EN 10277-4 Standard
W.NR.: 1.1140/C15R
Special Non-Alloy Case-Hardening Steel
Heat analysis according to the EN 10277-4 standard
| C % | Si % | Mn % | P % | S % | |
| DA | 0,12 | – | 0,30 | – | 0,020 |
| A | 0,18 | 0,40 | 0,60 | 0,035 | 0,040 |
According to the EN 10277-4 standard
| Thickness mm | Rolled + Peeled Rolled ( +SH ) | Cold Drawn ( +C ) | |||
| Hardness HB | Rm (MPa) | Rp0,2 minimum | Rm (MPa) | A5 % | |
| (MPa) | minimum | ||||
| ≥5≤10 | 380 | da 500 a 800 | 7 | ||
| >10≤16 | 340 | da 480 a 780 | 8 | ||
| >16≤40 | da 98 a 178 | da 330 a 600 | 280 | da 430 a 730 | 9 |
| >40≤63 | da 98 a 178 | da 330 a 600 | 240 | da 380 a 670 | 11 |
| >63≤100 | da 98 a 178 | da 330 a 600 | 215 | da 340 a 600 | 12 |
*Delivery condition: as rolled.
Weldability:
It is a soft carbon-steel, easily cold machinable and weldable without any particular precautions.
Improved machinability:
Upon request it can be supplied with improved machinability with Pb (lead) addition, for example
Pb=0,15%÷0,35%
Notes:
CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):
| UNI 7846 | DIN 17210 | ISO 683-11 | AFNOR 35-551 |
| C15 | CK15 | C15M2 | XC12 |