Iron-based superalloy
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.12 | ||
| Cr | 23.0 | 26.0 | ||
| Ni | 15.0 | 18.0 | ||
| B | - | 0.01 | ||
| Mn | 5.0 | 7.0 | ||
| Si | - | 1.0 | ||
| N | 0.30 | 0.45 |
GH1139
| 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) |
|---|---|---|---|---|---|---|
| 747 (≥) | 364 (≥) | 21 | 34 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 421 |
| 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 |
|---|---|---|---|---|---|---|---|
| 885 (≥) | 559 (≥) | 22 | 34 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 212 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 875 | 666 | 128 |
We can customize the production of GH1139 grade, contact us for the best solution.
–sales@specificsteel.com