NF EN ISO 17655

Destructive tests on welds in metallic materials - Method for taking samples for delta ferrite measurement

ISO 17655:2003 specifies the determination of the delta ferrite content of welds, of surfacings with austenitic weld metal, welding being carried out on welding procedure tests and production coupon test plates using any fusion welding process that is suitable for austenitic materials, with or without filler metal including welds made on components.

It is intended that the ferrite number be used exclusively for stating the delta ferrite content of austenitic weld metal as determined by the method described in ISO 17655:2003.

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