Description
Étendue de la fourniture pour le groupe Aviation
Forgings, round rods, steel plates, rings, seamless pipes, steel belts, wire welding materials, welcome to inquire!
1. Introduction to GH3039 Materials
GH3039 is a single-phase austenitic solid solution reinforced alloy with medium thermal strength and good thermal fatigue properties below 800°C, and good oxidation resistance below 1000°C. The structure is stable for long-term use, and it also has good cold forming properties and welding properties. Suitable for aircraft engine combustion chambers and afterburner combustion chamber components that are suitable for long-term use below 850°C. The alloy can produce sheets, bars, silks, pipes and forgings.
GH3039 standard implementation
GB/T14992-2005 "Classification and Grade of High Temperature Materials of High Temperature Alloys and Intermetallic Compounds" (Classification et qualité des matériaux à haute température, des alliages à haute température et des composés intermétalliques)
GB/T15062 “General-purpose High-temperature Alloy Tube”
GJB1952A "Spécifications pour les tôles minces laminées à froid en alliages à haute température pour l'aviation".
GJB2297A “Specifications for Cold Drawn (Rolled) Seamless Pipe for High Temperature Alloys for Aviation”
GJB2612 "Spécifications pour l'étirage à froid des alliages à haute température pour le soudage".
GJB3165A “Specifications for Hot Rolling and Forged Rods for Aviation Loading Parts”
GJB3317A "Spécifications pour les tôles laminées à chaud en alliages aéronautiques à haute température".
GJB3318A “Specifications for Hot Rolled Strip of Aviation High Temperature Alloys”
HB/Z140 “Aviation High Temperature Alloy Heat Treatment Process”
2. Chemical composition of GH3039
alliage | % | C | Cr | Mo | Al | De | Fe | Nb | S | P | Et | Mn | Cu |
Ghhu90 | Valeur minimale | 19.0 | 1.80 | 0.35 | 0.35 | – | 0.90 | – | – | – | – | – | |
Valeur maximale | 0.08 | 22.0 | 2.30 | 0.75 | 0.75 | 3.00 | 1.30 | 0.012 | 0.020 | 0.80 | 0.40 | 0.20 |
3. GH3039 propriétés physiques
Density: 8.3g/cm3
Electrical performance: room temperature resistivity ρ=1.18*10 -6 Ω.m
Magnétisme de l'alliage : non magnétique
IV. GH3039 caractéristiques des matériaux
This alloy has good thermal processing plasticity and good deformation performance. The forging heating temperature is 1170℃, and the final forging is 900℃.
The average grain size of the alloy is closely related to the degree of deformation of the forging and the final forging temperature.
Alloys can be welded by argon arc welding, spot welding or seam welding methods, and their welding performance is excellent and the tendency of cracks is small.
After heat treatment, the oxide scale on the surface of the part can be removed by sand blowing or pickling.
V. GH3039 champs d'application
The components of the aircraft engine combustion chamber and afterburner combustion chamber made of this alloy have undergone long-term production and use tests and have good performance.