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July 2017  |  Craftsman’s Cribsheet #56


“Stress cracks are defined as transverse or near transverse open crevices created when concentration of residual stresses exceed the
local yield strength at the temperature of crack formation. These stresses can be mechanically induced or attributable to extreme temperature differences and /or phase transformations. They can originate at almost any point in the manufacture of the steel.”– AISI Manual Detection, Classification and Elimination of Rod and Bar Surface Defects.