S235J2
1.0117Basic structural steel with guaranteed -20°C impact toughness. The toughest variant in the S235 family (J2 = 27J at -20°C). Used for welded structures in moderately cold environments, general structural fabrication, and applications where S235JR's 20°C impact is insufficient.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | S235J2 | 1.0117 | 100% |
| 🇪🇺 | DIN | Europe | St 37-3 U (old) | — | 95% |
Sources: EN 10025-2:2019, DIN 17100
Chemical composition comparison (wt%)
Side-by-side: S235J2 (EN) (EN 10025-2:2019) vs St 37-3 U (old) (DIN)
| Element | S235J2 (EN) | St 37-3 U (old) (DIN) | Overlap |
|---|---|---|---|
| C | 0–0.17% | — | — |
| Mn | 0–1.4% | — | — |
| P | 0–0.025% | — | — |
| S | 0–0.025% | — | — |
| N | 0–0.012% | — | — |
Mechanical properties
General
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 360–510 | MPa |
| Yield Strength | ≥ 235 | MPa |
| Elongation | ≥ 26 | % |
| Elastic Modulus | ≥ 210 | GPa |
| Density | ≥ 7.85 | g/cm3 |
Compatibility verdict
S235J2 and St 37-3 U (old): 95% composition match
Close equivalents but NOT identical.
Related materials
S355JR
1.0045High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
S690QL
1.8928High-strength quenched and tempered fine-grain structural steel with minimum yield strength of 690 MPa. Used for heavily loaded structures like mobile cranes, mining equipment, bridges, and pressure vessels.
S275JR
1.0044Medium-strength structural steel with minimum yield strength of 275 MPa. Bridges the gap between S235JR and S355JR. Used for general structural applications, lattice towers, masts, and light crane components. Impact tested at +20°C (JR).
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