GB/T8162和GB/T8163，結構用無縫鋼管與輸送流體用無縫鋼管標準1：標準要求不一樣，輸送流體的要做渦流試驗的，2：應用范圍不一樣，一是結構支撐，一個是輸送流體(比如石油、水)3：8163的要求要高，可以代用8162，但反之不行

GB/T8162 and GB/T8163, structural seamless steel tube and conveying fluid seamless steel tube standards 1: different standards, conveying fluid to do eddy current test, 2: different scope of application, one is structural support, one is conveying fluid (such as oil, water) 3:8163 high requirements, can replace 8162, but vice versa

GB/T8162-1999(結構用無縫鋼管)。主要用于一般結構和機械結構。其代表材質(牌號)：碳素鋼20、45號鋼;合金鋼Q345、20Cr、40Cr、20CrMo、30-35CrMo、42CrMo等。

GB/T8162-1999 (seamless steel tube for structure). It is mainly used for general structure and mechanical structure. Its representative materials (grades): carbon steel 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc.

GB/T8163-1999(輸送流體用無縫鋼管)。主要用于工程及大型設備上輸送流體管道。

GB/T8163-1999 (seamless steel pipe for conveying fluid). It is mainly used for conveying fluid pipes on engineering and large equipment.