DS DS/EN ISO 8495
DS DSEN SO 8495 2004-AUG-23 Metallc materals - Tube - Rng-expandng test
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This 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 drift until fracture occurs. It may also be used to assess the ability of tubes to undergo plastic deformation.