S620Q High Tensile Strength Steel Plate
S620Q low alloy high strength steel plate, S is the symbol of structural steel, 620 represents the specified minimum yield strength when the thickness is less than 50 mm, expressed in MPa1, and Q represents the quenched and tempered delivery state.
If you are satisfied with our S620Q hsla structural steel, welcome to place an order with us. As one of the best low alloy steel plates manufacturers and suppliers in China, we have a large number of hot-selling products for you to choose from. For detailed chemical composition and free samples, please contact our factory immediately. We provide competitive prices and good services.
S620Q High Strength Steel Plate chemical composition
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Cu | Zr | B | CEV |
| max 0.2 | max 0.8 | max 1.7 | max 2 | max 0.025 | max 0.015 | max 1.5 | max 0.7 | max 0.12 | max 0.015 | max 0.06 | max 0.05 | max 0.5 | max 0.15 | max 0.005 | max 0.83 |
S620Q Low Alloy Steel Plate Mechanical property
|
Grade |
Mechanical Property |
||||||
|
S620Q |
Yield Strength |
Tensile Strength |
Elongation
|
||||
|
≥ |
＞ |
＞ |
≥ |
＞ |
＞ |
||
|
620 |
580 |
560 |
700-890 |
650-830 |
15 |
||
S620Q HSLA Structural Steel Plate thermal property
| Property | Temperature | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|---|
|
Coefficient of thermal expansion |
100 °C |
1.2e-05 1/K |
quenched and tempered (+QT) |
EN 10025-6, EN 10137-2 |
Flat |
|
Specific heat capacity |
20 °C |
430 J/(kg·K) |
quenched and tempered (+QT) |
EN 10025-6, EN 10137-2 |
Flat |
|
Thermal conductivity |
20 °C |
40 W/(m·K) |
quenched and tempered (+QT) |
EN 10025-6, EN 10137-2 |
Flat |
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