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ASTM A234 is Standard Specification for steel pipe fitting includes carbon and alloy steel material for moderate and high temperature services. It covers steel fittings of seamless and welded types. Steel Pipe fittings are applied in pressure pipelines and in pressure vessel fabrications.
A234 WPB steel pipe fittings mean the pipe fitting which material is ASTM A234 WPB,they are used for the pressure piping systems of moderate and high temperature services .ASTM A234 is the standard of pipe fittings material,it indicates the materials properties of different kinds of carbon steel and alloy steel,WPB is one of the steel grade in this standard.W means weldable,P means pressure,B is grade b,refer to the minimum yield strength.
Manufacturing process of ASTM A234 WPB steel pipe fittings:
The process of A234 WPB pipe fittings manufacturing is called “wrought” which means it could be casted or forged.Usually the ASTM A234 WPB pipe elbow,pipe tee, pipe reducer are made from steel pipes,the caps are made from plates.But the large sizes pipe fittings are commonly manufactured in pieces and welded together.
| Grade | C | Mn | P | S | Si | |
| WPB | 0.3 | 0.29-1.06 | 0.05 | 0.058 | 0.1min | |
| Grade | Cr | Mo | Ni | Cu | V | Nb |
| WPB | 0.4 | 0.15 | 0.4 | 0.4 | 0.08 | 0.02 |
| Item | Tensile Strength (KSI) | Yield Strength (KSI) |
| WPB | 60 |
35 |
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Main Product:
Seamless Steel Pipe,
Welded Steel Pipe ,
Casing and Tubing,
Carbon Steel Pipe,
Stainless Steel Pipe,
Alloy Steel Pipe
