Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | - | 0.50 | ||
| Mn | - | 1.00 | ||
| P | - | 0.020 | ||
| S | - | 0.015 | ||
| Cr | 14.00 | 17.00 | ||
| Ni | 70.00 | - | ||
| Mo | - | - | ||
| Ti | 1.80 | 2.70 | ||
| Co | - | 1.00 | ||
| Al | 0.40 | 1.00 | ||
| Fe | 5.00 | 9.00 | ||
| Cu | - | 0.50 | ||
| Nb+Ta | 0.70 | 1.20 |
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
| 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) |
|---|---|---|---|---|---|---|
| 743 (≥) | 516 (≥) | 13 | 42 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 233 |
| 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 |
|---|---|---|---|---|---|---|---|
| 969 (≥) | 993 (≥) | 31 | 11 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 256 | 219 | 143 |
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