| Application: | Industrial |
|---|---|
| Standard: | GB, ASTM |
| Purity: | >99.5% |
| Alloy: | Alloy |
| Powder: | Not Powder |
| Transport Package: | Wooden |
| Customization: |
|---|
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Audited Supplier GH39 is a single-phase austenitic solid solution strengthened alloy with moderate thermal strength and good thermal fatigue properties below 800°C, and good oxidation resistance below 1000°C. Long-term use is stable in structure, and also has good cold formability and welding performance. Parts of aero-engine combustion chamber and afterburner suitable for long-term use below 850°C. The alloy can be used to produce plates, bars, wires, tubes and forgings.
solid solution strengthened superalloy
Material grade GH39 (GH3039)
Similar grade ЗИ602
GH39 solid solution strengthened superalloy
1.1, material grade
GH39 (GH39)
1.2, similar grades
ЗИ602, ХН75МБГЮ (Russia)
1.3. Technical standards of materials
GJB 1952-1994 "Specification for high temperature alloy cold-rolled sheet for aviation"
GJB 2297-1995 "Specification for cold drawn (rolled) seamless pipes of high temperature alloys for aviation"
GJB 2612-1996 "Specification for cold drawing of high temperature alloys for aviation"
GJB 3165-1998 "Specification for hot-rolled and forged bars of superalloys for aerospace load-bearing parts"
GJB 3317-1998 "Specification for high-temperature alloy hot-rolled sheet for aviation"
GJB 3318-1998 "Specification for Cold Rolled Strips of High Temperature Alloys for Aviation"
GB/T15062-1994 "General Purpose Superalloy Tube"
1.4, chemical composition
Table 1-1
C Cr Ni Al Ti Mo Nb
≤0.08 19.0~22.0 margin 0.35~0.75 0.35~0.75 1.80~2.30 0.90~1.30
Fe Si S Mn P
≤3.00 ≤0.80 ≤0.012 ≤0.40 ≤0.02
Note: Ce is allowed in the alloy. Cu=0.20% in the alloy.
1.5. Heat treatment system
Solution treatment of hot-rolled and cold-rolled sheets and strips: 1050~1090ºC, air cooling. Solution treatment of rods and pipes: 1050~1080ºC, air-cooled or water-cooled.
1.6. Variety Specifications and Supply Status
Can supply various specifications of hot-rolled sheet, cold-rolled sheet, strip, bar, wire, pipe, and forgings. Sheets, strips and tubes are solution treated and pickled for delivery. The wire rod is supplied in the cold working state or the solid solution state and the bar is delivered without heat treatment.
1.7. Melting and casting process
The alloy is smelted by electric arc furnace, electric arc furnace or non-vacuum induction furnace plus electroslag remelting or vacuum arc remelting and vacuum induction furnace plus electroslag or vacuum arc remelting process.
1.8. Application overview and special requirements
The aero-engine combustion chamber and afterburner parts made of this alloy have good performance after long-term production and use tests.
Physical and chemical properties
2.1. Thermal performance
2.1.1. Thermal conductivity
Table 2-1
θ/°C 100 200 300 400 500 600 700 800 900
λ/(W/(m·C)) 13.8 15.5 17.2 18.8 20.5 21.8 23.4 25.1 26.8
2.1.2. Specific heat capacity
Table 2-2.
θ/°C 150 200 300 400 500 600 700 800
c/(J/(kg.K)) 544 574 636 645 762 779 921 1047
2.1.3. Linear expansion coefficient
Table 2-3
θ/°C 20~100 20~200 20~300 20~400 20~500 20~600 20~700 20~800 20~900 20~1000
α/10-6C-1 11.5 12.4 13.2 13.5 13.8 14.3 14.9 15.3 15.8 16.4
2.2. Density ρ=8.3g/cm3
2.3. Electrical properties Resistivity at room temperature
ρ=1.18*10-6Ω.m
2.4, alloy magnetism
Alloy non-magnetic
,
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