S355JR material is a non-alloy structural steel defined in EN10025-2 standard. What is S355JR meaning? The first letter “S” means structural steel, that implies S355JR material is extensively utilized in the structural engineering. “355” represents yield strength i.e. 355 N/mm² minimally, and “JR” addition ensures that S355JR material has been subjected to 20 deg. temperature impact test.
EN10025-2 S355JR material chemical composition: (max) %
Grade | C% | Si % | Mn % | P % | S % | N % | Cu % |
S355JR | 0.270 | 0.600 | 1.700 | 0.045 | 0.045 | 0.014 | 0.060 |
EN10025-2 S355JR material mechanical properties:
Grade | Thickness (mm) | Min Yield (Mpa) | Tensile (Mpa) | Elongation (%) | Min Impact Energy | |
S355JR | 8mm-100mm | 315Mpa-355Mpa | 450-630Mpa | 18-20% | 20 | 27J |
101mm-200mm | 285 Mpa -295Mpa | 450-600Mpa | 18% | 20 | 27J | |
201mm-400mm | 275Mpa | - | 17% | 20 | 27J | |
The min impact energy is longitudinal energy |
As the name suggests, EN10025-2 S355JR material is an important material supply for construction industries. S355JR material is usually for freight cars, transmission towers, dump trucks, cranes, trailers, bull dozers, excavators and so on structural applications.