Control Final Cooling Temperature on High Strength of the Pipeline Radio Yield Influence

Abstract:

In high strength pipeline steel rolling technology, the control of final cooling temperature of different microstructure, different microstructure of pipeline steel tensile strength, yield strength and the effects of different, thus determine its yield ratio differences. The results show that with lath bainite microstructure of the pipeline steel than with acicular ferrite microstructure of the pipeline steel with lower yield ratio, at the same time lath bainite microstructure in small dispersed precipitates in pipeline steel X80 pipeline steel to reduce the yield ratio is beneficial, for high strength pipeline steel production technology to provide the theory basis.

• Periodical: Applied Mechanics and Materials (Volumes 117-119)
• Pages: 310-314
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.117-119.310
• Online since: October 2011
• Authors: Yong Jie Ma, Xun He, Guang Liang Zhang
• Keywords: Acicular Ferrite, Board Strips Bainite, High Strength Steel Pipe, Microstructure, Versetzung, Yield Ratio

References

[1] Li Helin. Research and application of natural gas transporting pipe in several hot problems of[J] . Pipe, 2005, 23 (3 ) : 43 ~ 61.

[2] Yan Lichao, Yu Wei, Tang Di. Finish rolling temperature for high strength pipeline steel yield ratio effect [ J]. Shanghai metals, 2007, 29 (3 ) : 37 ~ 40.

[3] L E Collins, G E Ruddle, A F Crawley, et al.Accelerated Cooling of Rolled Steel of [R] . Winnipeg : Pergamon Press, 1987: 57

[4] Wang Chunming, Wuxing Fang. X70 pipeline steel microstructure analysis of[J] . Anshan Iron and steel technology, 2004, (5 ) : 21 ~ 25.

[5] Tananka T.Controlled Rolling of Steel and Str of[J] . International Metals Reviews, 1981, (4 ) : 185 ~ 220

[6] Shama Udit, Lvey Douglas G Microstructure of Microlloyed Line pipe Steels 2000 Inernational pipe line Conference, ASME, 2000, (1 ) : 193