GH3625/GH625
ChinaGrade: GH3625/GH625 nickel-base superalloy
US Grade: Inconel625/UNS NO6625
France grades: NC22DNb
Germany Grade: W.Nr.2.4856
I. Overview of GH3625:
GH3625 is a solid solution strengthenednickel-based deformed superalloy with molybdenum and niobium as the mainstrengthening elements. It has excellent corrosion resistance and highoxidation performance, and has good tensile properties and fatigue propertiesfrom cryogenic temperature to 980 ° C, and has stress corrosion resistance in asalt spray atmosphere. Therefore, it can be widely used in the manufacture ofaero-engine parts, aerospace structural parts and chemical equipment. The alloyhas good processing and welding performance. Huacheng Jinyan can supply in formof plates, rods, tubes, wires, strips and forgings.
II. Chemicalcomposition: %
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≥ | Ni≥ | Mo≥ | Cu≤ |
0.1 | 0.5 | 0.5 | 0.015 | 0.015 | 20.0-2300 | Balance | 8.0-10.0 | 0.07 |
Other | N≤ | Al≤ | Ti≤ | Fe≤ | Co≤ | V≤ | W≤ | Nb≤ |
- | 0.4 | 0.4 | 5 | 1 | - | - | - |
III. Physical andchemical properties
1. Thermal performance:
(1) Melting temperature range: 1290 ～ 1350 ℃ [1] .
2. Density: ρ = 8.44g/cm 3 .
3. Magnetic properties: non-magnetic.
4 chemical properties:
(1) Oxidation resistance: The alloy hasexcellent high-temperature oxidation resistance.
Cycle oxidation time/h | 100 | 200 | 300 | 400 | 500 | 600 | 700 |
Weight change /% | 980 ℃ | 0.086 | 0.065 | 0.065 | 0.048 | 0.021 | - | 0.03 |
1095 ℃ | -0.182 | -1.086 | -3.335 | -5.399 | -6.566 | -10.066 | - |
Note: Cycle oxidation heating for 15min,cooling for 5min per cycle.
