Silico-manganese steels (containing 0.7% Mn, 0.5% C and 2% Si)___________________?
Correct answer: B. Are used for leaf and coiled springs
- A. Do not require heat treatment for any of its applications
- B. Are used for leaf and coiled springs
- C. Do not have good resilience properties
- D. Is tempered at 850°C
Explanation
Silico-manganese steel combines strength, elasticity and good fatigue resistance, making it suitable for leaf springs and coiled springs. The stated composition is therefore associated with spring manufacture.
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