This document specifies grain statistics, analysis and size determination based on high-temperature laser confocal microscopy, including terms and definitions, method principles, test methods, grain size calculations, and inspection reports. This document is applicable to the measurement of grain size in steel, including maximum size, minimum size and average size. Nickel-based and other metal materials can refer to this document. The methods specified in this document are recommended methods and do not serve as standards for determining the grain size of any steel or other metallic material.
T/CSTM 00799-2023 history
2023T/CSTM 00799-2023 Determination of grain size in steel—High temperature laser scanning confocal microscope method