A514 Grade Q is a type of high-strength, hot-rolled quenched and tempered alloy steel that falls under the ASTM A514 specification. It is specifically designed to possess excellent strength and toughness properties.
The "Gr Q" designation indicates that this steel grade has a specified minimum yield strength of 100 ksi (690 MPa) and a minimum tensile strength of 110-130 ksi (760-895 MPa). This high-strength property makes it suitable for applications where heavy loads and harsh conditions are present.
A514 Gr.Q steel plate has high yield strength and tensile strength, which is superior to ordinary carbon steel and is suitable for engineering projects requiring high strength. A514 Gr.Q steel plates are widely used in construction, machinery manufacturing, mining equipment, transportation equipment and other fields, especially in the manufacture of key components of heavy machinery and equipment.

A514 Gr.Q Steel Plate Specifcation
Standard:ASTM A514
Grade:Q
Thickness:6mm- 300mm
Width:1500mm - 4050mm
Length: 3000mm - 15000mm
Note:other sizes may be available for special orders.Feel free to contact us for more info.

A514 Gr.Q Steel Composition
| 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 |
A514 Gr.Q Steel Plate Mechnical Properties
| Thickness (mm) | Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% |
| 50mm | |||
| T≤65 | 690 | 760-895 | 18 |
| 65<T | 620 | 690-895 | 16 |

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