Effect of the HTP to X80 Ferrite Steel Structure and Mechanical Properties

Yong Jie Ma; Guang Liang Zhang

doi:10.4028/www.scientific.net/AMR.189-193.4216

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 189-193Effect of the HTP to X80 Ferrite Steel Structure...

Effect of the HTP to X80 Ferrite Steel Structure and Mechanical Properties

Abstract:

The structure and mechanical properties of pipeline steel X80 through HTP rolled into 16mm thick slab were tested. The results show that the yield strength of tested has reached above 600Mpa, and the ratio of tensile strength to yield strength is 0.86, and duetile brittle transition temperature is lower than -60°C , and good strength and toughness are obtained. Low content of P, S, high content of Mn and fine microstructure have good effect on reducing the ductile-brittle transitiop temperature. Two different precipitations are observed in pipeline steel X80, a class of TiN precipitations is mainly and a small number of (Nb, V)(C, N) complex precipitations in the TiN around, and the other for large number of NbC precipitations and a small amount of TiC、VC and simultaneous deposition of the complex formed precipitations. Remarkable strengthening and grain refinement can ne caused by these precipitations.

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Periodical:

Advanced Materials Research (Volumes 189-193)

Pages:

4216-4220

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.189-193.4216

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Online since:

February 2011

Authors:

Yong Jie Ma, Guang Liang Zhang

Keywords:

Acicular Ferrite, Ductile-Brittle Temperature, HTP, Mechanical Property, Pipeline Steel X80, Precipitation, Structure Property

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References

[1] Li Helin. Gas Transmission pipe research and application of several hot spots[J]. China Mechanical Engineering, 2001, 12(3)：349~352.

Google Scholar

[2] Wang Xiaoxiang. Accelerate the next generation development of high grade steel to meet the new round of HTP pipeline construction boom[J]. Steel, 2006, 35(6): 1~3.

Google Scholar

[3] Yang Xuning, Kang yonglin, Ding Hao. X70 Acicular ferrite pipeline steel in the M/A islands of process control[J]. Rolling, 2007, 24(4): 7~8.

Google Scholar

[4] Wang Maotang, Ma Yanchang, Wang Li. X80 pipeline steel, steel pipe technological condition, establish key issues in the[J]. pipe, 2005, 28(2): 15~21.

Google Scholar

[5] Charleux M, Pool W J, Militzerm, et al . Precipitation behavior and its effect on strengthening of an HSLA-Nb/Ti steel[J]. Metallurgical and Material transaction, 2001, 32A: 1635~1647.

DOI: 10.1007/s11661-001-0142-6

Google Scholar

[6] Gao Cairu, Zhang Fulai, Li Hongbin, et al. CX400 super steel ductile-brittle transition temperature[J]. Iron and Steel Research, 2005, 17(3): 52~55.

Google Scholar