ASTM A514 grade B steel

ASTM A514 grade B is a high yield strength quenched and tempered alloy steel sheet suitable for welding, primarily for welding bridges and other structures.

The maximum thickness of ASTM Gr.B steel plate is 32mm.

ASTM A514 Gr.B Delivery Status:
A514 Gr.B steel plate should be heat treated: heat the steel plate to not less than 900℃, quench it in water or oil, and temper it at not less than 620℃

ASTM A514 Gr.B chemical composition (mass fraction %):

C	Si	Mn	P	S
0.12-0.21	0.20-0.35	0.70-1.00	≤0.035	0.035
Cr	Mo	Ti	B	V
0.40-0.65	0.15-0.25	0.01-0.04	0.0005-0.005	0.03-0.08

ASTM A514 Gr.B mechanical properties:

Yield Strength	Tensile strength	Elongation%	Rate of reduction in area%	Hardness
≥690Mpa	760-895Mpa	≥18	≥40	235-293HB

ASTM A514 grade B the main purpose:
Used in places where high tensile strength and high yield are required, engineering automobile lifting gears, marine platforms.

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