I-CAR Structural Practice Questions - I-CAR ProLevel Structural Technician Exam

Why is heat-straightening NOT permitted on boron-alloyed press-hardened steel parts?

Heat causes paint to bubble Heat reverses the metallurgical hardening process and reduces tensile strength Boron oxidizes into a toxic gas Heat causes the part to expand permanently

Correct Answer:

Heat reverses the metallurgical hardening process and reduces tensile strength

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