Classification and designation for superalloys and high temperature intermetallic materials
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.06 | ||
| Cr | 18.0 | 21.0 | ||
| Mo | 3.70 | 4.30 | ||
| Ni | 40.0 | 44.0 | ||
| W | 1.80 | 2.20 | ||
| Al | 0.35 | 0.75 | ||
| Ti | 1.80 | 2.20 | ||
| Si | - | 0.60 | ||
| Mn | - | 0.50 | ||
| P | - | 0.020 | ||
| S | - | 0.015 | ||
| B | - | 0.015 | ||
| Ce | - | 0.02 | ||
| Zr | - | 0.05 |
GH2018
| 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) |
|---|---|---|---|---|---|---|
| 248 (≥) | 932 (≥) | 42 | 31 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 123 |
| 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 |
|---|---|---|---|---|---|---|---|
| 176 (≥) | 156 (≥) | 24 | 44 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 332 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 585 | 525 | 233 |
We can customize the production of GH2018 grade, contact us for the best solution.
–sales@specificsteel.com