S355JR is a low-alloy high-strength structural steel in accordance with European Standard EN10025. S355JR steel in China is low-alloy high-strength structural steel, with hardness of 70-80B and yield strength of 300-400MPa
1)Supply Form & Size
| Form of Supply | Size(mm) | Length(mm) |
| Round bar | 6.0mm-1200mm | 2.5m-10m |
2)Chemical Composition&Related Specifications
| Grade | C | Si | Mn | P | S | Cu | N |
| S355JR | ≤0.27 | ≤0.60 | ≤1.70 | 0.045 | 0.045 | ≤0.60 | ≤0.014 |
3)Brand comparison table
| AISI/SAE | DIN/EN | BS | JIS/KS | China |
| Grade 50(345) | S355JR(1.0045) | S355JR(1.0045) | SPFC590 | Q355B |
4)Mechanical Property
| tensile strength σb (MPa) | 460—680 |
| Impact energy Akv (J) | 20℃:≥27 |
