Meaning Of The Word Invar

Real Dictionary

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Invar Meaning

Invar Definition
Invar Definition

What's The Definition Of Invar?

Invar in American English
a steel alloy containing approximately 36% nickel, used for making precision instruments and thermostatic elements because of its low coefficient of thermal expansion
this substance
noun: a brand of iron alloy containing 35.5 percent nickel and having a very low coefficient of expansion at atmospheric temperatures

Invar in British English
noun: an alloy containing iron (63.8 per cent), nickel (36 per cent), and carbon (0.2 per cent). It has a very low coefficient of expansion and is used for the balance springs of watches, etc

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