GOST 1579 Metal Wire -- Reverse bend test machine

ISO 7801: Metallic materials -- Wire -- Reverse bend test

Specifies the method for determining the ability of wire of diameter or thickness 0,3 to 10 mm inclusive to undergo plastic deformation during reverse bending. The range of diameters of thicknesses for which GOST 1579, ISO 7801 is applicable may be more exactly specified in the relevant product standard. The test consists of repeated bending, through 90 in opposite directions, of a test piece held at one end, each bend being over a cylindrical support of a specified radius.

UnitedTest supply the Reverse bend test machine for this purpose.