YB/T 4002-2013: Standard diagrams for macrostructure and defects in continuous casting billets

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Scope

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.

Basic Data

Standard ID	YB/T 4002-2013 (YB/T4002-2013)
Description (Translated English)	Standard diagrams for macrostructure and defects in continuous casting billets
Sector / Industry	Ferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H24
Classification of International Standard	77.040.99
Word Count Estimation	44,487
Older Standard (superseded by this standard)	YB/T 4002-1991
Quoted Standard	GB/T 226
Regulation (derived from)	Ministry of Industry and Information Technology Bulletin 2013 No. 23; industry standard filing Notice 2013 No. 7 (No. 163 overall)
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard specifies the continuous casting billet macrostructure and defect morphology, causes and assessment principles. This standard applies to assess the use of continuous casting process to produce carbon steel and low alloy steel billet lower et