S275 / Equivalents
Is it really S275? 1 “equivalents” checked
Cross-reference tables pair grades by name and history. Here each pairing is judged on the minimum values each standard guarantees, with the sources for both sides.
Same strength class; guaranteed values agree within a few MPa. Still check thickness bands and impact quality.
Same class of steel, but at least one guaranteed value is lower or tested differently. Recheck the design.
300WCSA
Commonly listed as an equivalent, but the guaranteed values do not support substitution.
Side by side
| Grade | Standard | Min. yield at 10 mm | Tensile at 10 mm | Match | What differs |
|---|---|---|---|---|---|
| S275 |  EN 10025-2:2019 | ≥ 275MPa5 | 410–560MPa5 | — | Reference grade. |
| 300W | CSA G40.21 | ≥ 300MPa1 | 450–620MPa1 | Approximate | Yield 300 MPa (44 ksi), above S275; tensile 450–620 MPa. 44W is the imperial name. |