A514 GrQ modified rack steel plate for offshore drilling platforms

A514 GrQ modified steel plate is rack steel, used to manufacture jack-up offshore drilling platform legs. Racks for offshore platforms generally use A514 GrQ modified. Its yield is greater than 630MPa, the tensile strength is above 700MPa, and the physical quality meets or exceeds the ASTM-A514 standard.

Chemical composition and melting analysis of A514 GrQ modified steel plate:

C	Si	Mn	P	S	Nb	V	B
0.12	0.25	1.03	0.008	0.002	0.05	0.05	0.0016

Mechanical properties of A514 GrQ modified steel plate:

Re/MPa	Rm/MPa	A50/%	Impact temperature/℃	KV2/J		1/4T hardness（HB）
				1/4T	1/2T
≥690	770-895	≥14	-40	≥69	-	240-300
			-30	-	≥69

Maximum thickness of A514 GrQ modified rack steel:
A514 GrQ modified rack steel is ABS certified to a maximum thickness of 215mm.

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