GH4220
China GBT GH4220 wrought Fe/Ni-base superalloy and GH4220 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Special Alloy | GH4220 | GBT | China | wrought Fe/Ni-base superalloy |
| GH4099 | |||||
| GH4105 | |||||
| GH4133 | |||||
| GH4133B | |||||
| GH4141 | |||||
| GH4145 | |||||
| GH4163 | |||||
| GH4169 | |||||
| GH4199 | |||||
| GH4202 |
Chemical composition(mass fraction)(wt.%) of the GH4220
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Mo(％) | V(%) | W(%) | Cu(%) | Co(%) | B(%) | Nb(%) | Al(%) | Ti(%) | Mg(%) | Fe(%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.08 | 0.35 | 0.50 | 0.015 | 0.009 | 9.00-12.00 | 5.00-7.00 | 0. 250-0.800 | 5.00-6. 50 | 0.070 | 14.00-15.50 | ≤0.020 | – | 3. 90 -4. 80 | 2+20-2. 90 | ≤0.010 | ≤3.00 |
Mechanical Properties of steel grade GH4220
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 594 (≥) | 177 (≥) | 22 | 43 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 |
Physical Properties of steel grade GH4220
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 24 | – | – | 0.43 | – | |||
| 568 | 164 | – | 44.3 | 343 | – | ||
| 576 | – | 31 | 14.2 | 124 | 422 |
Heat Treatment of steel grade GH4220
Heat treated : 1835°C – 1693°C
Technological Curves of steel grade GH4220
No Curve