A517GrQ implement ASME standards, mainly used in offshore platform construction, mining and all kinds of engineering construction in the drill, excavator, electric wheel dump truck, mine car, excavators, loaders, bulldozers, cranes, hydraulic support in coal mine and other mechanical equipment and other structures. A517GrQ yield strength is not less than 510, the main trace elements, NI not less than 1.5, the Cr is not less than 1, Mo is not less than 0.5.

A517GrQ Chemical Composition(Melting Analysis)
 

C	Si	Mn	P	S	Ni	Cr	Mo	V
≤0.18	0.15～0.35	0.95～1.30	≤0.035	≤0.010	1.20～1.50	1.00～1.50	0.40～0.60	0.030～0.080

A517GrQMechanical Property
 

Specifi cation mm	Mechanical Property				Impact test T/4		Impact test T/2		Hardness test T/4 HB
	Yield Strength Mpa	Tensile Strength Mpa	Reduction of are	A50 ％	Temperature ℃	Impact energy J	Temperature ℃	Impact energy J
177.8	≥ 690	790～ 930	≥ 45	≥ 14	-37	≥ 69	-27	≥ 69	≥ 260

Delivery Condition: Quenched and Tempered
 

Surface Quality  A517GrQ
The surface quality of steel plate should apply to the specification ASTM A20/A20M

Katalor A517GrQ production has reached the international leading level. As countries to deep water drilling field, thickness of 177.8 mm rack steel become a recognized international main specifications, used in the manufacture of sea jack-up platform is one of the most important components and rack.
 

we promise we can offer you the qualified A517GrQ mod semicircular plate and rack plate at the competitive price and rapid delivery time. We can produce as our customer's requirement. We keep many A517GrQ mod semicircular plate and rack plate stock in our warehouse, So hereby, we sincerely hope you join us, let's join hands to make you be the No.1 in your local steel market.