EUROLAB laboratory provides testing and compliance services within the scope of ISO 643 test standard. This Standard specifies a micrographic method for determining the apparent ferritic or austenitic grain size in steels. Explain the methods of estimating the average grain size of samples with unimodal size distribution and revealing grain boundaries.
Although the shape of the grains is three-dimensional, the metallographic section plane can cut a grain at any point from a grain corner to the grain's maximum diameter, thus producing a range of distinct grain sizes even in the two-dimensional plane.
If the order or the standard defining the product does not specify the number of samples and the point from which they will be taken from the product, these are left to the manufacturer, even though the precision of grain size determination has been demonstrated. increases as the number of samples evaluated increases. Therefore, it is recommended to evaluate two or more partitions. Care should be taken to ensure that the samples are representative of the bulk of the product. The samples shall be polished according to the usual methods.
Bechet-Beaujard abrasive is normally used on heat treated steel specimen. Normally, if the sample has a martensitic or bainitic structure, no subsequent heat treatment is required. If this does not happen, heat treatment is required.
EUROLAB assists manufacturers with ISO 643 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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