| X80钢专用高强度高韧性焊丝研制 |
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| 引用本文： | 毕宗岳,金时麟,牛辉,陈延清. X80钢专用高强度高韧性焊丝研制[J]. 焊管, 2009, 32(2): 23-26 |
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| 作者姓名： | 毕宗岳 金时麟 牛辉 陈延清 |
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| 作者单位： | 西安理工大学,材料科学与工程学院,西安,710048;宝鸡石油钢管有限责任公司,焊管研究所,陕西,宝鸡,721008;宝鸡石油钢管有限责任公司,焊管研究所,陕西,宝鸡,721008;首钢技术研究院,北京,100041 |
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| 摘 要： | 西气东输二线工程采用X80级钢材,屈服强度在550MPa以上。为了实现钢管埋弧焊缝的高强度高韧性匹配,研究开发了X80钢专用H80焊丝,该焊丝匹配BG—SJ101 H1焊剂,熔敷金属屈服强度625MPa,抗拉强度660MPa,-40℃冲击功102J,具有较好的强韧性;在X80级厚壁管线钢焊接速度为1．7m／min时,焊接接头的抗拉强度达670MPa以上,-20℃冲击功平均值178J;焊缝的弯曲、硬度等试验结果均达到API SPEC 5L及西气东输二线X80级钢管标准要求。
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| 关 键 词： | X80钢级 高强度 高韧性 埋弧焊丝 |
Research on X80 Grade Welding Wire with High Strength and High Toughness |
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| BI Zong-yue,JIN Shi-lin,NIU Hui,CHEN Yan-qing. Research on X80 Grade Welding Wire with High Strength and High Toughness[J]. Welded Pipe and Tube, 2009, 32(2): 23-26 |
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| Authors: | BI Zong-yue JIN Shi-lin NIU Hui CHEN Yan-qing |
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| Affiliation: | BI Zong-yue, JIN Shi-lin , NIU Hui , CHEN Yan-qing ( 1. Institute of Material and Engineering,Xi ＇ an University of Technology,Xi＇ an 710048, China ; 2. Welded Pipe Research Institute, Baofi Petroleum Steel Pipe Co., Ltd., Baoji 721008, Shaanxi , China ; 3. Research Institute of Shoudou Steel Pipe Company, Beijing 100041, China ) |
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| Abstract: | X80 grade steel was used in the Second West to East Gas Pipeline Project, and its yield strength was above 550 MPa. In order to realize high strength and high toughness in weld of SSAW pipe, H80 welding wire matched with X80 grade steel was developed. This kind of welding wire matched with BG - SJI01 H1 welding flux, its fusion yield strength was 625 MPa,Tensile strength was 660 MPa, impact energy was 102 J （ at -40 ℃ ） , and with better tough- ness. Tensile strength of welding jointer achieved above 670 MPa, average impact energy 178 J （at -20 ℃） under X80 heavy thickness pipeline steel with welding speed at 1.7 m/min. The test results of weld bend and hardness had arrived the requirements of API SPEC 5L standard and the specification of Second West to East Gas Pipeline Project for X80 grade steel pipe. |
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| Keywords: | X80 grade high strength high toughness submerged arc welding wire |
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