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A514 Gr.S steel plate is an alloy structural steel. A514 Gr.S is a quenched and tempered high-strength weldable steel plate under ASTM standards. A514 Gr.S steel plate is mainly used in places that require high tensile strength and high yield. Such as lifting gears for engineering vehicles, racks for offshore platforms, etc.
Chemical composition of A514 Gr.S steel plate (melting analysis):
| C | Si | Mn | P | S | Mo | Nb | V | B |
| 0.11-0.21 | 0.15-0.45 | 1.1-1.5 | ≤0.03 | ≤0.02 | 0.1-0.6 | ≤0.06 | ≤0.06 | 0.001-0.005 |
Mechanical properties of A514 Gr.S steel plate:
| Delivery Status | Thickness | Mechanical properties | |
| Quenched and tempered | ≤20mm | Rp0.2(MPa) | ≥690 |
| Rm(MPa) | 760-895 | ||
| A50(%) | ≥18 | ||
| Z(%) | ≥40 | ||
| HBW | 235-293 | ||
| >20-65mm | Rp0.2(MPa) | ≥690 | |
| Rm(MPa) | 760-895 | ||
| A50(%) | ≥18 | ||
| Z(%) | ≥50 | ||
| >20-65mm | Rp0.2(MPa) | ≥690 | |
| Rm(MPa) | 760-895 | ||
| A50(%) | ≥18 | ||
| Z(%) | ≥40 | ||
The hardness of A514 Gr.S steel plate is between 235-293, the yield is greater than 690MPa, and the tensile strength is between 760MPa-895MPa. A514 steel plate grades: A514 GrA, A514 GrB, A514 GrE, A514 GrF, A514 GrH, A514 GrP, A514 GrQ, A514 Gr.S steel plates. The thickness, chemical composition and properties of different grades of A514 steel plates are different.
