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See Chinese contents: YB/T 4002-2013 YB/T 4002-2013: Standard diagrams for macrostructure and defects in continuous casting billets
This Standard specifies the morphological characteristics, causes and assessment principles for macrostructure and defects in continuous casting billets. This Standard applies to the assessment of acid-etched macrostructure and defects in the cross-section of billets such as carbon steel and low alloy steel produced by continuous casting processes. The cross-sectional dimensions of square billets range from 90 mm ~ 400 mm in side length, and rectangular billets can also be used this as a reference.
