ASTM A234 WPB pipe fittings
ASTM A234 is standard of the pipe fitting material. However, this is indicating the properties of the material of various kinds of alloy steel and carbon steel. WPB is a steel grade in which W stands for weldable, B is grading B and P stands for pressure. Thus it is referring minimum yield strength.
Type Long Radius Elbows,Long Radius Reducing Elbows,Long Radius Returns,Short Radius Elbows,Short Radius 180-deg Rerurns,3D elbows,Straight Tees,Straight Crosses,Reducing Outlet Tees,Reducing Outlet Crosses,Lap Joint Stub Ends,Caps,Reducers
Size OD: 1/2″ ~48″
Thickness: SCH5~SCHXXS
Manufacturing technique£ºpull, push
Producing Standard ASME B16.9 ASME B16.28 ASME B16.49 MSS SP-43 MSS SP-75
Material Carbon Steel ASTM/ASME SA 234 WPB