| C | Si | Mn | P | S | Cr | Mo | W | V | Co | Ni |
|---|---|---|---|---|---|---|---|---|---|---|
| 1,90- 2,20 | 0,10- 0,60 | 0,20- 0,60 | Max 0,030 | Max 0,030 | 11,00- 13,00 | - | - | - | - | - |
| Hardness after | Tempering ºC | Unit | Value |
| Softening | - | HB | ≤248 |
| Quenching with 970 ºC in oil | - | HRC | 64.5 |
| Quenching with 970 ºC in oil and tempering | 180 | HRC | ≥62 |
| 200 | HRC | 63 | |
| 250 | HRC | 62 | |
| 350 | HRC | 59 | |
| 400 | HRC | 57.5 | |
| 450 | HRC | 56 | |
| 500 | HRC | 54 | |
| 550 | HRC | 51 |
| Property | Unit | Value |
| Density, ρ | g*cm -3 | 7.65 |
| Linear expansivity, α 20-100ºC) | K -1 | 10.2*10 -6 |
| Specific thermal conductivity, λ 20ºC) | W*m -1 *K -1 | 17 |
| Technological treatment processes | Possible application | Temperature, °C | ||
| Forming processes | Forging | + | 1050-850 | |
| Rolling | + | 1050-850 | ||
| Heat treatment | Thermal hardening | Quenching | + | 960-1000 |
| Tempering | + | 170-520 | ||
| Precipitation hardening | Supersaturation | - | - | |
| Ageing | - | - | ||
| Annealing | Softening | + | 820-860 | |
| Stress relieving | + | 600-700 | ||
| Thermochemical treatment | Nitriding | - | - | |
| Other | - | - | ||
| ISO | CEN | Russia | |||
| X210Cr12 | ISO 4957:2004 | X210Cr12 | ISO 4957:2004 | H12 | GOST 5950-73 |
| US | Japan | China | |||
| ~D3 | ASTM A 681-91 | ~SKD 1 | JIS G 4404-1983 | Cr12 | GB 1299-85 |