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Carbon Steel A105N Socket Weld Coupling

What is a SW coupling and what about its size and specification

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What is a SW Coupling

Forged socket weld coupling is a short piece of pipe with socket bore at end, which is manufactured in acordance to ASME B16.11. Couplings are used to help extend or terminate runs and to change pipe sizes and are designed to provide good flow characteristics. We supplied many A105 carbon steel and 316 stainless steel socket weld fittings to customers.

Socket Weld Fittings are a family of high pressure forging fittings that used only in conjunction with ANSI Pipe and are available in the same size range.

Even though there are some similarities between the shapes of the two welds, but socket weld is still considered to be different from a fillet weld.

Size & Material

Type Full and Half Coupling
Shape Straight and Reducing Coupling
Size Range 1/8″ –  4″ / DN6 – DN100
Pressure Rating Class 3000lbs, 6000lbs, 9000lbs
Standard ASME B16.11, BS3799
Carbon Steel ASTM A105 / A105N
Low Temp Carbon Steel ASTM A350 LF2/LF3
Pipeline Steel ASTM A694 F42 / 46 / 56 / 60 / 65
Alloy Steel ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / F22
Stainless Steel ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317,347,904L
Duplex Stainless Steel ASTM A182 F51, F53, F44
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