Comment on GB/T 8162—2018 Seamless Steel Tubes for Structural Purposes

The revision status of the new standard, GB/T 8162-2018 Seamless Steel Tubes for Structural Purposes is briefed here in the article.The said standard is compared with associated domestic and foreign standards in terms of standard adoption and permissible dimension deviation.Major aspects of the newly-revised standard are analyzed, including the types as added or expurgated, and the technical indexes like chemical compositions, mechanical properties and galvanlized coating etc.Accordingly suggestions are also put forward for implementation of the revised GB/T 8162-2018.It is concluded via the analysis that for purchase of products with types of 12CrMo, 15CrMo, 12CrMoV and 12Cr-1MoV as removed from GB/T 8162-2018, Standards GB/T 6479-2013, GB/T 9948-2013 and GB/T 5310-2017 should be followed.The contents as revised in the new GB/T 1591-2018 have not been reflected in GB/T 8162-2018.It is regarded that GB/T 8162-2018 should be timely and correspondently amended in order to get the requirements for different steel goods keeping consistent with each other so as to facilitate material selection for the down stream design.