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对ASTM4137钢生产和试验数据的分析研究得出影响ASTM4137钢材横向低温冲击韧性的因素为硫、铝、钛等杂质元素，硫含量偏高是导致横向低温冲击韧性偏低的主要原因。
The analysis of ASTM4137 steel production and test data shows that the factors affecting the transverse low temperature impact toughness of ASTM4137 are sulfur, aluminum, titanium and other impurity elements. The high sulfur content is the main reason for the low lateral ductility impact toughness.