red heat
Noun
Meaning
the heat or the color of fire
Source: WordNetSynonyms
Antonyms
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Examples
As no metallurgic processes were used to separate iron from nickel, the alloy was used as it was. citation Meteoric iron could be forged from a red heat to make objects such as tools, weapons, and nails.
A few types of tube permit operation with the anodes at a dull red heat; in other types, red heat indicates severe overload.
Silver does not react with air, even at red heat, and thus was considered by alchemists as a noble metal along with gold.
Its reactivity is intermediate between that of copper (which forms copper(I) oxide when heated in air to red heat) and gold.