Seamless gathering pipeline tube with high toughness below 80 Ksi and carbon dioxide corrosion resistance, and manufacturing method thereof

• Main Authors: YI SHANJIE, LI JUN, GAO JIANCHANG
• Format: Patent
• Language: Chinese; English
• Published: 16.11.2016
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a seamless gathering pipeline tube with high toughness below 80 Ksi and carbon dioxide corrosion resistance, and a manufacturing method of the seamless gathering pipeline tube. The seamless gathering pipeline tube with high toughness below 80 Ksi and carbon dioxide corrosion resistance comprises, by mass percent, 0.01% to 0.15% of C, 0.15% to 0.35% of Si, 0.45% to 0.55% of Mn, 4.8% to 5.2% of Cr, 0.20% to 0.25% of Cu, 0.15% to 0.20% of Ni, 0.02% to 0.04% of Al, 0% to 0.020% of P, 0% to 0.01% of S, the balance Fe and unavoidable impurities, and 100% in total. 本发明公开了种高强韧性80Ksi以下抗CO腐蚀无缝集输管线管及其制造方法，高强韧性80Ksi以下抗CO腐蚀无缝集输管线管含有的组分及组分质量百分比如下：C：0.01%~0.15%；Si：0.15%~0.35%；Mn：0.45%~0.55%；Cr：4.8%~5.2%；Cu：0.20%~0.25%；Ni：0.15%~0.20%；Al：0.02%~0.04%；P：0≤P≤0.020%；S：0≤S≤0.01%；其余为Fe和不可避免的杂质，总计100%。