This standard specifies the selection and preparation of samples for microscopic evaluation of non-metallic inclusions in steel, the microscopic evaluation method of non-metallic inclusions, result presentation and test reports, etc. This standard applies to the microscopic assessment of non-metallic inclusions in steels that have undergone extension deformation (such as rolling, forging, cold drawing, etc.).
GB/T 10561-1989 history
2023GB/T 10561-2023 Standard grading chart microscopic examination method for determination of non-metallic inclusion content in steel
2005GB/T 10561-2005 Steel.Determination of content of nonmetallic inclusions.Micrographic method using standards diagrams
1989GB/T 10561-1989 Steel--Determination of content of non-metallic inclusion--Micrographic method using standard diagrams