| HSL450S海底管线管钢的开发 |
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| 引用本文： | 肖鸿光,贺道中.HSL450S海底管线管钢的开发[J].特殊钢,2007,28(6):63-64. |
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| 作者姓名： | 肖鸿光 贺道中 |
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| 作者单位： | 1衡阳华菱钢管(集团)技术中心，衡阳421001;
2湖南工业大学冶金校区，株洲412000 |
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| 摘 要： | 通过90t EBT电弧炉-100 t LF+VD-喂丝-Φ20mm CC流程开发了Nb-Ti微合金化海底管线管钢HSL450S(%:0.06C、0.40Cr、0.15Mo、0.02Ti、0.05Nb)。经30炉分析得出,O]为35.2×10-6,N]为78.8×10-6。该钢的组织为回火贝氏体-珠光体+多边形铁素体。轧制的Φ102mm×14mm和Φ168.3mm×8.7mm HSL450S钢管的晶粒度为10～11级,机械性能满足海底管线管X60、X65钢级标准要求。
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| 关 键 词： | EAF-LF+VD Nb-Ti微合金化 海底管线管钢 开发 |
| 收稿时间： | 2007-06-18 |
| 修稿时间： | 2007-06-18 |
Development of Undersea Linepipe Steel HSL450S |
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| Xiao Hong-guang,He Dao-zhong.Development of Undersea Linepipe Steel HSL450S[J].Special Steel,2007,28(6):63-64. |
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| Authors: | Xiao Hong-guang He Dao-zhong |
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| Affiliation: | 1TechnologyCenter，HengyangHualingSteelTube(Group)Co Lad,Hengyang421001;
2 Metallurgical School,Hunan University of Technology,Zhuzhou 412000 |
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| Abstract: | The Nb-Ti microalloying undersea linepipe steel HSL450S(0.06C,0.40Cr,0. 15Mo,0.02Ti,0.05Nb) has been developed by 90 t EBT arc funace- 100tLF+VD-wire feeding - Φ220 mm CC flow sheet.It was obtained by analyzing 30 heats that O] was 35.2×10-6 and N] was78.8×10-6.The structure of steel was tempered bainite-pearlite + polygonal ferrite. The mechanical properties of Φ102 mm×14 mm and Φ168.3 mm×8.7 mm tube of steel HSL450S with grain size rating 10～11 met the requirement of standard of for undersea linepipe steel X60 and X65 grade. |
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| Keywords: | EAF-LF VD |
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