The Material of 1.4547/254 SMO
The element composition of special metal
| C (%) | ≤0.020 |
| Si (%) | ≤0.70 |
| Mn (%) | ≤1.00 |
| P (%) | ≤0.030 |
| S (%) | ≤0.010 |
| Cr (%) | 19.5-21.5 |
| Mo (%) | 6.00-7.00 |
| Ni (%) | 17.5-18.5 |
| N (%) | 0.18-0.25 |
| Cu (%) | 0.50-1.00 |
| Co (%) | |
| Fe (%) | |
| Ti (%) | |
| Al (%) | |
| Nb (%) | |
| V (%) | |
| B (%) | |
| W (%) |
Mechanical performance
| Hardness HB 30 ≤HB | 250 |
| 0.2% Yield Strength Rp≥N/mm² | 300 |
| Tensile strength Rm≥N/mm² | 650-850 |
| Enlong A5>=% | 35 |
| Modulus of elasticity kN/mm² | 200 |
| Reistant on air up to ℃ | |
| Density g/cm³ | 8 |
| Specific heat capacity J/kg K | 500 |
| Thermal conductivity W/m K | 13 |
| Electrical resistivity Ω mm²/m | 0.85 |