Q. The minimum carbon percentage required in steel so that it may respond to hardening by heat treatment is (Solved)
1. 0.02 percent
2. 0.08 percent
3. 0.2 percent
4. 0.8 percent
5. Low specific heat of quenching oil
- c. 0.2 percent
1. 0.02 percent
2. 0.08 percent
3. 0.2 percent
4. 0.8 percent
5. Low specific heat of quenching oil