S450J0
1.0590Higher-strength structural steel with 450 MPa yield, 0°C impact. Bridges the gap between S355 and S460 in the EN 10025-2 series. Used for heavily loaded structures, crane components, and building steelwork where S355 is insufficient but normalized fine-grain (EN 10025-3) is not required.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | S450J0 | 1.0590 | 100% |
Sources: EN 10025-2:2019
Chemical composition comparison (wt%)
Side-by-side: S450J0 (EN 10025-2) vs S450J0 (EN) (EN 10025-2:2019)
| Element | S450J0 (EN 10025-2) | S450J0 (EN) | Overlap |
|---|---|---|---|
| C | — | 0–0.2% | — |
| Si | — | 0–0.55% | — |
Mechanical properties
Compatibility verdict
S450J0 and S450J0: 100% composition match
Related materials
C45
1.0503Medium carbon unalloyed quality steel. Good machinability and moderate strength after heat treatment. Widely used for shafts, spindles, pins, studs, and general machine parts.
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).
S235JR
1.0038General-purpose structural steel with minimum yield strength of 235 MPa. The most common structural steel grade in Europe for general construction, frames, and non-critical structural applications.
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