GH698/GH4698
説明
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1.はじめに GH698/GH4698 材料
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℃.
実施基準
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 "溶接用高温合金の冷間引抜材の仕様"
GJB 3020-1997「航空用高温合金リングビル仕様
GJB 3165-1998 航空機搭載部品用熱間圧延鍛造棒鋼仕様書
GJB 3782-1999 “Specifications for High Temperature Alloy Rods for Aviation”
HB 5198-1982 “Deformed high-temperature alloy rods for aviation blades”
2.化学成分
| 合金メダル | % | ニッケル
で |
クロム
Cr |
アイアン
フェ |
カーボン
C |
マンガン
ムン |
シリコン
そして |
モリブデン
モ |
アルミニウム
アル |
チタン
の |
ニオビウム
Nb |
リン
P |
銅
銅 |
铯 What | boron
B |
サルファ
S |
| Gh698/
Gh4698 |
最小値 | Remain
quantity |
13.0 | – | – | – | – | 2.8 | 1.3 | 2.35 | 1.8 | – | – | – | – | – |
| 最大値 | 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.物理的性質
| 密度 | 8.32g/cm3 |
| 融点 | 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.
