Grade guide · MS / CS & Alloy Steel
S275JR: properties, composition, uses and standards
Short answer
S275JR is a non-alloy structural steel, chosen for general structures, frames and fabrication., density 7.85 g/cm³.
What is S275JR?
S275JR is a non-alloy structural steel. Engineers choose it for general structures, frames and fabrication. It is also known as EN 10025-2 S275JR, W.Nr 1.0044, Structural steel.
- Designation
- S275JR
- Also called
- EN 10025-2 S275JR · W.Nr 1.0044 · Structural steel
- Standard
- EN 10025-2 for S275JR
- Density
- 7.85 g/cm³
- Melting range
- 1420 – 1530 °C
- Magnetic
- Magnetic
Chemical composition
| Element | Weight % |
|---|---|
| Carbon | 0.21 max (≤16 mm) |
| Manganese | 1.50 max |
| Phosphorus | 0.035 max |
| Sulphur | 0.035 max |
| Copper | 0.55 max |
| Nitrogen | 0.012 max |
Per EN 10025-2 for S275JR.
Mechanical properties
| Property | Value |
|---|---|
| Yield strength | 275 MPa (≤16 mm) |
| Tensile strength | 410 – 560 MPa |
| Elongation | 23% |
| Charpy impact | 27 J at +20 °C |
Minimum values. Values for pipe, bar and forgings differ slightly — see the product standard.
Where S275JR is used
- Construction. Beams, frames and base plates. Industry →
- Fabrication. General engineering parts. Industry →
Welding S275JR
The matching filler is E7018 / ER70S-6. —.
S275JR standards by product
| Product | Standard |
|---|---|
| S275JR sheet | EN 10025-2 |
| S275JR plate | EN 10025-2 |
| S275JR coil | EN 10025-2 |
| S275JR pipe & tube | EN 10210 hot-finished hollow sections · EN 10219 cold-formed hollow sections |
Buying S275JR: what to specify
- The product standard and the UNS or designation — for example EN 10025-2.
- Size, thickness or schedule, and quantity in pieces and kg or metres.
- Heat-treatment condition where the standard offers a choice.
- Certificate: EN 10204 3.1 as standard, 3.2 if a third party must witness.