Tag Archives: yield strength
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Proof vs. Yield Strength
What is proof strength of a bolt and how it is different from yield strength?Proof strength, or proof load, is the full size equivalent of a yield test. Yield testing is typically only performed on machined specimens. In most fastener standards, full size testing is the preferred method, and the referee method if there is a discrepancy between the two test results. Because of the difficulty of getting reliable... Read more