Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.17 | 0.23 | ||
| Si | - | 0.40 | ||
| Mn | 0.35 | 0.75 | ||
| P | - | 0.020 | ||
| S | - | 0.020 | ||
| Cr | 0.90 | 1.20 | ||
| Ni | - | 0.20 | ||
| Mo | 0.90 | 1.10 | ||
| Ti | 0.07 | 1.50 | ||
| V | 0.60 | 0.80 | ||
| Al | 0.015 | 0.080 | ||
| As | - | 0.20 | ||
| B | 0.001 | 0.010 | ||
| Cu | - | 0.20 | ||
| Sn | - | 0.20 |
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) |
|---|---|---|---|---|---|---|
| 512 (≥) | 611 (≥) | 21 | 24 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 424 |
| 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 |
|---|---|---|---|---|---|---|---|
| 521 (≥) | 361 (≥) | 14 | 31 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 241 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 631 | 295 | 859 |
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