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What is the difference between the chemical composition of A514 Gr.A and A514 Gr.B steel plates

Posted:2022-02-08 11:22:19

A514 Gr.A steel plate and A514 Gr.B steel plate are high-yield strength alloy steel plates, which implement the standard ASTM A514/A514M-2014. They are mainly used in places requiring high tensile strength and high yield, engineering automobile lifting gears, large-scale excavation machine, marine platform, etc.

Chemical composition of A514 Gr.A steel plate (finished product analysis):

C	Si	Mn	P	S	Cr	Mo	Zr	B
0.15-0.21	0.4-0.8	0.8-1.1	≤0.03	≤0.03	0.5-0.8	0.18-0.28	0.05-0.15	≤0.0025

Chemical elements of A514 Gr.B steel plate (melting analysis):

C	Si	Mn	P	S	Cr	Mo	V	Ti	B
0.12-0.21	0.2-0.35	0.7-1	≤0.03	≤0.03	0.4-0.65	0.15-0.25	0.03-0.08	0.010-0.1	0.0005-0.005