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Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si) | |
A. | do not require heat treatment for any of its applications. [Wrong Answer] |
B. | are used for leaf and coiled springs. [Correct Answer] |
C. | do not have good resilience properties. [Wrong Answer] |
D. | is tempered at 850°C. [Wrong Answer] |