EN 10277-4 Standard
W.NR.: 1.5715/16NiCrS4Pb
Special Alloy Case-Hardening Steel
Heat analysis according to the EN 10277-4 standard
| C % | Si % | Mn % | P % | S % | Cr % | Ni % | Pb % | |
| DA | 0,13 | – | 0,70 | – | 0,020 | 0,60 | 0,80 | 0,15 |
| A | 0,19 | 0,40 | 1,00 | 0,025 | 0,040 | 1,00 | 1,10 | 0,35 |
According to the EN 10277-4 standard
| Thickness mm | Soft Annealed* + Peeled Rolled (+A +SH ) | Soft Annealed* + Cold Drawn ( +A+C ) |
| Hardness maximum Values HB | Hardness Maximum Values HB | |
| ≥5≤10 | – | 270 |
| >10≤16 | – | 260 |
| >16≤40 | 217 | 255 |
| >40≤63 | 217 | 255 |
| >63≤100 | 217 | 255 |
* Delivery condition: subjected to a softening treatment according to the maximum hardness prescription.
Good machinability in the annealed condition and good aptitude / endurance to heat treatment; this steel grade undergoes heat treatment without important deformations.
Hardenability:
It has a low-medium hardenability enabling the use, with good core resistance, till a thickness of about 50 mm.
Notes:
CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):
| UNI 7846 | EN 10084 | AISI – SAE |
| 16CrNi4 | 16NiCrS4 | 3115 |