Steel with a very low carbon content, intended for the cold forming of very deformed and difficult-to-obtain small parts.
Standard Reference: EN 10263-2: 2017
| EUROPE | ITALY | GERMANY | FRANCE | UK | USA | ||
|---|---|---|---|---|---|---|---|
| EN 10263-2: 2001 | (UNI 7356 - 74) | (DIN 1654-2:89) | (NFA35-564:83) | - | ASTM | ||
| Grade | N° | Werkstoff | N° | ||||
| C4C | 1.0303 | CB4FF | QSt32-3 | - | XC6FF | - | - |
| C | Si/max | Mn | P/max | S/max | Al |
|---|---|---|---|---|---|
| 0,02÷0,06 | 0,10 | 0,25÷0,40 | 0,020 | 0,025 | 0,020÷0,060 |
| Size (mm) |
Untreadted (+U) or Untreadted + Peeled (+U +PE) |
Spheroidized (+AC) or as Treated + Peeled (+AC +PE) |
Cold Drawn (+U +C) |
Cold Drawn + Spheroidized + Skin Passed (+U +C +AC + LC) |
Spheroidized + Cold Drawn (+AC +C) |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rm (MPa) max | Z (%) min | Rm (MPa) max | Z (%) min | Rm (MPa) max | Z (%) min | Rm (MPa) max | Z (%) min | Rm (MPa) max | Z (%) min | ||
| 2≤d≤5 | - | - | - | - | - | - | 242 | 73 | - | - | |
| 5<d≤10 | 390 | 70 | 330 | 75 | 470 | 66 | 238 | 73 | 410 | 70 | |
| 10<d≤40 | 390 | 70 | 330 | 75 | 460 | 66 | 222 | 73 | 400 | 70 | |
| 40<d≤100 | 390 | 70 | 330 | 75 | - | - | 184 | - | - | - | |
| Operation | °C |
|---|---|
| Hot forgings deformation | 800÷1100 |
| Soft annealing | 650÷700 |
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