Q.

Stress strain curve of high tensile steel

A. has a definite yield point
B. does not show definite yield point but yield point is defined by 0.1% proof stress
C. does not show definite yield point but yield point is defined by 0.2% proof stress
D. does not show definite yield point but yield point is defined by 2% proof stress,
Answer» C. does not show definite yield point but yield point is defined by 0.2% proof stress
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