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4J32
4J32 alloy is also called Super-Invar alloy. In the temperature range of - 60~80 ℃, its expansion coefficient is lower than that of 4J36 alloy, but its low temperature structure stability is worse than that of 4J36 alloy. This alloy is mainly used for manufacturing high-precision instrument parts that are required to be within the range of ambient temperature. With the rapid development of aerospace technology, 4132 low-expansion alloy has been applied to the plane and spherical reflector frame structure of aerospace remote sensor models. Its purpose is to make use of its low expansion coefficient and thermal conductivity, which are close to the linear expansion coefficient and thermal conductivity of colorless optical glass, so as to obtain stable and reliable positioning of optical glass in the mirror frame, and ensure that the space remote sensor can transmit high-quality information in the high-altitude complex environment.
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product details
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Brand |
4J32 |
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Similar Brands |
NiCr40Al4 |
|
Corresponding Standards |
GB /T 37797-2019 《Precision alloy grade》 GB /T 15018-1994《Precision alloy grade》 |
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Classification |
Alloy steel |
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Label |
Expansion alloy invar |
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Explain |
4J32 alloy is also called Super-Invar alloy. In the temperature range of - 60~80 ℃, its expansion coefficient is lower than that of 4J36 alloy, but its low temperature structure stability is worse than that of 4J36 alloy. This alloy is mainly used for manufacturing high-precision instrument parts that are required to be within the range of ambient temperature. With the rapid development of aerospace technology, 4132 low-expansion alloy has been applied to the plane and spherical reflector frame structure of aerospace remote sensor models. Its purpose is to make use of its low expansion coefficient and thermal conductivity, which are close to the linear expansion coefficient and thermal conductivity of colorless optical glass, so as to obtain stable and reliable positioning of optical glass in the mirror frame, and ensure that the space remote sensor can transmit high-quality information in the high-altitude complex environment. |
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Density |
8.1g/cm3 |
Chemical composition：%
| Element | Fe | C | Si | Mn | P | S | Ni | Cu | Co |
| Minimum value | Allowance | - | - | 0.2 | - | - | 31.5 | 0.4 | 3.2 |
| Maximum | 0.05 | 0.2 | 0.6 | 0.02 | 0.02 | 33 | 0.8 | 4.2 |
Note: The above information is for reference only. Some elements in different standards and specifications may be different.
The information of the above materials is rough description, and any deviation may be used for reference only
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