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Q: Steel is an alloy of :
  • A. carbon and manganese
  • B. carbon and silicon
  • C. iron and sulphur
  • D. iron and carbon
Correct Answer: Option D - Steel is an alloy of iron and carbon along with small amounts of other alloying elements or residual elements as well. For the most of steel alloy varying 0.1% to 1.5% There are three type plain carbon steel– (i) Low carbon steel : carbon content in the range of < 0.3% (ii) Medium carbon steel : carbon content in range of 0.3 to 0.6% (iii) High carbon stress : Carbon content in the range of 0.6-1.4%
D. Steel is an alloy of iron and carbon along with small amounts of other alloying elements or residual elements as well. For the most of steel alloy varying 0.1% to 1.5% There are three type plain carbon steel– (i) Low carbon steel : carbon content in the range of < 0.3% (ii) Medium carbon steel : carbon content in range of 0.3 to 0.6% (iii) High carbon stress : Carbon content in the range of 0.6-1.4%

Explanations:

Steel is an alloy of iron and carbon along with small amounts of other alloying elements or residual elements as well. For the most of steel alloy varying 0.1% to 1.5% There are three type plain carbon steel– (i) Low carbon steel : carbon content in the range of < 0.3% (ii) Medium carbon steel : carbon content in range of 0.3 to 0.6% (iii) High carbon stress : Carbon content in the range of 0.6-1.4%