For EN 10025 S690QL steel, "S" means structural steel, "Q" refers to the delivery condition is quenched and tempered, and "L" means that the average minimum values for impact energy have been defined at a temperature of –40°C. Do you know EN 10025 S690QL mechanical properties?
EN 10025 S690QL mechanical properties:
| Grade | Mechanical Property | ||||||
| S690QL | Yield Strength mm Min（Mpa） |
Tensile Strength mm Min（Mpa） |
Elongation Min,% | ||||
| ≥3 ≤ 50 | ＞ 50 ≤ 100 | ＞ 100 ≤ 150 | ≥3≤50 | ＞50 ≤ 100 | ＞100≤ 150 | ||
| 690 | 650 | 630 | 770-940 | 760-930 | 710-900 | 14 | |
EN 10025 S690QL mechanical properties indicate S690QL steel has higher payload capacity and are energy efficient, hence can be used in leaner structures. EN 10025 S690QL steel can be easily welded and fabricated but its high yield strength and tensile strength compared with mild steel means that it should be treated with some caution.
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