EN10149 S420NC steel plate/sheet, EN10149 S420NC steel plate/sheet, under EN standard, we can regard S420NC steel plate/sheet as high strength steels for cold-forming, normalised steel.
S420NC steel Chemical composition %
| C | Si | Mn | P | S | V | Nb | Ti | Al |
| max 0.2 | max 0.5 | max 1.6 | max 0.025 | max 0.015 | max 0.1 | max 0.09 | max 0.15 | min 0.015 |
S420NC steel Technological 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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