GB/T 13305-2024 Method for determining content of the α-phase in stainless steels

GB/T 13305-2008 Micrographic method for determining area content of the α-phases in stainless steels

GB/T 1954-1980 Determination of the weldign seam iron element contenting chromium, nickel austenitic stainless steel GB/T 1954-2008 Methods of measurement for ferrite content in austenitic Cr-Ni stainless steel weld metals GB/T 13298-1991 Metal—Inspection method of microstructure GB/T 13298-2015 Inspection methods of microstructure for metals GB/T 15749-1995 Manual measuring method in quantitative metallography GB/T 15749-2008 Measuring method in quantitative metallography GB/T 18876.1-2002 Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis—Part 1:Determining the inclusion or second-phase constituent content of steels and other metals by automatic image analysis and stereology GB/T 18876.1-2024 Standard practice for determining the metallographical constituent and inclusion content of steels and other metals by automatic image analysis—Part 1:Determining the inclusion or second-phase constituent content of steels and other metals by automatic image analysis and stereology GB/T 30067-2013 Standard terminology relating to metallography YB/T 4402-2014 "The determination of the content of δ ferrite in martensitic stainless steel by means of metallographic examination"