GB/T 8162—2018《结构用无缝钢管》标准述评

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

    • 摘要: 简述GB/T 8162—2018《结构用无缝钢管》新标准的修改情况,从标准的采标及尺寸允许偏差方面与国内外相关标准进行对比,分析新标准增加或删减的牌号和化学成分、钢管制作方法、力学性能、镀锌层等技术指标,并对GB/T 8162—2018新标准的执行提出建议。分析认为:GB/T 8162—2018标准中删除的12CrMo、15CrMo、12CrMoV、12Cr1MoV等牌号的产品应按照GB/T 6479—2013、GB/T 9948—2013和GB/T 5310—2017订货;GB/T 1591—2018新标准中的修改内容并未在GB/T 8162—2018体现,应对GB/T 8162—2018适时进行相应修改,使不同钢材产品的要求保持一致,方便下游设计选材。

       

      Abstract: 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.

       

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