Compare / Grade 350 vs S355
Grade 350 vs S355
AS/NZS 3678:2016 · Steel
Australian and New Zealand plate grade: 360 MPa yield up to 12 mm, 450 MPa minimum tensile.
EN 10025-2:2019 · Steel
Europe's workhorse structural steel: 355 MPa minimum yield up to 16 mm, 470–630 MPa tensile from 3 to 100 mm.
ApproximateYield bands differ (360 MPa up to 12 mm, then 350 and 340). Minimum tensile 450 MPa, below S355's 470.
Mechanical
| Property | Condition | Grade 350 | S355 | Difference |
|---|---|---|---|---|
| Yield strength ReH | t = 12 mm | ≥ 360MPa2 | ≥ 355MPa3 | −1.4 % |
| t = 16 mm | ≥ 350MPa2 | ≥ 355MPa3 | +1.4 % | |
| t = 20 mm | ≥ 350MPa2 | ≥ 345MPa3 | −1.4 % | |
| t = 40 mm | ≥ 340MPa2 | ≥ 345MPa3 | +1.5 % | |
| t = 50 mm | ≥ 340MPa2 | ≥ 335MPa2 | −1.5 % | |
| Tensile strength Rm | t = 3 mm | ≥ 450MPa2 | 510–680MPa3 | +13 % |
| t = 100 mm | ≥ 450MPa2 | 470–630MPa5 | +4.4 % | |
| t = 150 mm | ≥ 450MPa2 | 450–600MPa2 | same | |
| t = 250 mm | ≥ 450MPa2 | 450–600MPa1 | same | |
| t = 400 mm | ≥ 450MPa2 | 450–600MPa1 | same | |
| Elongation after fracture A | t = 25 mm | ≥ 20%1 | ≥ 22%1 | +10 % |
Rows are matched by condition (thickness band, temperature, product form). A dash means the grade has no sourced value for that condition. Differences are S355 relative to Grade 350; for ranges the lower bound is compared.