The lower critical temperature is same for all steels Lower critical temperature for steels austenite-to-pearlite transformation is 1333 ºF (723 ºCelsius). Below this temperature, austenite doesnot exist.
17) Lower critical temperature of high carbon steel while hardening is
Answer is:
723 Degree Centigrade
Explanation:
Related Heat Treatment MCQ with Answers
Answer is:
To change the mechanical properties of steel
Explanation:
Heat treatment is the process of heating and cooling metals to change their microstructure and to bring out the physical and mechanical characteristics that make metals more desirable. The temperatures metals are heated to, and the rate of cooling after heat treatment can significantly change metal's properties.
Answer is:
Hardening and tempering
Answer is: