ASTM A737 / A737M Grade B

Chemical Properties

Carbon, max	Manganese	Phosphorus, max	Sulfur, max	Silicon	Columbium, max
0.22	1.07–1.62A	0.025	0.025	0.10-0.55	0.05

Note A: The maximum manganese may be increased to 1.60 % on heat analysis and 1.72 % on product analysis, provided that the carbon content on heat analysis does not exceed 0.18 %.

Mechanical Properties

Yield Strength, min, ksi [MPa]	Tensile Strength, ksi [MPa]	Elongation in 8 in. [200 mm], min, %A	Elongation in 2 in. [50 mm], min, %A
50 [345]	70-90 [485-620]	18	23

Products