EN 10137 S620Q high yield strength structural steel
S620QL low alloy steel material is a high strength fine grain structural steel that complies with European standard EN 10025-6.
S620QL high strength steel has good welding properties and can be welded by a variety of welding methods, such as manual arc welding, gas shielded welding (GMAW, GTAW), etc.
S620QL high strength low alloy steel plate can be used for high-rise buildings, large steel structure projects, main beams and supporting structures of large span bridges, etc.
Chemical composition % of steel S620Q (1.8914) low alloy steel
| 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 |
Mechanical properties of steel S620Q (1.8914) high strength low alloy steel
| Nominal thickness (mm): | 3 - 100 | 100 - 150 |
| Rm - Tensile strength (MPa) | 700-890 | 650-830 |
| Nominal thickness (mm): | 3 - 50 | 50 - 100 | 100 - 150 |
| ReH - Minimum yield strength (MPa) | 620 | 580 | 560 |
| KV - Impact energy (J) longitud., | 0° 40 |
-20° 30 |
| A - Min. elongation Lo = 5,65 √ So (%) | 15 |
