This standard specifies the specimens, test equipment, test conditions and test procedures, and test reports for repeated bending tests of metal sheets (strips). This standard is suitable for measuring the repeated bending performance and displaying defects of metal plates (strips) with a thickness of no more than 3mm at room temperature (15~30℃) and their surface covering layers.
HB 5178-1996 history
1996HB 5178-1996 Metal sheet (strip) material repeated bending test method
1970HB 5178-1981 Metal sheet (strip) material repeated bending test method