"GH4033" is also known as "P 437, p 437 Ti ti, p n 77 (Russian)
GH4033 is widely used in the fields of national defense, military
and basic industry due to its excellent corrosion resistance, high
temperature strength, oxidation resistance and fatigue performance.
GH4033 alloy is developed on the basis of Cr20Ni80 in the UK by
alloying method, that the alloy is based on Ni and Cr, adding Al
and Ti to form an aging strengthened nickel base superalloy with y
phase (Ni3 (Al, Ti)) as the strengthening phase. The alloy has high
strength at 700 ~ 750℃,good corrosion resistance and oxidation
resistance below 900℃. In addition, GH4033 superalloy has better
thermal and mechanical processing properties, which is easier to be
forged and rolled than other nickel-based superalloys. It is
usually used in the manufacture of aerospace, aviation, gas
turbines and other industrial high-temperature load bearing parts,
such as engine nut fasteners and rotor parts.
Process Performance and Requirements
Vacuum Induction Furnace(VIM) and Electroslag Remelting
Furnace(ESR)
- Product Chemical Composition
Grade | C | Cr | Ni | Al | Ti | Fe | Mn | Si | P | S | B | Ce |
GH4033 | 0.03~0.08 | 19.0~22.0 | Ram | 0.60~1.00 | 2.40~2.80 | ≤4 | ≤0.35 | ≤0.65 | ≤0.015 | ≤0.007 | ≤0.01 | ≤0.01 |
- Product Physical Property
Density | ρ=8.2g/cm |
Greenhouse resistivity | Greenhouse Resistivity |
magnetic property | Non-magnetic |
- Product Heat Treatment Institution
The hot-rolled bar for rotating parts is 1080℃±10℃, air cooling
+700℃±10℃, 16h, air cooling. The bar and cold drawing bar for
ordinary bearing parts are 1080℃, 8h, air cooling +700℃ or 750℃,
16h, air cooling. annular blank and forged round plate at 1080℃,
8h, air cooling +750℃, 16h, air cooling.
- Product 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 |
- Product Coefficient of Linear Expansion
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 |

Cold-drawn Wire | ¢0.3~¢18mm(Delivery in rolls or trays) |
Hot-Rolling Wire | ¢5.5~¢20mm(Delivery in rolls) |
Strip | thickness 0.1~4.5*width 6~350mm(Supply in rolls or straight strips) |
Smooth Forged Rod on a Lathe | ¢60~350mm,L800-2500mm |
Hot-rolled Burnishing | ¢20~80mm,L1000-5000mm |
Cold Drawn and Burnishing | ¢2.5~18mm,L1000-8000mm |
Seamless Tube | ¢1~275mm,wall thickness 0.2~30,L1000-8000mm |






