beta iron

American  

noun

Metallurgy.

1. an allotrope of iron, stable between 768°C and 910°C, similar to alpha iron but nonmagnetic.

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beta iron British  

noun

1. a nonmagnetic allotrope of pure iron stable between 770°C and 910°C

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Etymology

Origin of beta iron

First recorded in 1890–95

Example Sentences

Martensite is usually considered to be a solid solution of cementite in beta iron.

From Project Gutenberg

A quickly quenched carbon steel is mostly martensitic which, as noted, is a solid solution of beta iron and Page 113 cementite, hard and brittle.

From Project Gutenberg