General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
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GB/T 24178-2009
Scope
This standard specifies the sample preparation, classification and evaluation of the solidification structure and the inspection report for the low-magnification evaluation of the solidification structure of the continuous casting slab. This standard is applicable to the low-magnification evaluation of the solidification structure of continuous casting billets (billets, slabs, round billets, rectangular billets and special-shaped billets, etc.).
GB/T 24178-2009 Referenced Document
GB/T 226-1991 Etch test for macrostructure and defect of steels
GB/T 24178-2009 history
2009GB/T 24178-2009 Macrostructure assessing method for solidification structure of continuous casting blank