General Studies · Material Science
As per IS:1570, C 45 (or 45C8) steel will have a carbon percentage range of:
- 10.1% to 0.2%
- 20.4% to 0.5%✓
- 30.7% to 0.8%
- 40.6% to 0.9%
Correct answer
0.4% to 0.5%
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