超级13Cr油管钢的显微组织与力学性能

doi:10.11973/lhjy-wl202102004

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理化检验—物理分册 ›› 2021, Vol. 57 ›› Issue (2) : 17-20. DOI: 10.11973/lhjy-wl202102004

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试验与研究

超级13Cr油管钢的显微组织与力学性能

苏国锦¹, 徐蔼彦², 王海博², 王红江², 刘西西²

作者信息 +

Microstructure and Mechanical Properties of a Super 13Cr Tubing Steel

SU Guojin¹, XU Aiyan², WANG Haibo², WANG Hongjiang², LIU Xixi²

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摘要

以调质处理并经矫直后高温退火的超级13Cr油管钢为研究对象，对其显微组织及力学性能进行了分析。结果表明：该超级13Cr油管钢的显微组织为板条状马氏体+少量长条状δ铁素体，晶粒度等级为9级；随着试验温度从-90 ℃升高到100 ℃，其冲击吸收能量增大，-90 ℃下的冲击吸收能量可达158 J；室温下，其屈服强度为823 MPa，抗拉强度为936 MPa，硬度为29. 4 HRC，均满足技术要求；其疲劳强度为550 MPa。

Abstract

The microstructure and mechanical properties of the super 13Cr tubing steel after quenching and tempering treatment and high temperature annealing after straightening were analyzed. The results show that the microstructure of the super 13Cr tubing steel was lath martensite+small amount of long δ ferrite, and the grain size was grade 9. With the test temperature increasing from -90 ℃ to 100 ℃, the impact absorption energy of the super 13Cr tubing steel increased, and the impact absorption energy can reach 158 J at -90 ℃. At room temperature, the yield strength of the super 13Cr tubing steel was 823 MPa, the tensile strength was 936 MPa, and the hardness was 29. 4 HRC, all of which met the technical requirements. The fatigue strength of super 13Cr tubing steel was 550 MPa.

导出引用

苏国锦, 徐蔼彦, 王海博, 王红江, 刘西西. 超级13Cr油管钢的显微组织与力学性能[J]. 理化检验—物理分册, 2021, 57(2): 17-20 https://doi.org/10.11973/lhjy-wl202102004

SU Guojin, XU Aiyan, WANG Haibo, WANG Hongjiang, LIU Xixi. Microstructure and Mechanical Properties of a Super 13Cr Tubing Steel[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 2021, 57(2): 17-20 https://doi.org/10.11973/lhjy-wl202102004

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