The following factors having effect on pipe toughness are analysed: line pipe strength and design level, pipe thickness and diameter, medium transported, locations in pipe environmental impact, etc.
管道韧性设计受多方面因素的影响，分别分析了管道钢的强度及设计水平、管壁厚度、管径、输送介质、钢管的不同部位、环境条件等相关的影响因素。
Very high heat resistance with medium impact and good strength properties.
非常中等强度的影响和良好的耐热性能高。
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