Specification for austenitic chromium-nickel steel wire and springs
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.15 | ||
| Si | 0.20 | 1.00 | ||
| Mn | 0.50 | 2.00 | ||
| P | - | 0.035 | ||
| S | - | 0.025 | ||
| Cr | 17.00 | 19.00 | ||
| Ni | 7.50 | 9.00 | ||
| Mo | - | - | ||
| Nb/Ti | - | - |
Specification for austenitic chromium-nickel steel wire and springs
| 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) |
|---|---|---|---|---|---|---|
| 949 (≥) | 614 (≥) | 12 | 43 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 |
| 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 |
|---|---|---|---|---|---|---|---|
| 717 (≥) | 368 (≥) | 12 | 12 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 544 | 734 | 733 |
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