| Steel designation | Chemical composition, % by mass | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steel Name | Steel Number | C | Si max. | Mn | P max. | S | Cr | Cu | Mo | Nb | Ni | Others | |
| X5NiCrTiMoVB25-15-2 | 1.4606 | ≤ 0,08 | 1,00 | 1,00 to 2,00 | 0,025 | ≤ 0,015 | 13,0 to 16,0 | - | 1,00 to 1,50 | - | 24,0 to 27,0 | B: 0,0010 to 0,010 Al: ≤ 0,35 Ti: 1,90 to 2,30 V: 0,10 to 0,50 | |
| Steel designation | Thickness t or diameter a d | Heat treatment conditionb | Hardness c | 0,2 %-proof strength | Tensile strength | Elongation after fracture | Impact energy (ISO-V) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Steel Name | Steel Number | mm max. |
HB max. |
Rp0,2 MPa*) min. |
R m MPa*) |
A % min. (long.) |
KV J min (long.) |
||||||
| Special grades | |||||||||||||
| X5NiCrTiMoVB25-15-2 | 1.4606 | 50 | +AT | 212 | 250 | max. 700 | 35 | - | |||||
| +P880 | - | 550 | 880 to 1150 | 20 | 40 | ||||||||
| a Width across flats for hexagons. | |||||||||||||
| b +AT = solution annealed; +P = precipitation hardened. | |||||||||||||
| c Only for guidance. | |||||||||||||
| d For spring hard drawn condition see EN 10270-3. | |||||||||||||
| *) 1MPa = 1 N/mm². | |||||||||||||