| 低应变时效敏感性焊管用特厚板S355NL-Z35的开发研究 |
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| 引用本文： | 唐郑磊,许少普,张红伟,杨东,朱成杰,庞百鸣.低应变时效敏感性焊管用特厚板S355NL-Z35的开发研究[J].中国冶金,2011,21(12):35-38. |
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| 作者姓名： | 唐郑磊 许少普 张红伟 杨东 朱成杰 庞百鸣 |
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| 作者单位： | 南阳汉冶特钢有限公司钢铁研究所，河南 南阳 474500 |
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| 摘 要： | 针对88.5 mm厚度S355NL-Z35厚壁焊管用特厚板，研究了其复合微合金化、控轧控冷和正火热处理相结合的生产工艺，实施了工业试制。试制钢板屈服强度达到350～390 MPa，抗拉强度达到490～525 MPa，伸长率达到26%以上，-40℃常规及应变时效冲击功达到141 J以上，Z向断面收缩率大于35%，探伤达到1级要求，实现了强度、韧性、抗层状撕裂性能、低应变时效敏感性等性能的良好匹配。
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| 关 键 词： | 特厚板 应变时效 S355NL-Z35 抗层状撕裂 微合金化 |
Development of Heavy Plate With Low Strain Aging Sensitivity for S355NL-Z35 |
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| TANG Zheng-lei,XU Shao-pu,ZHANG Hong-wei,YANG Dong,ZHU Cheng-jie,PANG Bai-ming.Development of Heavy Plate With Low Strain Aging Sensitivity for S355NL-Z35[J].China Metallurgy,2011,21(12):35-38. |
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| Authors: | TANG Zheng-lei XU Shao-pu ZHANG Hong-wei YANG Dong ZHU Cheng-jie PANG Bai-ming |
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| Affiliation: | TANG Zheng-lei,XU Shao-pu,ZHANG Hong-wei,YANG Dong,ZHU Cheng-jie,PANG Bai-ming(Nanyang HanYe Special-Steel Ltd.,Nanyang 474550,He'nan,China) |
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| Abstract: | 88.5 mm thickness plate for thick-walled pipe S355NL-Z35 was trial-produced by means of complex microalloying,controlled rolling and cooling and heat treatment.Its yield strength is 350~390 MPa,tensile strength 490~525 MPa,elongation 26%,conventional and aging impact energy at-40 ℃ more than 141 J,reduction in area along Z greater than the 35%,ultrasonic testing Level 1.A good match is realized with the strength,toughness,resistance to lamellar tearing performance,low sensitivity performance of strain aging. |
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| Keywords: | special plate strain aging S355NL-Z35 against lamellar tearing micro-alloying |
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