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GB/T 6394-2017 English PDF (GBT6394-2017)

GB/T 6394-2017 English PDF (GBT6394-2017)

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GB/T 6394-2017: Determination of estimating the average grain size of metal
This standard specifies the expression and determination methods of the average grain size of metal structure, including the comparison method, area method and interception method; it is applicable to the single-phase structure; however, after being specified, it is also applicable to the determination of the average grain size of the certain type in the multi-phase or multi-component sample. If the histomorphology of the non-metallic material is similar to the metal structure in the rating chart, it may also make reference to it.

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