Question

The temperature at which the structure of steel starts to change is called as_____
2 points​

Answer 1

Answer:

it's ignition point or flammable temperature

Step-by-step explanation:

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Answer 2

Answer:

The temperature at which the structure of steel starts to change is called as tempering

Step-by-step explanation:

method for alleviating this problem is called tempering. Most applications require that quenched parts be tempered. Tempering consists of heating steel below the lower critical temperature, (often from 400˚F to 1105˚F or 205˚C to 595˚C, depending on the desired results), to impart some toughness.

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