EN10025-S355
EN10025 (S355) Engineering steel
EN10025 grade steel is a medium tensile, low carbon manganese steel which is readily weldable and possesses good impact resistance (also in sub-zero temperatures).
This material is commonly supplied in the untreated or normalised condition. Machinability is similar to that of mild steel.
This grade was first specified as the European EN10025 standard and later published by the British Standards Institute as BS EN 10025, S355, S355J2 and S355J2+N. These superseded the BS4360.
Steel stock range
High Peak Steels stock EN10025 in round bar.
Associated standards
UK Standard EN10025 | European Grades EN14A | 150M19
EN10025 (S355) Black
| Product | Min size | Max size |
|---|---|---|
 | 20mm dia | 330mm dia |
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EN10025 (S355) Chemical Composition
| C | Si | Mn | S | P | Cr | Ni | Mo | |
|---|---|---|---|---|---|---|---|---|
| Min | ||||||||
| Max | 0.22 | 0.55 | 1.6 | 0.03 | 0.03 |
EN10025 (S355) Mechanicals
| Unit | Size Range mm | Yield N/mm2 | 0.2% proof N/mm2 | UTS (Rm) N/mm2 | Elong (A) % | Red of Area (Z) % | Hardness HB | Impact test (KV) J |
|---|---|---|---|---|---|---|---|---|
| Normalised (min) | S355J2+N 16mm dia | 345 | 470 | 22 | 27 | |||
| Normalised (max) | S355J2+N 40mm dia | 630 | ||||||
| Normalised (min) | S355J2+N 100mm dia | 295 | 450 | 18 | 27 | |||
| Normalised (max) | S355J2+N 150mm dia | 600 | ||||||
| Normalised (min) | S355J2G3 250mm dia | 265 | 400 | 23 | 25 | |||
| Normalised (max) | S355J2G3 500mm dia |
EN10025 (S355) Typical applications
- Welded structures
- Construction
- Bridge components