ASTM A720 / A720M – 02(2016)e1 : Standard Test Method for Ductility of Nonoriented Electrical Steel
This is a specialized bend test for nonoriented electrical steel not covered under the provisions of Test Methods .
This test is applicable to nonoriented silicon steel such as described in Specifications and in commercial thicknesses.
It is not intended to be applied to steels considered inherently ductile.
This test method covers determination of ductility utilizing Epstein test strips and a bending device for bending the strip over a predetermined radius. It is intended for commercial silicon-bearing steel sheet or strip of nonoriented types in the thickness range from 0.010 to 0.031 in. [0.25 to 0.79 mm], inclusive.