GH4043/GH43
Chinesegrade: GH4043/GH43 superalloy
I. Overview of GH4043:
GH4043 is an age-hardening typenickel-based superalloy which contain nickel, molybdenum, aluminum and otherelements and its nickel content is about 68%. The alloy has good hot and coldworkability, which have stable structure under high temperature 850 ℃, and sufficient strength and goodcomprehensive properties, as well as oxidation resistance equivalent to GH4037.It is used in the blades of gas turbines with working temperature of 800-850 ℃.
II. Chemicalcomposition: %
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≥ | Ni≥ | Mo≥ | Cu≤ |
0.12 | 0.6 | 0.5 | 0.015 | 0.01 | 15.0-19.0 | Balance | 4.0-6.0 | - |
Other | N≤ | Al≤ | Ti≤ | Fe≤ | Co≤ | B≤ | Ce≤ | Nb≤ |
- | 1.0-1.70 | 1.90-2.80 | 5 | 14.0-16.0 | 0.01 | 0.03 | 0.50-1.30 |
III. Mechanicalproperties:
1. Yield strength of alloy (σ0.2) (Mpa):≥630
2. Tensile strength σb (MPa): ≥700
3. Elongation (δ5)%: ≥ 6 Section shrinkage(ψ)%: ≥ 10
4. Hardness (HBS): 3.3-3.70
