Cold drawn EN 10277:2018 standard
W.NR.: 1.7220
Special alloy steel
analysis according to the EN ISO 683-2:2018 standard
| C % | Si % | Mn % | P % | S % | Cr % | Mo % | Cu % | |
| From | 0,30 | 0,10 | 0,60 | – | – | 0,90 | 0,15 | – |
| To | 0,37 | 0,40 | 0,90 | 0,025 | 0,035 | 1,20 | 0,30 | 0,40 |
according to the EN 10277:2018 standard (not provided for)
| Thickness mm | annealed + cold drawn |
| ( +A+C ) | |
| hardness HB max | |
| ≥5≤10 | – |
| >10≤16 | – |
| >16≤40 | – |
| >40≤100 | – |
* Delivery condition: soft annealed.
Weldability:
Low weldability; this steel grade can be welded only with suitable precautions.
Hardenability:
Steel grade with medium carbon content showing a poor hardenability; sensitive to notching and to quenching cracks.
Notes:
CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication) :
| UNI 7845 | DIN 17200 | AFNOR 35-552 | AISI-SAE |
| 35CrMo4 | 34CrMo4 | 34CD4 | 4135 |