ASTM A514 grade Q steel plates are conventional quenched and tempered steel. ASTM A514 grade Q steel plate is known for its high yield strength, weldability, and toughness, even at low temperatures. ASTM A514 steel is a particular type of high strength steel that is primarily used as a structural steel for building construction.
ASTM A514 grade Q steel plate chemical composition:
| C | Mn | P | S | SI | Cr | Mo | V | Ti | B |
| 0.12-0.21 | 0.7-1.0 | ≤0.035 | ≤0.04 | 0.20-0.35 | 0.40-0.65 | 0.15-0.25 | 0.03-0.08 | 0.01-0.03 | 0.001-0.005 |
ASTM A514 grade Q steel plate mechanical property:
| Grade | Thickness | Yield | Tensile | Elongation |
| ASTM A514 | mm | Min Mpa | Mpa | Min % |
| 20 | 690 | 760-895 | 18 | |
| 20-65 | 690 | 760-895 | 18 | |
| 65-150 | 620 | 690-895 | 18 |
ASTM A514 grade Q steel plate application:
ASTM A514 grade Q steel plates are used where a weldable, machinable, very high strength steel is required to save weight or meet ultimate strength requirements.
ASTM A514 grade Q steel plates are most commonly used as structural steel in building construction, for cranes, or other large machines supporting high loads.
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