S275JR
Data verifiedS275JR is the middle step of the EN 10025-2 structural family, offering about 17% more yield strength than S235JR at a small price premium. It is a common choice where S235 is marginally too weak but S355 is not needed.
Chemical composition
| Element | Content (%) |
|---|---|
| C | ≤0.21 |
| Mn | ≤1.50 |
| P | ≤0.035 |
| S | ≤0.035 |
| Cu | ≤0.55 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Yield strength | ≥275 MPa (≤16 mm) |
| Tensile strength | 410–560 MPa |
| Impact | JR: 27 J at 20 °C |
| Density | 7.85 g/cm³ |
Heat treatment
Supplied hot rolled; no hardening treatment.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.0044 (S275JR) |
| aisi | A572 Gr.42 (near) |
| jis | SS490 (near) |
| gb | Q275 (legacy, near) |
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Bridges, crane girders, machinery frames, medium-duty construction.
Processing: Very good weldability; carbon equivalent stays low enough for standard procedures without preheat in thin and medium plate.
Need S275JR from stock?
Steel.Wiki is sponsored by Shenzhen NewAsia Special Steel (Nasteel), a special-steel stockholder in Shenzhen stocking mold, tool and alloy steels with EN 10204 3.1 certification.
Ask for a quotationVisit NasteelSource: EN 10025-2 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.