High-performance alloy material for industrial engineering and critical application conditions.
Scope of supply for Aviation Group
Forgings, round rods, steel plates, rings, seamless pipes, steel plates/steel belts, wire welding materials, welcome to inquire!
1. Introduction to GH5188 Materials
GH5188 is a Co-Ni-Cr solid-solution strengthened wrought superalloy with maximum service temperature below 1100℃. 14% tungsten is added for solid-solution strengthening to deliver balanced comprehensive performance. High chromium content plus trace lanthanum provides outstanding high-temperature oxidation resistance. The alloy features excellent hot/cold workability and weldability, suitable for aero-engine components requiring high strength below 980℃ and oxidation resistance up to 1100℃.
Available wrought products: thin plates, medium plates, strips, bars, forgings, wires and precision castings.
2. Chemical components
| Alloy | Limit | C | Cr | Ni | Co | W | Fe | B | La | Si | P | S | Cu | Ag | Bi | Pb | Mn |
| GH5188 | Minimum | 0.05 | 20.0 | 20.0 | Bal | 13.0 | – | – | 0.03 | 0.2 | – | – | – | – | – | – | – |
| Maximum | 0.15 | 24.0 | 24.0 | 16.0 | 3.0 | 0.015 | 0.012 | 0.5 | 0.020 | 0.015 | 0.07 | 0.001 | 0.0001 | 0.001 | 1.25 |
3. Technical standards of GH5188 (GH188) materials
GJB 3317-1998 Specifications for Hot Rolled Plates for Aviation High Temperature Alloys
Z9 0103-1990 Technical Conditions of GH188 Alloy Plate
Z9 132-1999 Technical Conditions for GH188 Alloy Cold Drawn Welding Wires
Q/5B 4002-1992 GH188 Alloy Cold Rolled Strips
Q/5B 4003-1992 GH188 Alloy Cold Rolled Plates
Q/5B 4014-1992 Technical Conditions of GH188 Alloy Forgings
Q/5B 4020-1992 GH188 Alloy Investment Precision Castings
Q/5B 4022-1992 GH188 Alloy Bars
Q/5B 4057-1992 GH188 Superalloy Cold Drawn Welding Wires
4. Physical properties
| Density(g/cm³) | Melting point(℃) |
| 9.09 | 1300-1360 |
5. Application areas
Mature manufacturing and application for aero-engine combustion chamber high-temperature parts such as flame tubes and guide vanes.
Aero-engine structural parts with high strength requirement below 980℃ and oxidation resistance requirement up to 1100℃.
The alloy sheet exhibits superior corrosion resistance compared with GH3536 alloy.
