S355J2G3 steel is a carbon manganese steel. It is characterised by its excellent strength and weldability. S355J2G3 is a non-alloy structural steel according to EN10025:1990.
S355J2G3 steel Chemical composition
| C(％) | Si(％) | Mn(％) | P(％) | S(％) |
| 0.20 | 0.55 | 1.60 | 0.035 | 0.035 |
S355J2G3 steel Mechanical properties
| Annealing hardness HBS |
Cold pull hardness HBS |
Preheating temperature ℃ |
Quenching temperature ℃ |
Holding time min |
Hardening medium | Temper temperature ℃ |
After tempering hardness ≥HRC |
|
| salt-bath furnace | controlled atmosphere furnace | |||||||
| 235 | 262 | 788 | 1191 | 1204 | 5～15 | air cooling | 522 | 60 |
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