A517GrQ steel for offshore oil drilling racks
A517GrQ material is a high-strength quenched and tempered alloy steel plate, which belongs to the steel for offshore oil drilling racks. The upper limit of A517GrQ steel plate thickness is 150mm, and the upper limit of rack steel is 177.8mm.
Composition
C |
Si |
Mn |
P max. |
S max. |
Ni |
Cr |
Mo |
V |
|
0.12-0.23 |
0.13-0.37 |
0.87-1.41 |
0.035 |
0.035 |
1.15-1.55 |
0.94-1.56 |
0.36-0.64 |
0.02-0.09 |
Mechanical properties
Thickness |
Yield strength |
Tensile strength |
Elongation |
|
mm |
min Mpa |
Mpa |
Min % |
|
6-65 |
690 |
795-930 |
0.16 |
|
65-150 |
620 |
725-930 |
0.14 |
Delivery status: delivered in quenched and tempered state
A517GrQ steel plate should be heat treated: heat the steel plate to no less than 900°C, quench it in water or oil, and temper at no less than 620°C.
Application:
A517GrQ steel is a high-strength quenched and tempered steel plate, commonly used in pressure vessel steel plates, shipbuilding plates, and offshore drilling platform rack steels. Arc slabs, drilling rigs, electric shovels, electric wheel dump trucks, mining trucks, excavators, loaders, bulldozers, various cranes, coal mine hydraulic supports and other mechanical equipment and peculiar structural parts used in mining and various engineering constructions.
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