Creep resisting steels, nickel and cobalt alloys
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Cr | 13.50 | 16.00 | ||
| Ni | 24.00 | 27.00 | ||
| Mo | 1.00 | 1.50 | ||
| Ti | 1.75 | 2.30 | ||
| V | 0.10 | 0.50 | ||
| B | 0.001 | 0.010 | ||
| Mn | 1.00 | 2.00 | ||
| Fe | - | Bal | ||
| Al | - | 0.40 | ||
| Si | - | 1.00 | ||
| P | - | 0.030 | ||
| S | - | 0.020 |
Note: a cold pull rods, round cakes and ring blank standard (Ti) 1.80% ~ 2.35%.
2 (B) of hot-rolled and cold-rolled sheet standard 0.003% ~ 0.010%, 2.00% or less (Mn), (P) acuities were 0.020%, 0.015% or less (S).
3 (Al) of cold drawn wire standard acuities were 0.35%, 1.75% ~ 2.35% (Ti) and (Si) 0.40% ~ 1.00%, 0.020% or less (P), (S) of 0.015% or less.
Use the wire, cold heading standards (Ti) 1.75% ~ 2.35%, 0.40% ~ 1.00% (Si), (P) acuities were 0.025%, 0.020% or less (S).
5 hot rolled and forged bar standard (Cu) of 0.25% or less.
1.5), heat treatment system is the standard heat treatment system are shown in table 1-3;Alloy is 900 ℃ heat treatment system plus or minus 10 ℃, 1 to 2 h, oil cooled to + 750 ℃ + 10 ℃, 16 h, air cooling.
| 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) |
|---|---|---|---|---|---|---|
| 457 (≥) | 919 (≥) | 13 | 41 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 |
| 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 |
|---|---|---|---|---|---|---|---|
| 628 (≥) | 679 (≥) | 13 | 42 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 314 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 265 | 466 | 778 |
We can customize the production of 1.4980 grade, contact us for the best solution.
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