Compare / S275 vs 300W
S275 vs 300W
EN 10025-2:2019 · Steel
Structural steel with 275 MPa minimum yield up to 16 mm, 410–560 MPa tensile.
CSA G40.21 · Steel
Canada's most common merchant structural grade: 300 MPa (44 ksi) yield, 65–90 ksi tensile.
ApproximateYield 300 MPa (44 ksi), above S275; tensile 450–620 MPa. 44W is the imperial name.
Mechanical
| Property | Condition | S275 | 300W | Difference |
|---|---|---|---|---|
| Yield strength ReH | t = 16 mm | ≥ 275MPa3 | ≥ 300MPa1 | +9.1 % |
| t = 40 mm | ≥ 265MPa3 | ≥ 300MPa1 | +13 % | |
| t = 63 mm | ≥ 255MPa2 | ≥ 300MPa1 | +18 % | |
| t = 63.5 mm | ≥ 245MPa2 | ≥ 300MPa1 | +22 % | |
| t = 80 mm | ≥ 245MPa2 | ≥ 275MPa1 | +12 % | |
| t = 100 mm | ≥ 235MPa2 | ≥ 275MPa1 | +17 % | |
| t = 101.6 mm | ≥ 225MPa2 | ≥ 275MPa1 | +22 % | |
| Tensile strength Rm | t = 3 mm | 430–580MPa1 | 450–620MPa1 | +4.7 % |
| t = 100 mm | 410–560MPa3 | 450–620MPa1 | +9.8 % | |
| t = 150 mm | 400–540MPa1 | 450–620MPa1 | +13 % | |
| t = 250 mm | 380–540MPa1 | 450–620MPa1 | +18 % |
Rows are matched by condition (thickness band, temperature, product form). A dash means the grade has no sourced value for that condition. Differences are 300W relative to S275; for ranges the lower bound is compared.