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管线钢的H2S环境断裂,受环境介质、材质本身以及工艺因素的影响。在环境介质方面,主要是H2S浓度、PH值和温度的影响。H2S浓度愈高,PH值愈低,钢的开裂敏感性便愈大,并且敏感性在室温附近最严重。在材质方面,化学成分、组织结构和力学性能是三个重要的因素。化学成分的影响比较复杂,一般而言,硫、
H2S pipeline steel environment rupture, by the environmental medium, the material itself and the impact of process factors. In environmental media, the main is the influence of H2S concentration, pH and temperature. The higher the concentration of H2S, the lower the pH value, the greater the susceptibility of steel to cracking and the sensitivity is greatest at room temperature. In terms of materials, chemical composition, structure and mechanical properties are three important factors. The chemical composition of the more complex, in general, sulfur,