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Q: The yield strength of HYSD and CT (Cold Twisted) bars:
  • A. 250 MPa
  • B. 415 MPa
  • C. 450 MPa
  • D. 500 MPa
Correct Answer: Option B - HYSD (high yielding strength deformed) bars go through the heat treatment the hot steel bars are either heat rolled or cold-twisted for shaping them. • Cold twisted bars are steel reinforcement that are processed through a cold twisting process. • The yield strength of cold twisted (CT) bars is 415 MPa. • The yield strength of HYSD is 415 MPa or 500 MPa.
B. HYSD (high yielding strength deformed) bars go through the heat treatment the hot steel bars are either heat rolled or cold-twisted for shaping them. • Cold twisted bars are steel reinforcement that are processed through a cold twisting process. • The yield strength of cold twisted (CT) bars is 415 MPa. • The yield strength of HYSD is 415 MPa or 500 MPa.

Explanations:

HYSD (high yielding strength deformed) bars go through the heat treatment the hot steel bars are either heat rolled or cold-twisted for shaping them. • Cold twisted bars are steel reinforcement that are processed through a cold twisting process. • The yield strength of cold twisted (CT) bars is 415 MPa. • The yield strength of HYSD is 415 MPa or 500 MPa.