Standard No.:	YB/T 153-2015
English Name:	Standard diagrams for macrostructure and defects in high quality structural steel continuous casting blank
Chinese Name:	优质结构钢连铸坯低倍组织缺陷评级图
Chinese Classification:	H24    Metallographic testing method
Professional Classification:	YB    Professional Standard - Metallurgy
ICS Classification:	77.040.99 77.040.99    Other methods of testing of metals 77.040.99
Issued by:	MIIT
Issued on:	2015-04-30
Implemented on:	2015-10-1
Status:	valid
Superseding:	YB/T 153-1999 Standard diagrams for macrostructure and defect in quality carbon structural steel and alloy structural steel continuous casting blank
Language:	English
File Format:	PDF
Word Count:	14500 words
Price(USD):	550.00
Delivery:	via email in 1~5 business day

本标准规定了优质结构钢连铸坯低倍组织缺陷形貌特征、产生原因、评级原则、评定方法和试验报告。本标准适用于评定优质碳素结构钢、合金结构钢、弹簧钢等连铸坯的横截面酸蚀低倍组织缺陷。经供需双方协商，也可用于评定其他钢类的连铸坯。本标准适用于连铸坯尺寸范围为：边长为100mm～550mm的连铸方坯或矩形坯、直径为90mm～1000mm的连铸圆坯（简称连铸坯）。其他尺寸的连铸坯可参照使用。