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Standard Type : Main
Document No : ISO 4986:2020
Document Year : 2020
Pages : 31
Edition : 3
Section Volume : Steel castings (ISO/TC 17/SC 11.)
It also gives acceptance criteria through severity levels defined by the nature, the area and the dimensions of the discontinuities present.
This document is applicable to all ferro-magnetic castings, independent of the moulding method.
A steel and iron casting is considered to be ferro-magnetic if the magnetic induction is greater than 1 T (Tesla) for a magnetic field strength of 2,4 kA/m.
This document only applies to those areas of the castings specified for testing, as well as the percentage of castings to be tested.