Non-destructive testing—Practice for ultrasonic testing of circumferential butt welds in steel pipes and tubes
全国无损检测标准化技术委员会(SAC/TC 56)
本标准规定了钢制管道环向对接焊接接头的超声检测方法和质量分级。
本标准适用于壁厚大于或等于15 mm～120 mm，标称直径大于或等于159 mm的钢制承压管道环向对接焊接接头超声检测。
本标准不适用于铸钢、奥氏体不锈钢的管道环向对接焊接接头超声检测。
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