抗H_2S腐蚀无缝管线管的研制
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摘要
依据美国石油协会API Spec 5L标准,通过合金成分设计、冶炼轧制工艺优化、热处理制度筛选等手段,试制了力学性能及抗H_2S腐蚀性能优良的无缝管线管。结果表明:试制管线管热轧态及调质态力学性能及抗酸性腐蚀性能均满足API Spec 5L标准要求。热轧态组织晶粒细小均匀,珠光体片层间距较小,性能满足X52钢级管线管要求,经过900℃淬火+600℃回火调质工艺后,组织中针状铁素体数量增加明显,其综合力学性能最优,可作为X65钢级管线管使用。
According to API Spec 5 L standard,the seamless line pipe with fine mechanical properties and H_2S corrosion resistance was researched through the means of chemical composition designing,optimizing smelting and rolling processes,and screening heat treatment processes. The results show that the mechanical properties and anti-H_2S corrosion properties of hot-rolled trial-linepipe and quenched and tempered trial-linepipe can meet API Spec 5 L standard. The grain of hot rolled seamless line pipe is uniform and fine,and pearlite interlamellar spacing is small,the mechanical properties can meet X52 requirements. After 900 ℃ quenching and 600 ℃ tempering,the content of acicular ferrite in microstructure is increased obviously,and the mechanical properties of the pipe steel are the best,and it can be used for X65 line pipe.
According to API Spec 5 L standard,the seamless line pipe with fine mechanical properties and H_2S corrosion resistance was researched through the means of chemical composition designing,optimizing smelting and rolling processes,and screening heat treatment processes. The results show that the mechanical properties and anti-H_2S corrosion properties of hot-rolled trial-linepipe and quenched and tempered trial-linepipe can meet API Spec 5 L standard. The grain of hot rolled seamless line pipe is uniform and fine,and pearlite interlamellar spacing is small,the mechanical properties can meet X52 requirements. After 900 ℃ quenching and 600 ℃ tempering,the content of acicular ferrite in microstructure is increased obviously,and the mechanical properties of the pipe steel are the best,and it can be used for X65 line pipe.
引文
[1]李呐,李晨光,汤智涛,等.抗H2S腐蚀管线管的开发[J].钢管,2005,34(5):13-17.Li Na,Li Chenguang,Tang Zhitao,et al.Development of anti-H2S corrosion linepipe[J].Steel Pipe,2005,34(5):13-17.
[2]ISO 15156-1-2001.石油和天然气工业一石油和天然气工业生产中含H2S环境使用的材料第一部分:选择抗裂纹材料的一般原则[S].
[3]赵平,安成强.H2S腐蚀的影响因素(I)[J].全面腐蚀控制,2002,16(3):5-6.Zhao Ping,An Chengqiang.Influence factors of metal corrosion in the environment containing H2S(Ⅰ)[J].Total Corrosion Control,2002,16(3):5-6.
[4]孙淑华.显微组织对珠光体钢疲劳裂纹扩展速率的影响[J].物理测试,2004(2):7-10.Sun Shuhua.Effect of microstructure on propagation rate of fatigue crack in pearlitic steels[J].Physics Examination and Testing,2004(2):7-10.
[5]王立军,蔡庆伍,余伟,等.低碳低合金钢的连续冷却相变组织特征及其形成机制[J].材料工程,2010(8):29-33.Wang Lijun,Cai Qingwu,Yu Wei,et a1.Characterization and formation mechanism of microstructures of low carbon low alloy steel during continuous cooling transformation[J].Journal of Materials Engineering,2010(8):29-33.
[6]黄电源,张业圣.大直径厚壁X70QS钢级管线用无缝钢管的在线热处理工艺研究[J].钢管,2015,44(6):21-25.Huang Dianyuan,Zhang Yesheng.Study on on-line heat treatment process for large-sized heavy-wall X70QS seamless linepipe[J].Steel Pipe,2015,44(6):21-25.
[2]ISO 15156-1-2001.石油和天然气工业一石油和天然气工业生产中含H2S环境使用的材料第一部分:选择抗裂纹材料的一般原则[S].
[3]赵平,安成强.H2S腐蚀的影响因素(I)[J].全面腐蚀控制,2002,16(3):5-6.Zhao Ping,An Chengqiang.Influence factors of metal corrosion in the environment containing H2S(Ⅰ)[J].Total Corrosion Control,2002,16(3):5-6.
[4]孙淑华.显微组织对珠光体钢疲劳裂纹扩展速率的影响[J].物理测试,2004(2):7-10.Sun Shuhua.Effect of microstructure on propagation rate of fatigue crack in pearlitic steels[J].Physics Examination and Testing,2004(2):7-10.
[5]王立军,蔡庆伍,余伟,等.低碳低合金钢的连续冷却相变组织特征及其形成机制[J].材料工程,2010(8):29-33.Wang Lijun,Cai Qingwu,Yu Wei,et a1.Characterization and formation mechanism of microstructures of low carbon low alloy steel during continuous cooling transformation[J].Journal of Materials Engineering,2010(8):29-33.
[6]黄电源,张业圣.大直径厚壁X70QS钢级管线用无缝钢管的在线热处理工艺研究[J].钢管,2015,44(6):21-25.Huang Dianyuan,Zhang Yesheng.Study on on-line heat treatment process for large-sized heavy-wall X70QS seamless linepipe[J].Steel Pipe,2015,44(6):21-25.