GB/T 31925-2015 Translated English of Chinese Standard. (GBT 31925-2015, GB/T31925-2015, GBT31925-2015): Ultrasonic Test Methods of Heavy Wall Thickness Seamless Steel Pipes and Tubes [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2016 M09 2 - 13 pages This Standard specifies the piezoelectric ultrasonic test principles, test methods, comparison specimen, flaw-detection equipment, test procedure, result assessment, test report of seamless stainless steel pipe with the ratio of wall-thickness to outside diameter in the range of 0.2~0.3. |
Common terms and phrases
2.0 above boiler acoustic beam automatic inspection bottom surface can't be subject cancel the processing continuous flaw detection defect Blind area defect Transverse external detector device for automatic diameter is less end of specimen external defect Blind external defect Transverse external surface fixed-time calibration Flaw detecting staff flaw detection device internal and external internal diameter limit internal wall L-Longitudinal wave longitudinal defects Longitudinal external defect longitudinal notch natural defects nominal wall thickness perpendicular pipe Other stainless pipe wall pipe’s pipe's nominal wall pre-setting alarm level ratio of wall reference pipes S-Transverse same-specification steel pipe self-transmitting and self-receiving signal amplitude static commissioning steel pipe axis Steel Pipe Longitudinal steel pipe surface Steel pipe's nominal test equipment tested steel pipe Testing Schematic Diagram testing the longitudinal transverse artificial defect transverse defects Transverse external defect transverse notch transverse wave Ultrasonic Testing Schematic value/mm deviation wall is processed wall of steel whole steel pipe