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Q: When compared to mild steel bar, the percentage of carbon content in high strength deformed bar is
  • A. Equal
  • B. Only 50%
  • C. Higher
  • D. Lesser
Correct Answer: Option C - Mild steel bars– The carbon content in these types of bars is very low and in the range of 0.15 to 0.25%. These steel bars are also referred to as plain bars, low carbon steel and dead steel. High yield strength deformed (HYSD) bars– The carbon content is in the range of 0.70% to 1.5%. Typically, these are grades of HYSD bars. They are- Fe 415 Fe 500 Where, the number indicates the yield strength of the bar in N/mm². Note– Compared to mild steel bar, the percentage of carbon content in high strength deformed bar is higher.
C. Mild steel bars– The carbon content in these types of bars is very low and in the range of 0.15 to 0.25%. These steel bars are also referred to as plain bars, low carbon steel and dead steel. High yield strength deformed (HYSD) bars– The carbon content is in the range of 0.70% to 1.5%. Typically, these are grades of HYSD bars. They are- Fe 415 Fe 500 Where, the number indicates the yield strength of the bar in N/mm². Note– Compared to mild steel bar, the percentage of carbon content in high strength deformed bar is higher.

Explanations:

Mild steel bars– The carbon content in these types of bars is very low and in the range of 0.15 to 0.25%. These steel bars are also referred to as plain bars, low carbon steel and dead steel. High yield strength deformed (HYSD) bars– The carbon content is in the range of 0.70% to 1.5%. Typically, these are grades of HYSD bars. They are- Fe 415 Fe 500 Where, the number indicates the yield strength of the bar in N/mm². Note– Compared to mild steel bar, the percentage of carbon content in high strength deformed bar is higher.