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首页> 外文期刊>JFE technical report >High Cr Stainless Steel OCTG with High Strength and Superior Corrosion Resistance
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High Cr Stainless Steel OCTG with High Strength and Superior Corrosion Resistance

机译：高强度，高耐腐蚀性的高铬不锈钢OCTG

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摘要

New martensitic stainless steel pipes (HP13Cr, UHP15Cr) which improve the CO_2 corrosion resistance and sulfide stress corrosion (SSC) resistance of API-13Cr were developed and their application limits were clarified. The composition of the products features low C and addition of Ni and Mo. CO_2 corrosion resistance was greatly improved by adopting a high Cr, low C composition design, while SSC resistance was substantially improved by Mo addition. The critical temperature for HP13Cr in high CO_2 environments is 160℃. UHP15Cr has high strength, with Yield strength (YS) exceeding 861 MPa, and can be used in high CO_2 environments at temperatures up to 200℃. These new martensitic steel pipes show excellent properties in sweet, high temperature, high CO_2 environments and slightly sour environments containing small amounts of H_2S where conventional 13Cr pipes could not be used.
机译：研制出能提高API-13Cr的抗CO_2腐蚀性能和抗硫化物应力腐蚀（SSC）性能的新型马氏体不锈钢管（HP13Cr，UHP15Cr），并阐明了其应用范围。该产品的成分具有低C以及添加Ni和Mo的特点。采用高Cr，低C组成的设计大大提高了CO_2的耐腐蚀性，而Mo的添加大大提高了SSC的耐腐蚀性。高CO_2环境中HP13Cr的临界温度为160℃。 UHP15Cr具有很高的强度，屈服强度（YS）超过861 MPa，可在温度高达200℃的高CO_2环境中使用。这些新的马氏体钢管在甜，高温，高CO_2环境和含少量H_2S的微酸环境中显示出优异的性能，而传统的13Cr管无法使用。

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