BS EN ISO 8495:2013

Describes a method for a ring-expanding test on tubes, that is used to reveal defects both on the surfaces and within the tube will by expanding the test piece using a conical mandrel until fracture occurs.

This International Standard specifies a method for a ring-expanding test on tubes, that is used to reveal defects both on the surfaces and within the tube wall by expanding the test piece using a conical mandrel until fracture occurs. It may be also used to assess the ability of tubes to undergo plastic deformation.

The ring-expanding test is applicable to tubes having an outside diameter from 18mm up to and including 150mm and a wall thickness from 2mm up to and including 16mm.