S275JR Structural Steel (EN 10025): European Standard vs S355J2 Structural Steel: High-Strength European Grade
Side-by-side engineering comparison of S275JR Structural Steel (EN 10025): European Standard (EN 10025-2:2019) and S355J2 Structural Steel: High-Strength European Grade (EN 10025-2:2019). Compare mechanical properties, chemical composition, density, yield strength, international equivalents, and typical applications to select the right material for your project.
Quick Comparison
| Property | S275JR Structural Steel ( | S355J2 Structural Steel: |
|---|---|---|
| Standard | EN 10025-2:2019 | EN 10025-2:2019 |
| Category | Carbon Steel | Carbon Steel |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
| Yield Strength | 275 MPa (40 ksi) | 355 MPa (51 ksi) |
| Tensile Strength | 410-560 MPa (59-81 ksi) | 470-630 MPa (68-91 ksi) |
| Key Applications | <a href="https://ykwiki.com/materials/s275jr/">S275JR</a> is a European hot-rolled structural steel specified under EN 1... | <a href="https://ykwiki.com/materials/s355j2/">S355J2</a> is the most specified high-strength carbon structural steel in... |
International Equivalents
| S275JR Structural St Equivalents | S355J2 Structural St Equivalents |
|---|---|
| ASTM A36 | ASTM A572 Gr50 |
| Q235 | Q355D |
| SS400 | SM490 |
| St44-2 | St52-3 |
| E250 | E355 |
How to Choose
| Choose S275JR Structural Steel ( when... | S275JR is the economical choice for general construction at 275 MPa. |
| Choose S355J2 Structural Steel: when... | S355J2 provides 29% higher yield strength (355 MPa) AND guaranteed -20°C impact toughness—essential for dynamically loaded structures and cold climates. |
Frequently Compared Questions
What is the main difference between S275JR Structural Steel (EN 10 and S355J2 Structural Steel: High-?
S275JR Structural Steel (EN 10025): European Standard (EN 10025-2:2019) provides 275 MPa (40 ksi) yield strength at 7.85 g/cm³ density, while S355J2 Structural Steel: High-Strength European Grade (EN 10025-2:2019) delivers 355 MPa (51 ksi) at 7.85 g/cm³. The choice depends on whether your application prioritizes lower material cost or higher strength and cold-climate toughness.
Can S275JR Structural Steel (EN 10 be substituted for S355J2 Structural Steel: High-?
In many applications, these materials can be cross-referenced, but direct substitution should always be verified against specific project specifications, especially for lower material cost, higher strength and cold-climate toughness, and operating environment. Consult your engineer of record.