GH4698 nickel-based high-temperature alloy round bar GH698 high-temperature alloy steel plate seamless tube

It is a precipitation-hardening deformed high-temperature alloy based on a temperature range of ℃ to ℃. This alloy is developed on the basis of alloy. Compared with the alloy, the aluminum and titanium content are increased, niobium and titanium are added, and the chromium content is reduced. The alloy has high lasting strength and tensile strength in the range of ℃ ~ ℃, good plasticity and comprehensive properties, and stable structure for long-term use. Suitable for making engine turbine disks, compressor disks and other load-bearing parts. The main products are hot rolled and forged bars, discs and rings.

High-temperature alloys have been used to make aerospace engine turbine disks, compressor disks, guide vanes, load-bearing rings and fasteners, etc., and have been used to make large-size turbine disks and other parts for naval gas turbines. Production and usage are in good condition.

After long-term aging at ℃~℃, the alloy has stable structure and properties, without precipitation of harmful phases.

Excerpted from B/, the impurity element analysis is different from, B, B, /, /, /, /, / and

Chemical composition
:< br/> :.~
Remaining amount
:
:
:.~3
:.3~
:.3~
：
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：

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r：
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Characteristics and uses: It is suitable for disc forgings that are stressed and rotated such as pneumatic compressor discs, turbine discs and load-bearing rings made of high-temperature alloys with temperatures below ℃.
Delivery status:
Delivered in a heat treated (normalized, annealed or high temperature tempered) or non-heat treated state, the delivery status should be specified in the contract.
Application fields:
This alloy is widely used in the manufacture of important load-bearing parts such as turbine discs, compressor discs, guide vanes, and load-bearing rings of aero engines. The working temperature can reach ℃~℃.
Heat treatment system
Excerpted from B/, B, B, /, /, /, /, / and /, the standard heat treatment system of each variety is:
Aviation forgings, (~3) ℃(~.)/﹢(~)℃(~.)/﹢(~)℃(~.)

Disc forgings for aviation, ℃℃/﹢℃℃/﹢℃℃ < br/>
Fastener bars for aviation, (~3)℃/﹢℃℃/﹢℃℃

Hot rolled and forged bars, forged round cakes for gas turbines , die forgings,

System I: (~)℃/﹢℃℃/﹢℃℃ /﹢℃℃

System II: (~)℃/ +℃℃ /﹢℃℃/.