非调质钢N80 Φ139.7 mm×9.17 mm石油套管的研制

特殊钢 ›› 2020, Vol. 41 ›› Issue (4): 19-21.

非调质钢N80 Φ139.7 mm×9.17 mm石油套管的研制

胡楚江^1,2, 邓叙燕^1,2, 潘恩宝^1,2，程凯^1,2

1达力普石油专用管有限公司技术中心，沧州061000,
2河北省石油专用管技术创新中心，沧州061000

收稿日期:2019-12-28 出版日期:2020-08-01 发布日期:2022-04-27
作者简介:胡楚江(1972-),男，工程师,1997 年武汉科技大学(本科)毕业，冶炼工艺研究和新产品研发。

Research and Prodution on Non-Queched-Tempered Steel N80 Φ139.7 mm x 9.17 mm Oil Casing Tube

Hu Chujiang^1,2, Deng Xuyan^1,2, Pan Enbao^1,2, Cheng Kai^1,2

1 R&D center Dalipal OCTG Co Ltd, Cangzhou 061000；
2 Hebei Provience OCTG Engineering Tecnology Research Center, Cangzhou 061000

Received:2019-12-28 Published:2020-08-01 Online:2022-04-27

摘要/Abstract

摘要： 根据C、Mn、V、N、Ti在微合金化非调质钢中作用,设计了石油套管用非调质N80钢的化学成分;依据实验室炉正火实验数据确定在线正火轧制工艺参数,研制的139.7 mm×9.17 mm非调质N80钢石油套管的组织为铁素体+珠光体组织,屈服强度575～638 MPa,抗拉强度789～840 MPa,伸长率21%～23%,0℃3/4尺寸冲击功39～87J,完全满足API Spec 5CT《油套管规范》(第十版,2018)标准的要求。

Abstract: According to the effect of C, Mn, V, N and Ti in non-quenched-tempered microalloyed steel, the chemical composition of non-quenched-tempered steel N80 oil casing tube is designed. Based on lab furnace normalizing test data, the on-line normalizing rolling process parameters are determined. The microstructure of the non-quenched and tempered N80 steel 139.7 mm x9.17 mm oil casing tube is ferrite + pearlite with the yield strength 575 ~638 MPa, tensile strength 789 ~840 MPa, elongation 21% -23% and 3/4 size impact energy at 0℃ being 39 ~87 J fully to meet the requirements of API Spec 5CT (10th Edition ,2018).

胡楚江, 邓叙燕, 潘恩宝, 程凯. 非调质钢N80 Φ139.7 mm×9.17 mm石油套管的研制[J]. 特殊钢, 2020, 41(4): 19-21.

Hu Chujiang, Deng Xuyan, Pan Enbao, Cheng Kai, . Research and Prodution on Non-Queched-Tempered Steel N80 Φ139.7 mm x 9.17 mm Oil Casing Tube[J]. Special Steel, 2020, 41(4): 19-21.