GH4033 (GH33)
Chinesegrade: GH4033 (GH33) superalloy
Foreign grade: ЭЙ437Б, ХН77ТЮР (Russia)
I. Overview of GH4033:
GH4033 is a nickel-chromium-based alloywith the addition of aluminum and titanium to form a γ, to bephase-dispersion-strengthened. It has sufficient high-temperature strength at700 ~ 750 ° C and good oxidation resistance below 900 ° C. The alloy has goodheating performance and mainly besupplied in form of hot-rolled rods and disk blanks. It is usually used inmaking engine rotor parts.
II. Chemicalcomposition: %
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≥ | Ni≥ | Mo≥ | Cu≤ |
0.03-0.08 | 0.65 | 0.35 | 0.015 | 0.007 | 19.0-22.0 | Balance | - | - |
Other | N≤ | Al≤ | Ti≤ | Fe≤ | B≤ | Ce≤ | W≤ | Nb≤ |
- | 0.60-1.00 | 2.40-.80 | 4 | 0.01 | 0.01 | - | - |
III. Physicalproperties:
1. Thermal performance:
(1) Thermal conductivity:
θ/℃ | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 |
λ/(W/(m · C)) | 11.3 | 12.97 | 14.64 | 16.32 | 17.99 | 20.08 | 22.59 | 25.11 | 27.62 |
(2) Linear expansion coefficient:
θ/℃ | 20 ~ 100 | 20 ~ 200 | 20 ~ 300 | 20 ~ 400 | 20 ~ 500 | 20 ~ 600 | 20 ~ 700 | 20 ~ 800 | 20 ~ 900 |
α/10-6C-1 | 11.56 | 12.3 | 13.17 | 13.79 | 14.52 | 15.07 | 15.62 | 16.3 | 17.15 |
2. Density: ρ = 8.2g/c
3. Electrical property: ρ = 1.24 × 10-6Ω ·m
4. Magnetic properties: Non-magnetic
III. Chemicalproperties:
1. Oxidation resistance: Oxidation rateafter 100h test in air medium:
θ/℃ | Oxidation rate/(g/(m3 · h)) | Oxidation rate/(g/(m3 · h)) | Oxidation rate/(g/(m3 · h)) | Oxidation rate/(g/(m3 · h)) |
25h | 50h | 75h | 100h |
|
800 | 0.086 | 0.064 | 0.051 | 0.045 |
900 | 0.212 | 0.171 | 0.133 | 0.118 |
1000 | 0.732 | 0.491 | 0.376 | 299 |
Chinesegrade: GH4033 (GH33) superalloy
Foreign grade: ЭЙ437Б, ХН77ТЮР (Russia)
I. Overview of GH4033:
GH4033 is a nickel-chromium-based alloywith the addition of aluminum and titanium to form a γ, to bephase-dispersion-strengthened. It has sufficient high-temperature strength at700 ~ 750 ° C and good oxidation resistance below 900 ° C. The alloy has goodheating performance and mainly besupplied in form of hot-rolled rods and disk blanks. It is usually used inmaking engine rotor parts.
II. Chemicalcomposition: %
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≥ | Ni≥ | Mo≥ | Cu≤ |
0.03-0.08 | 0.65 | 0.35 | 0.015 | 0.007 | 19.0-22.0 | Balance | - | - |
Other | N≤ | Al≤ | Ti≤ | Fe≤ | B≤ | Ce≤ | W≤ | Nb≤ |
- | 0.60-1.00 | 2.40-.80 | 4 | 0.01 | 0.01 | - | - |
III. Physicalproperties:
1. Thermal performance:
(1) Thermal conductivity:
θ/℃ | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 |
λ/(W/(m · C)) | 11.3 | 12.97 | 14.64 | 16.32 | 17.99 | 20.08 | 22.59 | 25.11 | 27.62 |
(2) Linear expansion coefficient:
θ/℃ | 20 ~ 100 | 20 ~ 200 | 20 ~ 300 | 20 ~ 400 | 20 ~ 500 | 20 ~ 600 | 20 ~ 700 | 20 ~ 800 | 20 ~ 900 |
α/10-6C-1 | 11.56 | 12.3 | 13.17 | 13.79 | 14.52 | 15.07 | 15.62 | 16.3 | 17.15 |
2. Density: ρ = 8.2g/c
3. Electrical property: ρ = 1.24 × 10-6Ω ·m
4. Magnetic properties: Non-magnetic
III. Chemicalproperties:
1. Oxidation resistance: Oxidation rateafter 100h test in air medium:
θ/℃ | Oxidation rate/(g/(m3 · h)) | Oxidation rate/(g/(m3 · h)) | Oxidation rate/(g/(m3 · h)) | Oxidation rate/(g/(m3 · h)) |
25h | 50h | 75h | 100h |
|
800 | 0.086 | 0.064 | 0.051 | 0.045 |
900 | 0.212 | 0.171 | 0.133 | 0.118 |
1000 | 0.732 | 0.491 | 0.376 | 299 |