A carbon steel in accordance with US standards, it has a very high resilience even at low temperatures. Used for flanges, fittings, and construction in general.
Standard Reference: ASTM A 105
| EUROPE | ITALY | GERMANY | FRANCE | UK | USA | ||
|---|---|---|---|---|---|---|---|
| EN 10083-3: 2006 | (UNI 7845-78) | (DIN 17200-86) | (NF A 35-552-86) | (BS 970 pt. 1 - 96) | ASTM | ||
| Grade | N° | Werkstoff | N° | ||||
| 21CrMoV5-7 | 1.7709 | - | - | - | - | - | A105 |
| C | Si | Mn | P/max | S/max | Cr/max | Mo/max | Ni/max | Cu/max | V/max |
|---|---|---|---|---|---|---|---|---|---|
| 0,35 | 0,10 ÷ 0,35 | 0,60÷1,05 | 0,035 | 0,040 | 0,30 | 0,12 | 0,40 | 0,40 | 0,08 |
| Size (mm) |
Rp 0,2 (MPa) min |
Rm (MPa) min |
A4 (%) min |
Z (%) min |
Hardness max |
|
|---|---|---|---|---|---|---|
| d≤105 | 250 | 485 | 22 | 30 | 187 | |
| Operation | °C |
|---|---|
| Hot forgings deformation | 900÷1150 |
| Soft annealing | 650÷700 |
