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 | 1.00 | 1.50 | ||
| P | - | 0.035 | ||
| S | - | 0.035 | ||
| Cr | - | 0.40 | ||
| Ni | - | 0.40 | ||
| Mo | - | 0.10 | ||
| Al | - | 0.020 | ||
| Cr+Ni+Mo | - | 0.020 |
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) |
|---|---|---|---|---|---|---|
| 173 (≥) | 739 (≥) | 42 | 41 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 |
| 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 |
|---|---|---|---|---|---|---|---|
| 979 (≥) | 232 (≥) | 12 | 24 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 688 | 414 | 393 |
We can customize the production of 25Mn5 grade, contact us for the best solution.
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