ASTM A514 Grade Q Steel Plate
ASTM A514 Grade Q steel plate
Products under ASTMA514 standard: A514Gr.A, A514Gr.B, A514Gr.E, A514Gr.F, A514Gr.H, A514Gr.P, A514Gr.Q, A514Gr.S are mainly used in places requiring high tensile strength and high yield, engineering automobile lifting gears, large excavators, offshore platforms, etc. Different grades of A514 steel plate thickness, chemical composition and properties are different. However, the mechanical properties specified in ASTM A514 are generally similar to those of Q690 in China. The rack used for the offshore platform is generally A514Gr.Q or A514Gr.Q, depending on the thickness, its hardness is between 230-390, the yield is greater than 630MPa, and the tensile strength is above 700MPa. The product for the domestic Wugang initiative, the international leading, ending China's offshore oil platform with steel plate A514GrQ long-term dependence on imports. Physical quality meets or exceeds ASTM-A514 standards.
Mechnical property for A514GrQ alloy steel:
| Thickness (mm) | Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% |
| 50mm | |||
| T≤65 | 690 | 760-895 | 18 |
| 65<T | 620 | 690-895 | 16 |
Chemical composition for A514GrQ alloy steel (Heat Analysis Max%)
| Main chemical elements composition of A514GrQ | ||||||||
| C | Si | Mn | P | S | Cr | Mo | Ni | Ti |
| 0.14-0.21 | 0.15-0.35 | 0.95-1.30 | 0.035 | 0.035 | 1.00-1.50 | 0.40-0.60 | 1.20-1.50 | 0.03-0.08 |
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