GH3044/GH44
Chinesegrade: GH3044/GH44 nickel-based superalloy
Similar grades: ЗИ686, ХН60ВТ, ВЖ98(Russia)
I. Overview of GH3044:
GH3044 is a solid solution-strengthenednickel-based anti-oxidation alloy. It can be used to manufacture aero-enginemain combustion chamber and afterburner components, as well as heat shields andguide blades, which work continuously below 900 ° C. We can supply in form of plate,strip, wire, rod and ring.
II. Chemicalcomposition: %
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≥ | Ni≥ | Mo≥ | Cu≤ |
0.1 | 0.8 | 0.5 | 0.013 | 0.013 | 23.5-26.5 | Balance | 1.5 |
|
Other | N≤ | Al≤ | Ti≤ | Fe≤ | Co≤ | V≤ | W≤ | Nb≤ |
- | 1.5 | 0.30-0.70 | 4 | - | - | 13.0-16.0 | - |
Note: GJB2612-1996 require ω (Cu) ≤0.20%;GJB3317-1998 and GJB3318-1998 require ω (Cu) ≤0.07%.
III. Physical and chemical properties
1. Thermal performance:
(1) Melting temperature range: 1352 ~ 1375 ℃ [1].
(2) Thermal conductivity:
θ/℃ | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 950 |
λ/(W/(m · ℃)) | 11.7 | 13 | 14.2 | 15.9 | 17.2 | 18.4 | 19.7 | 21.8 | 24.7 | 25.1 |
(3) Specific heat capacity:
θ/℃ | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 | 900 | 1000 |
c/(J/(kg · ℃)) | 440 | 461 | 482 | 503 | 524 | 545 | 545 | 566 | 587 | 629 |
2. Density: ρ = 8.89g/cm 3 .
3. Magnetic properties: non-magnetic.
4. Chemical properties: The oxidation rateafter 100h test in the air medium and the depth of oxidation along the crystalcan be seen in the table
θ/℃ | 900 | 1000 | 1100 | 1200 |
Oxidation rate/(g/m · h) | 0.0971 | 0.205 | 0.432 | 0.788 |
Oxidation depth along crystal/mm | 0.016 | 0.08 | 0.11 | --- |