GH698/GH4698
Description
Étendue de la fourniture pour le groupe Aviation
Pièces forgées, barres rondes, plaques d'acier, anneaux, tuyaux sans soudure, plaques d'acier/courroies d'acier, matériaux de soudage par fil, n'hésitez pas à nous contacter !
1. Introduction à la GH698/GH4698 Matériaux
GH469/GH698 is a nickel-based high-temperature alloy strengthened with aluminum, titanium, molybdenum, niobium and other elements. It is developed based on GH4033 alloy and has high durable strength and good comprehensive performance in the range of 500℃~800℃. This alloy is widely used in the manufacture of important bearing parts such as turbine discs, compressor discs, deflectors, and bearing rings of aircraft engines. The working temperature can reach 750℃~800℃.
Implementation standards
GB/T14992-2005 “High Temperature Alloy”
HB 5285-1984 “GH698 alloy disc forgings for aviation”
GJB 3782-1999 “Specifications forged round cakes for high temperature alloy for aviation”
GJB 1953-1994 “Specifications on Hot Rolled Rods for High Temperature Alloys for Rotating Parts of Aero Engines”
GJB 2611-1996 “Specifications for Cold Pulling Rods for High Temperature Alloys for Aviation”
GJB 2612-1996 “Specifications for Cold Drawing of High Temperature Alloys for Welding”
GJB 3020-1997 “Specifications for High Temperature Alloy Ring Bills for Aviation”
GJB 3165-1998 “Specifications on Hot Rolling and Forged Rods for Aviation Loading Parts”
GJB 3782-1999 “Specifications for High Temperature Alloy Rods for Aviation”
HB 5198-1982 “Deformed high-temperature alloy rods for aviation blades”
2. Composants chimiques
| Médaille en alliage | % | nickel
En |
chrome
Cr |
fer
Fe |
carbone
C |
manganèse
Mn |
silicium
Et |
molybdenum
Mo |
aluminium
Al |
titane
De |
niobium
Nb |
phosphorus
P |
cuivre
Cu |
铯 What | boron
B |
soufre
S |
| Gh698/
Gh4698 |
Valeur minimale | Remain
quantity |
13.0 | – | – | – | – | 2.8 | 1.3 | 2.35 | 1.8 | – | – | – | – | – |
| Valeur maximale | 16.0 | 2.0 | 0.08 | 0.4 | 0.6 | 3.2 | 1.7 | 2.75 | 2.2 | 0.015 | 0.07 | 0.02 | 0.005 | 0.007 |
3. Propriétés physiques
| densité | 8.32g/cm3 |
| Point de fusion | 1340-1365 ℃ |
Has the following characteristics
High durable strength
Good comprehensive performance
Long-term use of tissue stability
IV. Application areas
Suitable for aircraft engine turbine discs, compressor discs, flow guide plates, bearing rings and other important bearing parts for long-term use below 750~800℃
It is used for high durability strength below 500~800℃ and can be widely used in various high-demand occasions. Such as: aircraft engine, combustion turbine disc, compressor disc, flow guide plate, load bearing ring.
