ASTM A234 / A234M Grade WPB

Chemical Properties

Carbon	Manganese	Phosphorus	Sulfur	Silicon	Molybdenum	Nickel	Copper	Vanadium

Mechanical Properties

Tensile strength, min ksi [MPa]	Yield strength, min, ksi [MPa] (0.2 % offset)

Elongation
Standard round specimen, min % in 4 D		Rectangular specimen for wall thickness 5/16		Rectangular specimen for wall thickness less than 5/16
Longitudinal	Transverse	Longitudinal	Transverse	Longitudinal	Transverse

Note A: WPB and WPC fittings manufactured from plate shall have a minimum elongation of 17 %. Note B: For each 1/₃₂ in. [0.79 mm] decrease in wall thickness below 5/₁₆ in. [7.94 mm], a deduction of 1.5 % for longitudinal and 1.0 % for transverse from the values shown above is permitted. The following table gives the minimum value for various wall thicknesses.