With the sixth large-scale railway speed-up. the quality of the axles is essential to the safety of the locomotive. According to the high-speed axle technical standard for the control of alloy elements in axle steel. optimization experiments of 25CrMo steel composition were performed by vacuum inductive melting. https://www.chiggate.com/color-charm-6r-red-terra-cotta-1-4oz-supply/