Standard No.:	YB/T 4181-2008
English Name:	Double-seam welded square and rectangular tubes
Chinese Name:	双焊缝冷弯方形及矩形钢管
Chinese Classification:	H48    Steel tube and cast iron pipe
Professional Classification:	YB    Professional Standard - Metallurgy
ICS Classification:	77.140.75 77.140.75    Steel pipes and tubes for specific use 77.140.75
Issued by:	NDRC
Issued on:	2008-03-12
Implemented on:	2008-9-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	9000 words
Price(USD):	270.00
Delivery:	via email in 1~3 business day

本标准规定了双焊缝冷弯方形和矩形钢管(以下简称钢管)的分类与代号、尺寸、外形、重量及允许偏
差、技术要求、试验方法、检验规则、包装、标志及质量证明书等。
本标准适用于采用热轧钢带或钢板，经冷弯成型为方形或矩形，采用气体保护焊、埋弧焊等焊接方法
而制成的结构用钢管。