S355ML
1.8834Thermomechanically rolled fine-grain structural steel — ReH >=355 MPa with Charpy at -50°C (KV >=27J). THE workhorse for large welded steel structures in cold environments. TM rolling = low CEV = excellent weldability even in thick plate. Used for offshore platforms, wind turbine towers, bridges, crane structures, and pressure vessels. Most common TM grade by tonnage.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | S355ML / 1.8834 | 1.8834 | 100% |
Sources: EN 10025-4
Chemical composition comparison (wt%)
Side-by-side: S355ML (EN 10025-4) vs S355ML / 1.8834 (EN) (EN 10025-4)
| Element | S355ML (EN 10025-4) | S355ML / 1.8834 (EN) | Overlap |
|---|---|---|---|
| C | — | 0–0.14% | — |
| Si | — | 0–0.5% | — |
Mechanical properties
Compatibility verdict
S355ML and S355ML / 1.8834: 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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