Cold drawn EN 10277:2018 standard
W.NR.: 1.0736
High machinability steel not destined to heat treatment
heat analysis according to the EN ISO 683-4:2018 standard
| C % | Si % | Mn % | P % | S % | |
| From | – | – | 1,00 | – | 0,34 |
| To | 0,14 | 0,05 | 1,50 | 0,11 | 0,40 |
according to the EN 10277:2018 standard
| Thickness mm |
Rolled + peeled rolled ( +SH ) |
Cold drawn ( +C ) |
|||
| hardness HB max | Rm (MPa) | Rp0,2 minimum | Rm (MPa) | A5 % | |
| (MPa) | minimum | ||||
| ≥5≤10 | 440 | da 510 a 810 | 6 | ||
| >10≤16 | 410 | da 490 a 760 | 7 | ||
| >16≤40 | 169 | da 380 a 570 | 375 | da 460 a 710 | 8 |
| >40≤63 | 169 | da 370 a 570 | 305 | da 400 a 650 | 9 |
| >63≤100 | 154 | da 360 a 520 | 245 | da 360 a 630 | 9 |
* Delivery condition: as rolled.
Machinability:
This steel grade is marked by a good machinability on machine tools and by an easy fragmentation of chips.
Weldability:
Due to the high sulphur and phophorus content free-cutting steels not destined to heat treatment are not generally recommended for welding.
Notes:
CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):
| UNI 4838 | DIN 1651 | AFNOR 35-561 | EN 10277-3:08 | EN 10087 |
| CF 9 SMn 36 | 9SMn36 | S 300 | 11SMn37 | 11SMn37 |