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ISO 4967:2013 specifies a micrographic method of determining the non-metallic inclusions in rolled or forged steel products having a reduction ratio of at least 3 using standard diagrams. This method is widely used to assess the suitability of a steel for a given use. However, since it is difficult to achieve reproducible results owing to the influence of the test operator, even with a large number of specimens, precautions should be taken when using the method.
ISO 4967:2013 also provides for the determination of non-metallic inclusions by image analysis technologies.
| Author | ISO/TC 17/SC 7 Methods of testing (other than mechanical tests and chemical analysis) |
|---|---|
| Editor | ISO |
| Document type | Standard |
| Format | Paper |
| Edition | 3 |
| ICS | 77.040.99 : Other methods of testing of metals
|
| Number of pages | 39 |
| Replace | ISO 4967:1998 |
| Weight(kg.) | 0.1663 |
| Year | 2013 |
| Country | Switzerland |