1. §7.3 Technical Properties of Construction Steels Tensile property  Stress-strain chart of soft steel  Strength  Plasticity Impact toughness Cold-bending property Cold working

2. Cold-bending property refers to the ability of standing bend transmutation at normal temperature. If the steel can stand the bend transmutation better, its cold-formed property is excellent. DefinitionDefinition IndexIndex Bending-angle and bending diameter, width or diameter of steel plate Bending-angle and bending diameter, width or diameter of steel plate (d/a). Cold-bending Property

3. ExperimentExperiment Bend the steel according to the αand d/a. Check the bended parts. It is considered as qualified if they are found in good condition, that is,there is no crack, peeling or fracture. Cold-bending property video Cold-bending Property

4. Cold-bending can be achieved by plasticity transmutation in the sinuosity, thus it serves as one of the indexes of plasticity under the static load. The cold-bending test can tell us the degree of the uniformity of the interior tissue and whether there are internal stress and impurities. Consequently, the cold-bending test can be used to test the quality of the steels, such as the quality of sealing. ExplanationExplanation Cold-bending Property