| Material number | 1.0143 |
| Designation | S275J0 |
| Alternative designation | S275J0 |
| Former designation | St44-3U |
| Common name | St 44-3 |
| Standard | EN 10025-2 |
| Category | Unlegierter Baustahl |
| Material group (EN ISO) | 1.2 |
| Density | 7,85 g/cm³ |
| Magnetism | ja |
| Equivalent grades | ST44-3U |
| C | ≤ 0,18 |
| Mn | ≤ 1,50 |
| P | ≤ 0,03 |
| S | ≤ 0,03 |
| N | ≤ 0,01 |
| Cu | ≤ 0,55 |
| Yield strength Re (min) | 275 N/mm² |
| Tensile strength Rm | 410–560 N/mm² |
| Elongation at break A (min) | 23 % |
| Impact energy KV | ≥ 27 J |
| Young's modulus | 210 GPa |
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