ISSN:1003-8620

CN:42-1243/TF

主管:中信泰富特钢集团股份有限公司

主办:大冶特殊钢有限公司

特殊钢 ›› 2010, Vol. 31 ›› Issue (2): 63-65.

• 组织和性能 • 上一篇    下一篇

淬火温度对石油套管用钢27MnCrV冲击韧性的影响

白兴国, 梅 丽, 陈建伟, 宗卫兵, 张传友   

  1. 天津钢管集团股份有限公司,天津300301
  • 接受日期:2009-10-23 出版日期:2010-04-01 发布日期:2022-11-17
  • 作者简介:白兴国(1978-),男,工程师,2003年内蒙古科技大学毕业, 油井管、锅炉管新品种开发。

Effect of Quenching Temperature on Impact Toughness of Steel 27MnCrV for Petroleum Casing Pipe

Bai Xingguo,  Mei Li,  Chen Jianwei,  Zong Weibing , Zhang Chuanyou   

  1. Tianjin Pipe Group Corp, Tianjin 300301
  • Accepted:2009-10-23 Published:2010-04-01 Online:2022-11-17

摘要: 研究了890~780℃淬火对630℃回火的石油套管用钢27MnCrV(%:0.24~0.30C、0.50~0.70Cr、0.06~0.10V)横向冲击功的影响。结果表明,随淬火温度降低,该钢横向V-冲击功显著增加;在保证拉伸强度不降低的情况下,横向最小冲击功由890℃淬火+630℃回火的35 J提高到820℃+630℃回火的66 J。27MnCrV钢最佳热处理工艺为830℃±10℃水淬+630℃回火空冷,其屈服强度847~860 MPa,抗拉强度922~930 MPa,横向冲击功57~66 J,满足标准要求。

关键词: 27MnCrV钢, 石油套管, 淬火温度, 冲击韧性

Abstract: The effect of quenching at 890 ~ 780 °C on transverse impact energy of steel 27MnCrV (% : 0. 24C - 0. 30C, 0. 50 ~0. 70Cr, 0. 06 ~0. 10V) for petroleum casing pipe tempered at 630 °C has been tested and studied. Results show that with decreasing the quenching temperature, the transverse*V- notch impact energy increases obviously ; with insuring non-decreasing tensile strength of steel, the minimum transverse impact energy increases to 66 J by quenching at 820 °C + tempering at 630 °C from 35 J by quenching at 890 °C+ tempering at 630 °C. The optimum heat treatment process of steel 27MnCrV is water quenching at 830 °C ± 10°C + tempering at 630 °C air cooling, its tensile strength is 847 〜860 MPa, Yield strength is 922 -930 MPa and impact energy is 57 ~66 J to meet the requirement of standard.

Key words: Steel 27MnCrV, Petroleum Casing Pipe, Quenching Temperature, Impact Toughness