EN 10277-5 Standard
W.NR.: 1.7227/42CrMoS4
Special Alloy Steel
Analysis according to the EN 10277-5 standard
| C % | Si % | Mn % | P % | S % | Cr % | Mo % | |
| From | 0,38 | – | 0,60 | – | 0,020 | 0,90 | 0,15 |
| To | 0,45 | 0,40 | 0,90 | 0,025 | 0,040 | 1,20 | 0,30 |
According to the EN 10277-5 standard
| Thickness mm | Annealed + Cold Drawn |
| ( +A+C ) | |
| Hardness HB max | |
| ≥5≤10 | 300 |
| >10≤16 | 290 |
| >16≤40 | 285 |
| >40≤63 | 280 |
| >63≤100 | 280 |
* Delivery condition: soft annealed.
Weldability:
Bad weldability due to the high crack danger.
Hardenability:
Medium-good hardenability, suitable for hot purposes till a temperature of 500°.
It can be hardened in oil.
Notes:
CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):
| UNI 7845 | DIN 17200 | ISO 683-1 | AFNOR 35-552 | AISI-SAE |
| 42CrMo4 | 42CrMoS4 | 42CrMoS4 | 42CD4u | 4140 |