K24 / Bxji-129 (Russia) / Nickel-Based Cast Alloy / Nickel-Based Precipitation Hardening Equiaxed Cast Superalloy K424 /

• Application: Industrial
• Standard: GB, ASTM
• Purity: >99.5%
• Alloy: Alloy
• Powder: Not Powder
• Transport Package: Wooden
• Model NO.: XD-33
• Origin: Jiangsu Baoying
• HS Code: 7505120000
• Production Capacity: 500ton/Year

Product Description

K424 is a high Ai, Ti, low density nickel-based casting alloy with high high temperature strength, plasticity and good workability. The alloy is usually used in the as-cast state, but in order to reduce the degree of dendrite segregation and improve the overall performance of the alloy, solution treatment can also be used. The saturation of the alloy is high, and when it is used for a long time at around 850 °C, there is a tendency to precipitate α phase. However, it is sensitive to the size of the parts, and the precipitation of σ phase can be reduced and delayed by controlling the alloy composition and smelting process parameters and adopting the thin-wall size. The alloy is suitable for making turbine rotor blades, integrally cast turbines, and bottom plates of engine tail jets that work at 950°C.

Chemical composition Typical values(Weight %) 
       C               Cr             Ni           Co         W         Mo          Al            Ti          Nb          V           B         Zr     Ce      Fe     Mn      Si        P         Pb           Bi         S 
0.14-0.20    8.5-10.5    Remain    12-15   1.0-1.8   2.7-3.4   5.0-5.7   4.2-4.7  0.5-1.0   0.5-1.0   0.015   0.02   0.02   ≤2.0   ≤0.4   ≤0.4  ≤0.015  ≤0.001   ≤0.007  ≤0.015

Physical properties:

Melting temperature range: 1271~1310ºC

Density: 7.87g/cm3

Supply Status: As-cast supply

Expansion coefficient: 20~800ºC: 15.0 x 10-6ºC-1; Room temperature hardness (as cast): HRC36.2

Mechanical properties: 20°C: yield strength 755Mpa, elongation 12.3%; 800°C: yield strength 770Mpa, elongation 8.4%. High temperature durability: 800ºC, 519Mpa is greater than 235h.

Main application: The alloy is used to make components such as aviation and aerospace engine turbine blades, tail nozzle adjustment pieces, integrally cast turbine rotors and guides.


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Our products sales all over the world as well. From the following two websites you can also get more information about our company:
http://xingda-alloy.en.made-in-china.com
http://xingda-alloy.en.made-in-china.com
 
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