What is A234 WPB Steel pipe fitting?

ASTM A234 WPB steel pipe fittings are used for the pressure piping systems of moderate and high temperature services.

Material:

ASTM A234 is the standard of material ,which indicating 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 .So A234 WPB pipe fittings are butt welding ends , commonly used to be welded with the steel pipes of A106, A53, GR.B material, or API 5L GR.B material

Chemical Composition (%) of ASTM A234 WPB

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
Mechanical properties (%) of ASTM A234 WPB
Item Tensile Strength (KSI) Yield Strength (KSI)
WPB 60 35

Type

The regular products of A234 WPB pipe fittings are elbows, tees, reducers, caps, cross .

All the A234 WPB pipe fittings include the seamless A234 WPB pipe fittings which are made from the seamless steel pipes, and the welded pipe fittings which are made from ERW steel pipes.

elbows , tees, reducers are made from steel pipes , the caps are made from plates

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