上海翔洽金属制品有限公司

High temperature alloy
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Material grade American grade
Overview The alloy is a new type of alloy developed on the basis of foreign multi-phase cobalt-based high-temperature alloy alloys High-strength multi-phase cobalt-based superalloy. Its main feature is to use cold deformation to first induce the generation of cross-network distributed lamellar phases in the face-centered cubic matrix to prevent the long-range movement of dislocations and produce strengthening, and then precipitate and disperse the dispersed phases through aging treatment to supplement the strengthening. This alloy has comprehensive properties such as ultra-high strength, good plastic toughness and high stress corrosion resistance, and can still maintain its high strength characteristics at high temperatures of ℃. This alloy can not only be widely used in high-temperature fastening bolts and other parts of aeroengines, but can also be used in ultra-high-strength fasteners for aircraft serving in stress corrosion environments such as marine atmospheric environments. The main varieties supplied are cold drawn bars.
Material grade.
Similar brands in the United States.
Technical standards of materials
The chemical composition is shown in the table.
Table
Not greater than
Surplus
Heat treatment system: solution treatment ℃, water cooling, cold drawing deformation and aging treatment at room temperature ℃, air cooling.
Varieties, Specifications and Supply Status Cold-drawn bars that can be supplied are in cold-drawn condition.
The smelting and casting process adopts a dual production process of vacuum induction and vacuum arc remelting.
Application Overview and Special Requirements This alloy is mainly used for fasteners of aerospace engines. It has stable performance at ℃ and can be used for a long time. It is currently the aero-engine fastener material with the best comprehensive performance.
The alloy is mainly strengthened by cold deformation inducing the production of a large number of network-distributed phases. Therefore, the process parameters of cold drawing deformation must be strictly controlled. The amount of deformation is too small and the strength is insufficient. The amount of deformation is too large, the strength increases, but the plasticity decreases. Practice has proved that when the amount of cold deformation is controlled at the lower limit, the alloy has better overall properties.
2 Physical and chemical properties
Thermal properties
Temperature range Melting point °C.
See the table for conductivity.
Table

℃
℃
Cold drawn state
Cold drawn aging state
Please see the table for expansion coefficient Cold drawn aging state
.
Table

℃
℃
Density.
The electrical resistivity of the alloy is shown in the table.
Table
℃
℃
The magnetic permeability of magnetic alloy at ℃.
Chemical Properties
Corrosion Properties This alloy has excellent resistance to crevice corrosion and stress corrosion cracking. Crevice corrosion and pitting corrosion were not found in typical ferric chloride experiments. No damage occurred in the salt rub test. Alternate impregnation proved that the alloy has good resistance to hydrogen embrittlement and stress corrosion cracking.
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We have our own warehouse to help customers store the goods they need.
We can cut it into corresponding sizes according to customer needs.
We can deliver the products ordered by customers to their doorsteps.
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