The present invention relates to an element (2) for guiding and bearing support for a railway vehicle, characterized in that at least one portion positioned in the upper part of the element and producing the running surface is made with a steel (1) whose composition comprises, in addition to the Fe: - 0.15 = C = 0.3%, - 1 = Mn = 2%, - 0.2% = Ni = 1%, - 0.5 = Cr = 2%, the steel (1) having been heat-treated quenched and controlled speed and duration to obtain a mixed structure of martensite revenue and bainite and residual austenite.
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机译：本发明涉及一种用于对铁路车辆进行引导和轴承支撑的元件（2），其特征在于，位于该元件的上部并产生行驶面的至少一部分由钢（1）制成，该钢的成分除铁之外，还包括：-0.15 = C = 0.3％，-1 = Mn = 2％，-0.2％= Ni = 1％，-0.5 = Cr = 2％，钢（1）已加热-进行淬火处理，并控制其速度和持续时间，以获得马氏体收入，贝氏体和残余奥氏体的混合结构。
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