Standard No.:	YB/T 4003-2016
English Name:	Standard diagrams for macrostructure and defect in continuous casting slab
Chinese Name:	连铸钢板坯低倍组织缺陷评级图
Professional Classification:	YB    Professional Standard - Metallurgy
Issued by:	MIIT
Issued on:	2016-10-22
Implemented on:	2017-4-1
Status:	valid
Superseding:	YB/T 4003-1997 Standard diagrams for macrostructure and defect in continuous casting slab
Language:	English
File Format:	PDF
Word Count:	27500 words
Price(USD):	1454.00
Delivery:	via email in 1~5 business day

本标准规定了连铸钢板坯低倍组织缺陷酸蚀和硫印检验法用的试样以及缺陷的形貌特征、产生原因和评级原则。本标准适用于连铸工艺生产的碳素钢、合金钢等板坯低倍组织缺陷评级。
本标准中各类缺陷的合格级别和不允许存在的缺陷，应在相应的技术条件和双方协议中规定。