耐候鋼管概述：其特征在於：耐（nài）候鋼（gāng）管（guǎn）的合金成分及（jí）重量百分比含（hán）量為：C：0.12～0.21、Si：0.2～2.0、Mn：0.7～2.0、S ≤0.036、P≤0.034、Cu：0.10～0.40、Al<0.2，其餘為Fe和（hé）微量雜質。通過Cu、 Mn、Si、Al等合金化，並（bìng）簡單（dān）調（diào）整普通低碳鋼(Q235鋼)的部分元素含量，在不（bú）需改（gǎi）變Q235鋼（gāng）生產工藝條件下，就能生產出（chū）具有良好的耐大氣腐（fǔ）蝕性能、綜合機械性能的經濟耐候鋼管。
Summary of Weatherproof Steel Pipe: Characteristic: The alloy composition and weight percentage content of weatherproof steel pipe are: C: 0.12-0.21, Si: 0.2-2.0, Mn: 0.7-2.0, S < 0.036, P < 0.034, Cu: 0.10-0.40, Al < 0.2, the rest are Fe and trace impurities. Through alloying of Cu, Mn, Si and Al, and simply adjusting the element content of common low carbon steel (Q235 steel), economic weatherproof steel pipes with good atmospheric corrosion resistance and comprehensive mechanical properties can be produced without changing the production process of Q235 steel.
