Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.38 | 0.44 | ||
| Si | - | 0.30 | ||
| Mn | 0.60 | 0.90 | ||
| P | - | 0.025 | ||
| S | - | 0.025 | ||
| Cr | 0.70 | 0.90 | ||
| Ni | 0.65 | 2.00 | ||
| Mo | 0.15 | 0.30 | ||
| Cu | - | 0.25 |
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) |
|---|---|---|---|---|---|---|
| 338 (≥) | 355 (≥) | 13 | 12 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 132 |
| 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 |
|---|---|---|---|---|---|---|---|
| 753 (≥) | 459 (≥) | 22 | 43 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 123 | 477 | 584 |
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