Petreoleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes for pressure purposes—Ultrasonic testing of the ends of seamless and welded stteel tubes for the detection of laminar imperfections
基本信息
标准号:
SY/T 6423.7-1999
名称:
石油天然气工业用承压焊接钢管无损检测方法 无缝和焊接钢管管端分层缺欠的超声波检测
英文名称:
Petreoleum and natural gas industries—Non-destructive testing (NDT) methods of steel tubes for pressure purposes—Ultrasonic testing of the ends of seamless and welded stteel tubes for the detection of laminar imperfections