Development and Application of φ457 mm x 25.4 mm Large Size X65QO Seamless Steel Tube for Deep Subsea
特殊钢2021年42卷第5期 页码:41-45
作者机构:
1. 中海石油(中国有限公司)海南分公司,海口,570311
2. 湖南衡阳华菱钢管(集团)有限公司技术中心,衡阳,421001
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基金信息:
DOI:
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收稿:2021-01-27,
网络首发:2023-02-03,
纸质出版:2021-02-03
稿件说明:
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熊刚, 夏文斌, 李端正, 等. X65QO φ457 mm x 25.4 mm大口径深海海底无缝钢管的开发和应用[J]. 特殊钢, 2021,42(5):41-45.
熊刚, 夏文斌, 李端正, et al. Development and Application of φ457 mm x 25.4 mm Large Size X65QO Seamless Steel Tube for Deep Subsea[J]. Special Steel, 2021, 42(5): 41-45.
熊刚, 夏文斌, 李端正, 等. X65QO φ457 mm x 25.4 mm大口径深海海底无缝钢管的开发和应用[J]. 特殊钢, 2021,42(5):41-45.DOI:
熊刚, 夏文斌, 李端正, et al. Development and Application of φ457 mm x 25.4 mm Large Size X65QO Seamless Steel Tube for Deep Subsea[J]. Special Steel, 2021, 42(5): 41-45.DOI:
The composition and process flowsheet of deep water oilfield large size deep subsea pipeline steel have been designed and developed. The experimental batch results of X65QO steel seamless tube show that: through the optimization of micro alloy composition (/% :0.15Mo
0.04Nb
0.09V
0.06Ti)
pilger tube rolling process
combined with 930 °C quenching and 670 °C tempering process
the yield strength of X65QO steel grade seamless steel tube for deep sea is ~500 MPa
the tensile strength is ~ 580 MPa
and the low temperature impact at -30°C is more than 300J
the CTOD ( Crack Tip Opening Displacement)
welding properties and HIC (Hyrogen-Induced Cracking) properties are good