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Aluminum is an ultra-light metal, making it an optimal choice for low cost and lightweight pipe nipples, However, because they are velnerable to corrosion, aluminum pipe nipples are not recommended for wet or salty environments.  

Aluminum pipe nipple is used only in specialty applications where their uses and limitations are understood. They are not designed for use in general shop water or air plumbing layouts (refer to traditional metals like brass, steel/malleable iron, stainless steel, plastics, etc. for general plumbing applications). Aluminum to aluminum pipe threads are not designed to be removed or re-tightened as they will bind very quickly and easily (ie. the friction of threading together will cause the aluminum to bond to itself - PTFE sealants, pastes, or tapes can lessen the effect but will not prevent it). Therefore, once aluminum to aluminum threads are threaded together, it is considered permanent and leak paths would be difficult to eliminate (but weld aluminum fittings are available, N205WD, N210WD, N225WD, etc).

As one of the most famous pipe fittings manufacturers in china, Sanvo Pipes & Fittings produces the highest quality aluminum weld pipe fittings and couplings to the standards of DIN, BS, ISO, ANSI, API, and JIS, etc. For hardware customers who choose by different materials, we provide carbon steel pipe nipples, 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 aluminum 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 ".  

At Sanvo Pipes & Fittings we pride ourselves on our superior quality and service. We trust Sanvo will be your reliable supplier of aluminum pipe nipples in China. If you want to make a request quote, please send email to info@pipenipples.com or use our simple online Request for Quote Form. Our experts on manufacturing aluminum pipe nipples can help you answer any questions.

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.

Are you looking for a professional socket weld flange supplier  ? Just contact us!

Product description

Stainless steel socket weld flange is a flange with one end welded with steel tube and the other end connected with bolts. It is suitable for connecting pipe with small diameter, high pressure and high temperature, usually used in the pipelines with PN≤ 10.0mpa and DN≤40.

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 one of the most professional   socket weld flange manufacturers   in China.

Explore more about socket weld flanges:

What's The Difference Among Weld Neck Flanges, Socket Weld Flanges, Slip On Flanges?

What is socket weld?

Socket Welding Flanges 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.

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

Eddy current testing of welds is the use of eddy current technology to test the welded pipe, this type of testing is based on the premise of lossless. At the same time, we need to be clear that the welded pipe is, in general, the steel pipe that we usually say, which is a welded steel pipe.

Eddy current weld testing is a non-destructive testing technique for detecting component defects by using the principle that the eddy current induced by the AC electromagnetic coil on the surface of the metal member encounters a defect. The oscillating current is generated in the conductive member by the excitation coil by the principle of electromagnetic induction, and the amount of change in the eddy current is measured by the detecting coil, thereby obtaining information on the component defect.

Eddy current testing is a non-destructive testing technique in which an alternating current electromagnetic coil induces eddy currents on the surface of a metal member. It is suitable for the detection of defects in conductive materials, including ferromagnetic and non-ferromagnetic metal materials.

BKNET-01\02 NDT weld testing equipment is used for on-line and off-line inspection of welded pipes. It has high sensitively to axial defects such as unwelded welding, dark spots and open cracks. In the production process, products are caused by welder failure. Slow and long-term injuries can be reliably detected.

BKNET-0102 Welded Pipe Eddy Current Flaw Detector performance 

BKNET-0102 Welded Pipe Eddy Current Flaw Detector Features:

High precision end and end-to-tail signal removal

High precision real-time, delayed alarm output

Fast digital／analog electronic balance

Memory track delay blanking function  

Non-equal amplitude phase／amplitude alarm domain

Remote automatic help system

Synchronous alarm output for internal and external clock control

Nanjing BOKENA Automation System Co., Ltd., originated from the eddy current testing laboratory of the Nanjing University of Technology. It is one of the most professional ndt testing equipment suppliers in China. We sincerely invite and welcome people from all around the world to invest and create more values together.

As the phenomenon of welding spatter is very common, the use of anti-spatter coating for welding is also very extensive. For general structural parts, the type of welding anti weld spatter coating has little effect, as long as it can effectively prevent welding spatter from adhering to the working surface in the welding process. However, for some key products and workpieces, such as high pressure vessels, if the anti-spatter coating contains too many harmful elements, it may cause spot corrosion, intergranular corrosion, etc. It will cause leakage in the subsequent operation of the equipment and lead to malignant accidents.

The selection of anti weld spatter coating also needs to be combined with the whole production process and process method. The process flow and process method mainly depend on the part after welding. At present, the technological process of structural parts is mainly divided into two categories: one is post-processing painting, the other is post-coating processing. If it is painting after processing, it must be cleaned before painting in order to remove rust and spray paint because cutting fluid will be used in the process of mechanical processing.

The type of anti weld spatter coating used in welding of the structure parts of the processed coatings has little effect. Even if oil-based anti-spatter coating is used, it can be completely removed by the cleaning process before painting, and the quality of the spray paint will not be affected. If the coating is processed or not processed, the use of oil-based anti weld spatter coating will bring some problems. Direct shot blasting treatment of structural parts can remove surface rust. But it is difficult to remove oil-based anti weld spatter coating coated on the weld seam of the workpiece. It will adsorb on the surface of the pellet, which causes pollution on the surface of some workpieces with oil stain, seriously affecting the adhesion of the paint film. In order to prevent the influence of oil-based anti-splash coating on subsequent painting, it is necessary to increase the cleaning process and carry out the necessary cleaning of the workpiece. Increasing the cleaning will bring a series of problems, such as production area shortage, cost increase, sewage discharge and so on. Therefore, for the workpieces processed or unprocessed after painting, oil-free anti weld spatter coating should be selected during welding, and water-borne or powder anti weld spatter coating should be used.