engineering recuitment HPCL Junior Executive 2025 Mock Test Engineering Materials Science Structure and Properties of Engineering Materials
Mild steel have -
1
0.1 to 0.3% carbon + 99.7 - 99.9% iron
2
99.7 to 99.9% carbon + 0.1 - 0.3% iron
3
50% carbon + 50% iron
4
17% carbon + 83% iron