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  • Invar 42

    Invar 42 is a nickel-iron controlled-expansion alloy containing 41% nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 300°C. Used for glass-to-metal sealing of components that are enclosed in a glass envelope, such as lamps and electron tubes.


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商品描述

Invar 42 is a nickel-iron controlled-expansion alloy containing 41% nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 300°C. Used for glass-to-metal sealing of components that are enclosed in a glass envelope, such as lamps and electron tubes.



C

Mn

Si

Ni

Fe

Max 0.05

Max 0.40

Max 0.25

Nom 41.0

Bal.


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