本发明提供一种用于高寒地区高速动车组的车轴钢，按重量百分比计，其包含C 0.22‑0.28％，Si 0.15‑0.40％，Mn 0.4‑0.65％，S≤0.005％，P≤0.010％，Cr 1.4‑2.2％，Cu≤0.20％，Mo 0.10‑0.15％，Nb 0.005‑0.014％，RE 0.005‑0.03％，Ni 1.5‑2.0％，Al 0.010‑0.045％，余量为Fe和不可避免的杂质。本发明所述制备用于高寒地区高速动车组的车轴钢的方法，通过合理成分的添加和综合细化技术，改善了所述车轴钢的低温韧性、疲劳性能和淬透性。

The invention provides an axle steel for high-speed EMUs in alpine areas, which comprises c 0.22 ‑ 0.28%, Si 0.15 ‑ 0.40%, Mn 0.4 ‑ 0.65%, s ≤ 0.005%, P ≤ 0.010%, Cr 1.4 ‑ 2.2%, Cu ≤ 0.20%, Mo 0.10 ‑ 0.15%, Nb 0.005 ‑ 0.014%, re 0.005 ‑ 0.03%, Ni 1.5 ‑ 2.0%, Al 0.010 ‑ 0.045%, The remainder is Fe and unavoidable impurities. The method for preparing the axle steel for high-speed EMUs in alpine areas improves the low-temperature toughness, fatigue performance and hardenability of the axle steel through the addition of reasonable components and comprehensive refinement technology.