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| Manufacture and Research of Extra-Thickness Plate Used for Deep-Sea Oil Drilling Platform |
| TANG Wei-hong |
| Hunan Hualing Xiangtan Iron and Steel Co., Xiangtan 411101, Hunan, China |
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Abstract A high strength and toughness deep-sea oil drilling platform structure steel XG D36-Z35 (80～100 mm)was developed by a series of advanced technologies such as multi-micro alloy compound design, LF+VD refining, casting, TMCP rolling and normalizing heat treatment. The results show the steel has good metallurgical quality, high mechanical properties, which can meet the requirements of consumers. The qualified ratio of ultrasonic flaw detection attained 99.8%, the yield strength and tensile strength were more than 365 and 515 MPa respectively, and extensibility was more than 30.5%; Moreover, thickness directional section shrinkage also was more than 39.2%; and under -20 ℃, the 1/4 and 1/2 impact energy on different positions was more than 79 and 81 J respectively.
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Received: 13 December 2011
Published: 22 May 2012
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YIN Chao-chao, ZHANG Li-qin, HU Feng, ZHOU Song-bo, ZHOU Wen, WU Kai-ming. Effect of martensite substructure on strength and toughness at surface of F690 ultra thick plate[J]. Iron and Steel, 2021, 56(7): 129-138. |
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WANG Xiao-yong1,PAN Tao1,WANG Hua2,LI Yun2,SU Hang1,LI Xiang-yang3. Effect of Quench Process on Mechanical Properties of the Center of the Ni-Cr-Mo-B Ultra-Thick Steel Plate[J]. Iron and Steel, 2012, 47(6): 79-83. |
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HE Hang,LIU Yong-long,DING Jin-hu,TANG Li-min. Process Research on Producing High Quality Slabs for Milling Extra-Thick Plates[J]. Iron and Steel, 2011, 46(11): 41-44. |
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吴国胜 WU Guo-Sheng. 8Cr4MoV Low Alloyed Forged Super-Deep Hardening Layer Cold Work Roll Trial-Manufacture and Application[J]. Iron and Steel, 2010, 45(11): 72-72. |
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2012, Vol. 31 
