本文件规定了低压流体输送用焊接钢管的订货内容、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、贮存及质量证明书。
本文件适用于水、空气、蒸汽和燃气等低压流体输送用直缝高频电焊(HFW)钢管、直缝埋弧焊(SAWL)钢管和螺旋缝埋弧焊(SAWH)钢管,及其镀锌后的钢管(以下简称“钢管”)。
本文件规定了钢管的尺寸、外形、重量及允许偏差。
本文件适用于制定各类用途的圆形钢管标准时,选择尺寸、外形、重量及允许偏差。
This standard specifies the ordering information,dimensions,shapes and masses,technical requirements,test methods,inspection rules,packaging,marking and quality certification of the seamless stainless steel pipes for liquefied natural gas.
This standard is applicable to the cold rolled or cold drawn seamless austenitic stainless steel pipes (hereinafter referred to as pipes) for liquefied natural gas.
This part of GB/T 21833 specifies ordering information,dimensions,shapes,masses,technical requirements,test methods,inspection rules,packaging,marking and quality certification of seamless austenitic-ferritic (duplex) stainless steel tubes for heat exchanger.
This part is applicable to seamless austenitic-ferritic (duplex) stainless steel tubes (hereafter referred to as tubes) for heat exchanger.
This part of GB/T 21833 specifies ordering information,dimensions,shapes,mass,technical requirements,test methods,inspection rules,packaging,marking and quality certification of seamless austenitic-ferritic (duplex) stainless steel pipes for fluid service.
This part is applicable to seamless austenitic-ferritic (duplex) stainless steel pipes (Hereafter referred to as pipes) for fluid service.
This standard specifies the ordering information, dimensions, shapes, masses and permissible variations, technical requirements, test methods, inspection rules, packaging, marking and quality certification of the welded austenitic stainless steel tubes for boiler and heat exchanger.
This standard is applicable to the welded austenitic stainless steel tubes (Hereinafter referred to as tubes)for heat exchanger and medium-and-low pressure boilers.
This standard specifies ordering information,dimensions,shapes,masses and permisible variations,technical requirements,test methods,inspection rules,packaging,marking and quality certification of seamless precision stainless steel pipes for rail transit vehicle braking system.
This standard is applicable to the seamless precision stainless steel pipes (Hereinafter referred to as pipes) for rail transit vehicle (such as locomotives,powered car train-sets,urban rail trains and freight or passenger trains) braking system.
本标准规定了无缝钢管的尺寸、外形、重量及允许偏差。 本标准适用于制定各类用途的平端无缝钢管标准时,选择尺寸、外形、重量及允许偏差。