Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 4: Spring steels and other applications
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 1.20 | 1.30 | ||
| Si | 0.15 | 0.30 | ||
| Mn | 0.25 | 0.40 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 0.30 | 0.40 | ||
| Mo | - | - | ||
| V | - | - |
Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 4: Spring steels and other applications
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 774 (≥) | 836 (≥) | 32 | 41 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 114 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 153 (≥) | 561 (≥) | 22 | 12 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 115 | 768 | 563 |
We can customize the production of 125Cr2 grade, contact us for the best solution.
–sales@specificsteel.com