英国工程钢公司和Volvo公司联合开发了一种VolvoFH12/16系列大型货车同步齿轮系齿轮箱中用的新钢种。Volvo公司要求该钢种在提高钢的强度和耐磨性的前提下不增加钢部件的体积、重量及生产成本。该钢的成分是1.2％Mn、1.2％Cr、10％Ni以及少量的Mo和C。它是渗碳钢2525类中的一部分,具有优异的心部硬度水平。这种钢可用于FH系列汽车的发动机纵列式齿轮箱装置中直径为99mm的输入轴。 British engineering steel company and Volvo company jointly developed a new type of gear used in the gearbox of a large-scale VolvoFH12 / 16 series large truck synchronous gearbox. Volvo requires that the steel does not increase the volume, weight and production costs of steel components while increasing the strength and wear resistance of the steel. The composition of the steel is 1.2% Mn, 1.2% Cr, 10% Ni and a small amount of Mo and C. It is part of the Class 2525 carburizing steels with excellent core hardness. This steel can be used in FH series car engine column gear box device diameter of 99mm input shaft.