Metallic materials -- Bend test
Это стандарт пересмотрен ISO 7438:2016
ISO 7438:2005 specifies a method for determining the ability of metallic materials to undergo plastic deformation in bending.
ISO 7438:2005 applies to test pieces taken from metallic products as specified in the relevant product standard. It is not applicable to certain materials or products, for example tubes in full section or welded joints, for which other standards exist.