结果表明，本钢X70管线钢具有高强度、高抗动态撕裂能力、高低温冲击韧性以及低韧脆转变温度。
The results indicate that the X70 pipeline steel with acicular ferrite microstructure has high strength, high toughness, low transition temperature and high dynamic tear-resistance.
研究了正火处理对FAS390Q桥壳钢显微组织、强度、冲击韧性和韧脆转变温度的影响。
The effect of normalizing on microstructure, strength, impact toughness and ductile-brittle transition temperature of FAS390Q axle housing steel was studied.
通过对管线钢焊接粗晶区韧性影响因素的分析，提出了管线钢粗晶区的韧化方向。
Through the analysis of elements affecting the rough crystal zone in pipeline steel weld, it raises the flexing direction of rough crystal zone of pipeline steel.
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