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A105N Carbon Steel Socket weld 90Degree Elbow

What is a SW fiting and how about a SW Elbows’ specification?

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What is a SW fiting?

Socket welding (SW) is used for welding pipes and fittings including reducers, tees and elbows. Socket weld pipe fittings are used to permanently join pipes that are inserted into a recess in the fitting, flange or valve. Once correctly inserted, fillet type sealing welds are applied to join the pipe to the fitting.

Specification of a SW Elbow

Type 90 Degree and 45 Degree
Shape Straight and Reducing
Size Range 1/8″ – 4″ / DN6 – DN100
Pressure Rating Class 3000lbs, 6000lbs, 9000lbs
Standard GB/T 14383, 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
Stainless Steel ASTM A182 F304/304L/304H, 316/316L, 310S, 317,347,904L



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