YB/T 4003-2016: Standard diagrams for macrostructure and defect in continuous casting slab

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Scope

This Standard specifies the samples used in the testing of macrostructure and defect in
continuous casting slab by etching and sulfur print, as well as the morphological
characteristics, cause and evaluation principle of defects.
This Standard applies to the evaluation for macrostructure and defect in slabs such as
carbon steel and alloy steel produced by continuous casting process.
The qualification grade of various defects in this Standard and the defects that are not
allowed to exist shall be stipulated in the corresponding technical conditions and the
agreement between the two parties.

Basic Data

Standard ID	YB/T 4003-2016 (YB/T4003-2016)
Description (Translated English)	Standard diagrams for macrostructure and defect in continuous casting slab
Sector / Industry	Ferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H24
Word Count Estimation	64,665
Date of Issue	2016-10-22
Date of Implementation	2017-04-01
Older Standard (superseded by this standard)	YB/T 4003-1997
Regulation (derived from)	Ministry of Industry and Information Technology Announcement No.56 of 2016
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard stipulates the samples used for the low-fold microstructure defect corrosion and sulfur printing test of continuous casting slab and the morphological characteristics, causes and rating principles of the defects. This standard is applicable to the low-fold structural defect rating of slabs such as carbon steel and alloy steel produced by continuous casting process.