Mechanical properties as well as crack resistance and stress corrosion cracking (SCC) resistance parameters of ultralow-carbon martensite steels (ULMS) type 05H2G2B and HSLA pipe steel 10G2FB with a different structures depending on processing are investigated. It is shown that despite a higher strength level, SCC resistance of ULMS steel is 25–30% higher than for HSLA steel with ferrite-perlite structure and close to that for this steel subjected to quenching and tempering.

中文翻译：

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结构状态对超低碳马氏体和低合金管钢应力腐蚀开裂趋势的影响

研究了05H2G2B型超低碳马氏体钢和10G2FB型不同结构的超低碳马氏体钢（ULMS）的力学性能以及抗裂性和抗应力腐蚀开裂（SCC）的参数，具体取决于工艺。结果表明，尽管强度较高，但ULMS钢的抗SCC性能比具有铁素体-珍珠岩结构的HSLA钢高25-30％，并且与经过淬火和回火处理的钢相近。