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Stainless steel round tube is a hollow strip of round steel, which is widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial conveying pipelines and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. Stainless steel round tube is also commonly used to produce a variety of conventional weapons, barrels, shells and so on.

Classification

Such steel tubes can be divided into two categories: stainless steel seamless steel tubes and stainless steel welded steel tubes (with seam tubes).According to the manufacturing process, there are several basic types of hot rolling, extrusion, cold drawing and cold rolling. According to the shape of the section, it can be divided into a circular tube and a special-shaped tube. A circular steel pipe is widely used, but there are also some square, rectangular, semi-circular, hexagonal, equilateral triangle, octagonal and other shaped stainless steel pipe.

For steel tubes subjected to fluid pressure, hydraulic tests are carried out to verify their pressure resistance and quality. No leakage, wetting or expansion is allowed to pass under the specified pressure. Some steel tubes are also subjected to crimping test, flare test and flattening test according to the standard or the requirements of the purchaser.

Seamless stainless steel round tube, also called stainless steel seamless tube, is made of steel ingot or solid tube blank through perforation, and then made by hot rolling, cold rolling or cold drawing. The specifications of the seamless steel pipe are expressed by the outer diameter by the wall thickness in millimeters.

The 304 stainless steel round tube is called SUS304 stainless steel tube, and the SUS304 stainless steel round tube is a stainless steel tube of American grade material. The domestic grade is equivalent to 0Cr19Ni9 stainless steel tube, usually replaced by 0Cr18Ni9. The mechanism of stainless steel rust prevention is that the alloying elements form a dense oxide film, which is insulated from oxygen and prevents further oxidation. Therefore, stainless steel is not "stainless".

Use of stainless steel tube

It is widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used to produce a variety of conventional weapons, barrels, shells and so on.

WENZHOU HUASHANG STEEL CO.,LTD produces high quality stainless steel tubing for sale. Welcome to consult.

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. As one of the most professional stainless steel capillary tube suppliers    in China, 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.

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 stainless steel capillary pipe 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 tubes can be kept from deforming regardless of the rotation to each angle, bring convenient for our daily life.

  ss 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.

Length: Cut to Length

Stainless Steel Capillary Tube Sizes & Tolerance

ADVANTAGES OF SS CAPILLARY TUBE

The ss capillary tube has high precision and can be used in various measuring instruments. Based on its thick-walled, small-diameter structure (usually 1/8" or smaller diameter), such pipes will be used in various key applications, including nuclear reactors and even resistance-heated ion rocket jets.

Key Uses

With the technological advances in the life science market, small components can be used under higher operating pressure. Ultra-small-diameter capillary is very important for high performance and ultra-high performance liquid chromatography (HPLC and UPLC) equipment. Generally, the outer diameter of such capillaries is less than 1/16 (1.59 mm), which can be used in many key applications. In addition, the use of seamless capillaries in key applications can improve the necessary sampling efficiency.

Certain professional manufacturing technologies can achieve the cleanliness of key products required for such applications. Impurities such as grease, grease and other foreign substances left behind in the manufacturing process of stainless steel capillaries can lead to cross-contamination and sample reading errors. Before installation, traditional pipe fittings usually require additional cleaning on site. In order to minimize the risk of cross-contamination and save time, some special processes have been developed. Through this process, the pipes will be cleaned immediately after the manufacturing process under high pressure and high temperature to remove all kinds of impurities left behind. In this way, the impurities under the fittings can be reduced and the integrity of the samples can be ensured, thus providing consistent results.

Advantages

Because the high-quality seamless capillary is made of a single piece of homogeneous steel and has continuous and uninterrupted granular structure, it is more suitable for the major application sites requiring the use of homogeneous materials for the whole tube. Welding and mechanical fittings can produce discontinuity, which may lead to crevice corrosion and mechanical failure.

High-quality stainless steel will form a passive protective layer on the surface under oxygen-enriched conditions. Because different alloying elements have different melting points, changing the key chemical composition in the heat affected zone (HAZ) can cause the layer to be affected by poor heat treatment and welding.

MAIN CONSIDERATIONS IN CHOOSING SS CAPILLARY TUBE

Most high-performance liquid chromatography columns are made of stainless steel. However, when choosing pipe material, the first thing to consider is whether it is chemically compatible with the sample and mobile phase. Selection of fittings for liquid runners is often the source of problems in separation and sampling. This is usually due to the chemical incompatibility between the fittings and the sample and/or mobile phase. Some samples will "stick" on the surface of stainless steel tubes, resulting in sample loss, reduced production and residual. However, if it is determined that stainless steel is the best "material" compatible with the sample, no impurities such as oil, grease and other foreign matter from the manufacturing process should be included in the inner diameter range of the pipe. Foreign bodies may cause cross-contamination and sample reading errors. Therefore, in this industry, the cleanliness of pipe fittings is very important, and traditional pipe fittings usually need to be cleaned on site before installation.

When determining the chemical compatibility of stainless steel with the sample, we must consider the three main characteristics of the capillary provided by stainless steel:

1. Inner Diameter Smoothness

This ensures maximum permissible laminar flow, thereby reducing turbulence and improving system resolution.

2. concentricity

The highly concentric inner diameter will reduce the fluid disturbance at the junction and help to reduce the band broadening.

3. Volume consistency

If the volume control is better, it can help to reduce the residence time and diffusion effect, thereby improving the overall peak resolution.

Choosing the right fittings ensures the integrity of the sample and provides consistent results. It can also improve the measurement speed and accuracy. Clean inner holes in the ss capillary tube will restrict Newtonian fluid passing through the sample ring. All these characteristics will lead to better sample readings.

Product description

Eccentric reducer is  the size of the head whose center of the circle is not on the same line. Its function is to stick to the wall or ground to walk the pipeline without occupying space, and it is to connect two different caliber pipelines to change the size of the flow. We are reliablle eccentric reducer supplier.

REDUCER（Concentric,Eccemtric,with hem,without hem）

Eccentric Reducer Forming Type:

Pressing(Cold working/Hot working)Machining,Welded,Heat Treatment.

Eccentric Reducer Size:

Seamless Fittings 1/2"-32", Welded Fittings 1/2"-120"

Eccentric Reducer Standard:

GB 12459, GB/T 13401, SH3408, SH3409, ASME/ANSI B16.9, JIS B 2311/2220, DIN2617/2616/2615 , GOST 17378

Eccentric Reducer Wall Thickness:

SCH5S-SCH160

Eccentric Reducer 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

Eccentric Reducer 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

Eccentric Reducer Application

Stainless steel eccentric reducer in oil and gas pipeline

High quality eccentric reducer uses in Chemical industry

Alloy steel eccentric reducer uses in Plumbing

Buttweld eccentric reducer fitting uses in heating

Hastelloy eccentric reducer uses in water supply systems

Nickel alloy eccentric reducer uses in power Plant

Inconel buttweld eccentric reducer uses in paper industry

Reducer pipe fittings uses in general purpose applications

Eccentric reducer uses in fabrication industry

Manufacture eccentric reducer uses in petroleum

Monel steel eccentric  reducer uses in Papermaking

Duplex steel eccentric reducer uses in shipbuilding

Super duplex steel eccentric reducer uses in Petrochemical

Alloy 20 eccentric reducer uses in natural gas industry

Ss304 eccentric  reducer  uses in ocean engineering

Super Austenite steel reducer uses in nuclear industry

SS eccentric reducer  in food and beverage

254Mo eccentric reducer uses in electrical powerplant

Asme B16.9 eccentric  reducer uses in pharmacy

We are stock, distribution, manufacturer, suppliers, stockholder, traders, wholesaler,importer and exporter for eccentric reducer in stainless steel, duplex stee, hastelloy, monel steel and inconel steel.

The SS ceramic membrane module is designed by different applications. Stainless steel could be used as the material of module/housing, that is, ss membrane housing. 

JIUWU company could produce the extra large stainless steel membrane housing as customer demand, such as loading over 91 pcs membranes. It also can be 1, 3, 7, 12, 19, 37, 61, 76, 91, 138, 241 pcs membranes.

OVER VIEW OF SS CERAMIC MEMBRANE HOUSING

Ceramic membrane element has a variety of narrow distribution, high porosity, high capacity per unit membrane surface area. 

Ceramic membrane element needs to be used and operated in normal operating procedures. The following conditions and chemicals of operation are absolutely not allowed, because it may destroy or damage the element:

Sharp variations in pressure;

Vigorous variations in temperature, △≤5℃/min;

Meet with strong acid and alkali with high concentration and temperature in a long time such as hydrofluoric acid, sulphuric acid ,hydrochloric acid in combination with stainless steel housings, formic or acetic acid at high concentration and high temperature, silicates, acrylics, varnish, silicon soil, resins, wax;

Filtering high viscosity liquid or liquid containing large rigid solid granules;

Using pumps without a soft starter or frequency converter;

Strike or knock on purpose;

CHARACTERISTICS OF STAINLESS STEEL MEMBRANE HOUSING

Number of loading membrane elements: 1, 3, 7, 12, 19, 37, 61, 76, 91, 138, 241 pcs

Matching membrane element length Diameter: 500, 1000, 1200mm / diameter: 25, 30, 40 mm

Main body material: SUS304 (L), SUS316 (L)

Sealing material: EPDM, Fluoro Rubber, Silicon, PTFE

Interface: Flange, Clamp, Whorl coupling

Pressure level: 0-1.0Mpa, 0-1.6Mpa, 0-2.5Mpa, 0-4.0Mpa

Standard: ISO, DIN / chemical grade, sanitary grade

APPLICATION OF SS CERAMIC MEMBRANE HOUSING

1. Food & Beverage

Sweetener

Wine (beer membrane filtration)

Fruit and vegetable juice

Dairy

Flavoring and seasoning

Natural herb extract

Enzyme

2. Bio-Pharm

Fermentation broth-antibiotic (including purification of antibiotics)

Fermentation broth-amino acid

3. Chemical and Petro-Chemical

Natural rubber (skim latex)

polysolicon cutting fluid recovery

Brine filtration

4. Water & Wastewater Treatment ( ceramic membranes for wastewater treatment )

Oilfield injection water

Paper industry wastewater treatment

Textile and printing industry wastewater

Oily wastewater treatment

Titanium dioxide water treatment

Pharmaceutical/chemical industry wastewater

Desalination/seawater treatment

Landfill leachate

Degreasing liquid treatment

Palm oil wastewater