对国内外标准碳钢管道在低温环境应用的差异性分析
Analysis on the differences between domestic and international standards for the application of carbon steel materials in lowtemperature services
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- 引用格式:
-
鲜宁,荣明,冯敏.对国内外标准碳钢管道在低温环境应用的差异性分析[J].天然气与石油,2021,39(6):114-120.doi:10.3969/j.issn.1006-5539.2021.06.018
XIAN Ning, RONG Ming, FENG Min.Analysis on the differences between domestic and international standards for the application of carbon steel materials in lowtemperature services[J].Natural Gas and Oil,2021,39(6):114-120.doi:10.3969/j.issn.1006-5539.2021.06.018
- DOI:
- 10.3969/j.issn.1006-5539.2021.06.018
- 作者:
- 鲜宁1,2 荣明2 冯敏3
XIAN Ning1,2, RONG Ming2, FENG Min3
- 作者单位:
- 1. 中国石油集团管力学与环境重点实验室四川分室, 四川 成都 610041; 2. 中国石油工程建设有限公司西南分公司, 四川 成都 610041; 3. 中国石油广东石化公司， 广东 揭阳 515200
1. Sichuan Branch, Key Laboratory of Pipeline Mechanics and Environment, CNPC, Chengdu, Sichuan, 610041, China; 2. CPECC Southwest Company, Chengdu, Sichuan, 610041, China; 3. PetroChina Guangdong Petrochemical Company, Jieyang, Guangdoung, 515200, China
- 关键词:
- 碳钢;冲击试验;韧性;应力比;低温低应力
Carbon steel; Impact test; Toughness; Stress ratio; Low temperature and low stress
- 摘要:
- 随着油气田海外市场的不断开发,国际标准的使用日趋频繁,掌握国内外标准中对材料要求的差异十分重要。在工程设计中,防止材料在低温条件下的脆性断裂是材料选择的重要环节,特别是碳钢材料，但国内外标准对于碳钢材料的温度使用限制存在差异,有必要针对碳钢材料在低温环境应用进行对标分析。对工程设计中常用的碳钢材料在标准中的冲击试验要求和设计规范中的最低使用温度进行总结,对GB/T
20801.2—2020《压力管道规范工业管道第2部分材料》和ASME
B31.3—2018《工艺管道》中碳钢材料的冲击韧性要求进行对比分析,对两个设计规范中低温低应力要求的差异性进行了详细的分析研究。根据碳钢材料在低温环境下的性能认识,对拟用于低温环境下的碳钢材料提出一些建议。
With the continuous development of overseas markets for oil and gas fields, domestic and international cooperation is increasing and the use of international standards is becoming more frequent. Therefore it is important to grasp the differences in material requirements between Chinese domestic standards and international standards. During engineering design, preventing the brittle fracture of the material under low temperature condition is an important part of material selection, especially carbon steel material. However, the temperature limitations of carbon steel are different between the domestic standards/codes and the international standards/codes. Therefore, it is necessary to perform analysis for application of carbon steel materials in low-temperature environment based on different codes and standards requirements. This article summarises the impact test requirements of the carbon steel commonly used in engineering in the material standards and the minimum service temperature in the design codes. The impact toughness requirements of carbon steel were compared in accordance to the requirements in GB/T 20801.2—2020 Pressure Piping Code-Industrial Piping-Part 2:Materials and ASME B31.3—2018 Process Piping. The different requirements between the two codes on carbon steel used under low temperature and low pipe stress conditions have been thoroughly studied. Based on the understanding of performance of carbon steel material in low-temperature environment, this paper gives some suggestion on carbon steel to be used in low temperature services.
