EN 10277:2018 standard
W.NR.: 1.0503
Non-alloy high-grade steel
heat analysis according to the EN ISO 683-1:2018 standard
| C % | Si % | Mn % | P % | S % | Cr % | Ni % | Mo % | Cu % | Cr+Mo+Ni % | |
| From | 0,42 | 0,10 | 0,50 | – | – | – | – | – | – | – |
| To | 0,50 | 0,40 | 0,80 | 0,045 | 0,045 | 0,40 | 0,40 | 0,10 | 0,30 | 0,63 |
according to the EN 10277:2018 standard
| Thickness mm |
Rolled + peeled rolled ( +SH ) |
Cold drawn ( +C ) |
|||
| hardness HB | Rm (MPa) | Rp0,2 minimum | Rm (MPa) | A5 % | |
| (MPa) | minimum | ||||
| ≥5≤10 | 565 | da 750 a 1050 | 5 | ||
| >10≤16 | 500 | da 710 a 1030 | 6 | ||
| >16≤40 | da 172 a 241 | da 580 a 820 | 410 | da 650 a 1000 | 7 |
| >40≤63 | da 172 a 241 | da 580 a 820 | 360 | da 630 a 900 | 8 |
| >63≤100 | da 172 a 241 | da 580 a 820 | 310 | da 580 a 850 | 8 |
* Delivery condition: as rolled.
Improved machinability:
In order to improve its machinability, this steel grade can be supplied upon request with Pb (lead) addition, for example Pb=0,15%÷0,35%
Weldability:
Due to the medium-high carbon content it can be welded with some precautions.
Hardenability:
It has a low hardenability in water or oil; fit for surface hardening that gives this steel grade a high hardness of the hardened shell.
Notes:
CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):
| UNI 7845 | DIN 17200 | AISI-SAE | AFNOR 35-552 |
| C45 | C45 | 1045 | AF65C45 |