition of Nickel Alloy, Duplex steel & Austenitic Stee

Grade C Si Mn P S Cr Ni Mo Ti N With Fe To the What Zr Nb Tu will

Max Max Max Max Max Max Max Max Max Max

Nickel Alloy

Inconel 600/No6600/2.4816 0.15 0.5 1 0.015 14-17 ≧72 0.5 6.0-10.0

Inconel 600/No6601/2.4851 0.1 0.5 1.5 0.015 21-25 58-63 1 1.0-1.7

Inconel 690/No6690 0.05 0.5 0.5 0.015 27-31 58 0.5 7.0-11.0

Inconel 625/No6625/2.4856 0.1 0.5 0.5 0.015 0.015 20-23 ≧58 8.0-10.0 ≦0.4 5 ≦0.4 3.15-4.15

Inconel 718/No7718/2.4668 0.08 0.35 0.35 0.015 0.015 17-21 50-55 2.8-3.3 0.65-1.15 0.006 0.3 Remainder 0.2-0.8 4.75-5.5

Incoloy 800/No8800/1.4876 0.1 1 1.5 0.015 19-23 30-35 0.15-0.6 0.75 ≧39.5 0.15-0.6

Incoloy 800H/No8810/1.4958 0.05-0.1 1 1.5 0.015 19-23 30-35 0.6-1.2 0.75 ≧39.5 0.15-0.6 1

Incoloy 825/No8825/2.4858 0.05 0.5 1 0.03 19.5-23.5 38-46 2.5-3.5 1.5-3 ≧22 0.2

C-276/No10276/2.4819 0.01 0.08 1 0.04 0.03 14.5-16.5 Balance 15.0-17.0 4.0-7.0 2.5 3-4.5 0.35

Monel 400/No4400/2.4360 0.3 0.5 2 0.024 ≧63 28-34 2.5

Monel K-500/No5500 0.18 0.5 1.5 0.01 63 0.35-0.85 27-33 2 2.3-3.15

Alloy 20/No8020/2.4660 0.07 1 2 0.045 0.035 19-21 32-38 2.0-3.0 3.0-4.0 Balance 8C-1

Alloy 28/No8028 0.03 1 2.5 0.03 0.03 26-28 30-34 3.0-4.0 0.6-1.4 Remainder

Duplex Steel

S31803 / 1.4462 0.03 1 2 0.03 0.02 21-23 4.5-6.5 2.5-3.5 0.08-0.2

S32205/1.4462 0.03 1 2 0.03 0.02 22-23 4.5-6.5 3.0-3.5 0.14-0.2

S32750/1.4410 0.03 0.8 1.2 0.035 0.02 24-26 6.0-8.0 3.0-3.5 0.24-0.32 0.5

S32760 / 1.4501 0.05 1 1 0.03 0.01 24-26 6.0-8.0 3.0-4.0 0.2-0.3 0.5-1.0

Austenitic

304/1.4301 0.08 1 2 0.045 0.03 18-20 8-10.5

304L / 1.4307 0.035 1 2 0.045 0.03 18-20 8.0-12.0

304H / 1.4948 0.04-0.1 1 2 0.045 0.03 18-20 8.0-11.0

316/1.4401 0.08 1 2 0.045 0.03 16-18 11.0-14.0 2.0-3.0

316L / 1.4404 0.035 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0

316H / 1.4919 0.04-0.1 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0 0.1

316Ti / 1.4571 0.08 1 2 0.045 0.03 16-18 10.0-14.0 2.0-3.0 0.7>5x(C+N)

321/1.4541 0.08 1 2 0.045 0.03 17-19 9.0-12.0 0.7>5x(C+N)

321H / 1.4878 0.04-0.1 1 2 0.045 0.03 17-19 9.0-12.0 H

317/1.4449 0.08 1 2 0.045 0.03 18-20 11.0-14.0 3.0-4.0

317L / 1.4438 0.035 1 2 0.045 0.03 18-20 11.0-15.0 3.0-4.0

347/1.4550 0.08 1 2 0.045 0.03 17-19 9.0-12.0

347H / 1.4912 0.04-0.1 1 2 0.045 0.03 17-19 9.0-13.0

310S/1.4845 0.08 1 2 0.045 0.03 24-26 19.0-22.0 0.11

310H / 1.4845 0.04-0.1 1 2 0.045 0.03 24-26 19.0-22.0

N08904(904L)/1.4539 0.02 1 2 0.045 0.03 19-23 23.0-28.0 4.0-5.0 0.1 1.0-2.0

S31254 (254Mo) /1.4547 0.02 0.8 1 0.03 0.01 19.5-20.5 17.5-18.5 6.0-6.5 0.18-0.22 0.5-1.0

As a large ss tube manufacturer, we offer various tubing to meet different application requirements like ba tubing, ep tubing, mp tubing, stainless steel instrument tubing, heat exchange tubes, boiler tubes, aerospace tubing, medical tubing, hydraulic tubing, stainless steel capillary tubes, precision tubes, bright annealed tubes, special shape tubes, coiled tubing, hex tubing. Stainless steel tubing provides good corrosion resistance, weldability, machinability, and can be easily cleaned and sterilized. HUASHANG uses the most advanced technology-the floating plug drawing technology, and the most environmentally friendly process-Bright annealed Process to make quality tubing.

Stainless Steel Tubing Materials

For different applications, we offer sevsral materials such as austenitic stainless steel, duplex & super duplex steel, nickel alloly steel etc. And these tubes consist of seamless tubing & welded tubing. Welded stainless steel tube steel can be bent and cut to required shape and length. It is telescopic with adjacent sizes, and ideal for use in day-to-day pipe work, as well as for bushings, spacers, guide tubes, standoffs, and bearings.

304 Stainless Steel Is the most versatile and extensively used of stainless metal grades, due to its combination of corrosion resistance, formability, and ductility. 316 Stainless Steel provides the first-class resistance to pitting and corrosion of any of the austenitic (300 series) stainless steels. It is extremely ductile, with remarkable electricity at improved temperatures. Seamless tubing can be produced with heavier wall thicknesses for mechanical applications. It is best for hydraulic and instrumentation tubing in chemical, textile, and pulp and paper industries, and in marine environments.

Austenitic Stainless Steel:

TP304, TP304L, TP304H, TP304LN, TP316/TP316L, TP316H, TP316Ti, TP316LN, TP321, TP321H, TP317, TP317L, TP347, TP347H, TP310S, TP310H, TP904L, 254Mo.S30432, S31042, N08367

Duplex & Super Duplex Steel:

S31500, S32101, S32003, S32304, S31803, S32205, S32750, S32760

Nickel Alloy Steel:

N06600, N06601, N06625, N07718, N08800, N08825, N10276, N04400, N05500, N02200, N02201, N08028, N08810, N08811, N08020, N10624, N10629, N10675

Stainless Steel Tubing Sizes

Most sizes of stainless steel tubes can be cut to actual sizes. Non wellknown sizes can be made to order. Contact a sales associate nowadays for your specific stainless steel tubing requirement.

OD 0.19mm--44.5mm

T.W: 0.08mm--3.81mm

Product description

Socket weld flanges are counter-bored to receive the pipe earlier than being fillet welded. The bore of the pipe and flange are both the equal to grant exact float characteristics. Stainless steel socket weld flanges are oxidation resistant and promote better weldability and fabricability. WENZHOU HUASHANG STEEL CO.,LTD is manufacturer ,trader, supplier and exporter for socket weld flange.

Socket Welding Flanges Forming:

Forged

Socket Welding Flanges Material

Stainless Steel:

OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, 00Cr19Ni10, 00Cr17Ni14Mo2, ASTM A182-F304, F304L, F304H, F316, F316L, F321, F321H, F347H, F317,

Super Stainless Steel:

ASTM A182-904L, 317, 317L

Duplex Steel：

ASTM A182-F51, F53, F44

Special steel：

N06600, N08800, N08811

Alloy Steel:

16Mn, 12CrMo, 15Cr5Mo, Cr5Mo, 12Cr1MoV, ASTM A182-F11, F22, F91 F9  F5

Pipe Line：

ASTM A694-F42, F46, F48, F50, F52, F56, F60, F65, F70, F80

Carbon Steel：

ASTM A350-LF2, LF3  Q235A, 20#, ASTM A105

Socket Welding Flanges Standard &Size &Rate

ASME/ANSI B16.5              1/2"-24"    150LB

1/2"-3"     300LB  600LB

1/2"-2-1/2" 900LB  1500LB

Socket Welding Flanges Tests and Inspections

Analytic instrument of C&S

Machine Performance Test

Chemical Composition Analysis

Permeation Test

Ultrasonic Test

Metallographic microscope Test

Intergranular Corrosion Test

Hardness Test

Ferrite test

Impact Test(Low temperature, Normal temperature,-196 temperature.)

Test methods for pitting corrosion resistance

Magnetic particle inspection

Socket Welding Flanges Documentation Offered

Raw Material Test Report

EN10204 3.1 Test Certificate

Heat Treatment Chart

Heat Treatment Report

Quality Assurance Plan

Inspection and Test Procedure Report

Socket Weld Flanges Application

Stainless steel socket weld flange uses in oil and gas pipeline

Socket welding raised face flange uses in chemical industry

Alloy steel SWRF flange uses in plumbing

Socket weld flange uses in water supply systems

Asme b16.5 socket weld flange uses in power plant

Nickel alloy socket weld flange uses in paper industry

Monel 400 socket weld flange uses in general purpose applications

Monel 800 socket weld flange uses in fabrication industry

254Mo socket weld flange uses in petroleum

C-276 socket weld  flange uses in papermaking

Alloy 20 socket weld flange uses in shipbuilding

High quality socket weld  flange uses in petrochemical

Dulex steel socket weld flange uses in natural gas industry

Super duplex socket weld flange uses in ocean engineering

Ss socket weld raised face flange uses in nuclear industry

Hastelloy socket weld flange uses in food and beverage

Raised face socket weld flange uses in electrical powerplant

Ss nickel alloy socket weld flange uses in pharmacy

Product description

The connection form of 180 degree elbow is butt welding elbow and steel pipe directly. According to its curvature radius, butt welding 180 degree elbow can be divided into long radius and short radius . Pressure grade is divided into about 17 types, which are the same as American pipe standard. The most commonly used are STD ,SCH10,and SCH40 . According to material, they are carbon steel, alloy steel and stainless steel.

Elbow（LR/SR  180°）

180 degree pipe fitting Forming Type:

Mandrel-forming (so it will not reduce the wall thickness, extrusion moulding, pressing, colding working, machining, hot –bending, welded, heat treatment.

180 Degree Elbow Size/Dimensions:

seamless fittings 1/2"-32", welded fittings 1/2"-120"

45 Degree Elbow Wall Thickness: SCH5S, SCH10S, SCH10, SCH20, SCH30, SCH40S, STD, SCH40, SCH60, SCH80S, XS, SCH80, SCH120, SCH140, SCH160, XXS

45 Degree Elbow Bending Radius: R=1.0D, 1.5D, 2D, 3D, 5D, 8D, 10D....

180 Degree Elbow Standard:

GB 12459, GB/T 13401, SH3408, SH3409, ASME/ANSI B16.9, JIS B 2311/2220, DIN2617/2616/2615, GOST 1737

180 Degree Elbow Material

Stainless Steel:

OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, 00Cr19Ni10, 00Cr17Ni14Mo2,

ASTM A403-WP304, WP304L, WP304/304L, WP304H, WP316, WP316L, WP316/316L,

WP321, WP321H, WP347, WP347H

Super Stainless Steel:

ASTM 904L, B366-N08904, A403-WP317, 317L, 254SMO(UNS S31254)

Duplex & Super Duplex Steel:

ASTM A815-S31803, S32205, S32750, S32760, 2205

Low Temp. Steel:

ASTM A420-WPL6, WPL3

Alloy Steel:

12CrMo, 15Cr5Mo, Cr5Mo, 12Cr1MoV, 16Mn, ASTM A234-WP11, WP22, WP91, WP5, WP9

Pipeline Steel:

L245, L290, L360, L415, L450, L485, ASTM A860 (MSS SP-75)- WPHY42, WPHY52, WPHY60, WPHY65, WPHY70

Carbon Steel:

ASTM A234-WPB, WPC

Nickel Alloy Steel:

B361 WP6061, B366 N08904, N010276, N04400, N06600, N08825, N10276

B625 N08904, B574 N04400, N06600, N010276, B649 N08904

B625 N08904, B574 N04400, N06600, N010276, B649 N08904

180 Degree Elbow Tests and Inspections

X Radiography Test

Mechanical Test

Chemical Composition Analysis

Permeation Test

Ultrasonic Test

Metallographic Structure Test

Intergranular Corrosion Test

Hardness Test

Flattening Test

PMI

Impact Test

Documentation Offered

Raw Material Test Report

EN10204 3.1 Test Certificate

Heat Treatment Chart

Heat Treatment Report

Quality Assurance Plan

Inspection and Test Procedure Report

Welding Procedure Specification

Procedure Qualification Record

180 Degree Elbow Application

buttweld stainless steel 180 degree elbows use in oil and gas pipeline

180 degree buttweld pipe elbow uses in chemical industry

alloy steel 180 degree elbow uses in plumbing

buttweld 180 degree elbow uses in heating

180 degree buttweld elbow uses in water supply systems

asme b16.9 180 degree elbow uses in power plant

180 degree elbow uses in paper industry

180 degree elbow uses in general purpose applications

180 degree long radius elbow uses in fabrication industry

180 degree elbow uses in petroleum

buttweld 180 degree long radius elbow uses in papermaking

buttweld 180 degree short radius elbow uses in shipbuilding

high quality180 degree pipe elbow uses in petrochemical

alloy 20 180 degree elbow uses in natural gas industry

nickel alloy 180 degree elbow uses in ocean engineering

duplex steel 180 degree elbow uses in nuclear industry

Ss 180 degree elbow uses in food and beverage

hastelloy 180 degree elbow uses in electrical powerplant

Asme b16.9 180 degree elbow uses in pharmacy

We are stock , distribution, manufacturer, suppliers, stockholder, traders, wholesaler,importer and exporter for 180 degree elbow in stainless steel, duplex steel .

A buttweld fitting is a weldable pipe fitting that can change flow direction,branch off, reduce size or connect auxiliary equipment. Butt weld fittings include elbow, tee,reducer,cap and cross.These weldable pipe fittings are the most common type of welded pipe fitting and are specified by nominal pipe size and pipe schedule.The raw materials of weldable steel pipe fittings   are seamless pipe, welded pipe, forged pipe(high pressure) and steel plate.The forming processes of butt weld fittings is as follow:Extrusion moulding,hot pressing,cold machining,hot machining,welded,heat treatment. Huashang Steel is one of the best buttweld fittings suppliers from China.

Stainless steel tube weld fittings  Manufacture Specification：

ASME / ANSI B16.9, JIS B 2311/2220, DIN2605 / 2616/2615, EN10253, MSS SP-43 / SP-75, GOST 17375/17376/17378/17379

Butt Weld Fittings Type：

-(SMLS or Welded) Elbow，45°，90°，LR，SR

-(SMLS or Welded) Tee

-(SMLS or Welded) Reducer

-(SMLS or Welded) Stub Ends

-(CAP

-Special Type acc. to customer's drawings.

Butt Weld Fittings Materials：

Stainless Steel: OCr18Ni9, 0Cr18Ni9Ti, 1Cr18Ni9Ti, 0Cr18Ni12Mo2Ti, 00Cr19Ni10, 00Cr17Ni14Mo2, ASTM A403-WP304, WP304L, WP304/304L, WP304H, WP316, WP316L, WP316/316L, WP321, WP321H, WP347, WP347H

Super Stainless Steel: ASTM 904L, B366-N08904, A403-WP317, 317L, 254SMO(UNS S31254)

Duplex & Super Duplex Steel: ASTM A815-S31803, S32205, S32750, S32760, 2205

Low Temp. Steel: ASTM A420-WPL6, WPL3,

Alloy Steel: 12CrMo, 15Cr5Mo, Cr5Mo, 12Cr1MoV, 16Mn, ASTM A234-WP11, WP22, WP91, WP5, WP9

Pipeline Steel: L245, L290, L360, L415, L450, L485, ASTM A860 (MSS SP-75)- WPHY42, WPHY52, WPHY60, WPHY65, WPHY70

Carbon Steel: ASTM A234-WPB, WPC

Nickel Alloy Steel: B361 WP6061, B366 N08904, N010276, N04400, N06600, N08825, N10276

B625 N08904, B574 N04400 , N06600, N010276, B649 N08904

OD：

Seamless products DN15 ( 1/2'' )-- DN800 ( 32'' )

Welded products DN450 ( 18'' ) --DN3000 ( 120'' )

WT：

SCH 5S --- SCH 160

Description of 3 Inch Gate Valve:

ZECO 3 inch gate valve is mainly used for fully open or fully closed switching valves. They are usually not used for throttling purposes, but for slurries, viscous fluids, etc. Gate valves feature a removable wedge that moves with the stem nut. The wedge moves perpendicular to the direction of flow. Gate valves usually have a minimum pressure drop when fully open, provide tight shut-off when fully closed, and remain relatively free of contamination buildup.

Features of 3 Inch Gate Valve:

1. The wedge of ZECO 3 inch stainless steel gate valve are fully guided to the seats. For this purpose, ZECO 3inch gate valve is equipped with integral cast gate, which is wedged at a certain angle to the vertical center line, and its function is to close more and more tightly during the closing process. The gate is cast as a whole, machined and automatically surfacing, and has a ring groove on the surface for a better fit on the seat surface;

2. ZECO won't because of urgent orders, and ignore the production technological process, ZECO each production line workers, any steps based on by technology department common processes for production and technology department, at the same time, the engineer of the quality department is on the basis of international standards for production of every step for testing to ensure that products are qualified;

3. The seat ring of ZECO 3 inch gate valve is forged and designed to reduce wear during switching and to prevent wear of the valve body and seal rings during flow;

4. After welding and required heat treatment, the seat ring of ZECO 3 inch gate valve shall be thoroughly cleaned by CNC machine and inspected by inspectors before assembly is allowed.