What is ASTM A514 grade B sheet

What is ASTM A514 grade B sheet? ASTM A514 grade B sheet is a kind of alloy steel used in applications that require a particularly high yield strength. ASTM A514 grade B sheet needs heat treatment of quenching and tempering to guarantee its excellent performance. ASTM A514 grade B sheet has a minimum yield strength of 690 MPa.

ASTM A514 grade B sheet chemical composition:

C	Mn	P	S	SI	Cr	Mo	V	Ti	B
0.12-0.21	0.7-1.0	≤0.035	≤0.04	0.20-0.35	0.40-0.65	0.15-0.25	0.03-0.08	0.01-0.03	0.001-0.005

ASTM A514 grade B sheet mechanical property:

Grade	Thickness	Yield	Tensile	Elongation
ASTM A514	mm	Min Mpa	Mpa	Min %
	20	690	760-895	18
	20-65	690	760-895	18
	65-150	620	690-895	18

ASTM A514 grade B sheet has the similar mechanical properties with other ASTM A514 steel grades. However, those ASTM A514 steel grades vary in chemical makeup and thickness limitation. The main application of ASTM A514 grade B sheet includes crane booms, mining equipment, hauling equipment, and lifting equipment, etc.

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