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Q: High tensile steel usually contains ______% of carbon and______% of manganese.
  • A. 0.7 to 0.85 and 0.75 to 1
  • B. 0.6 to 0.85 and 0.75 to 1
  • C. 0.6 to 0.85 and 0.7 to 1
  • D. 0.7 to 0.85 and 0.7 to 1
Correct Answer: Option C - High tensile steel– • High-tensile steel usually contains 0.60-0.85% carbon 0.7-1% manganese, 0.05% of sulphur and phosphorus with traces of silica. • High tensile strength is generally achieved by marginally increasing the carbon content in steel in comparison with mild steel. • Tensile strength of high tensile steel - 1400 to 2000 MPa
C. High tensile steel– • High-tensile steel usually contains 0.60-0.85% carbon 0.7-1% manganese, 0.05% of sulphur and phosphorus with traces of silica. • High tensile strength is generally achieved by marginally increasing the carbon content in steel in comparison with mild steel. • Tensile strength of high tensile steel - 1400 to 2000 MPa

Explanations:

High tensile steel– • High-tensile steel usually contains 0.60-0.85% carbon 0.7-1% manganese, 0.05% of sulphur and phosphorus with traces of silica. • High tensile strength is generally achieved by marginally increasing the carbon content in steel in comparison with mild steel. • Tensile strength of high tensile steel - 1400 to 2000 MPa