Low-alloy special axle seamless steel tube and preparation method thereof

• Main Authors: SUN WENXIU, WANG YANAN, YAO XIAOLE
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a low-alloy special axle seamless steel tube and a preparation method thereof, and belongs to the field of metallurgical materials. The low-alloy special axle seamless steel tube comprises the following chemical components of, in percentage by mass, 0.14%-0.17% of C, 0.20%-0.35% of Si, 1.45%-1.60% of Mn, less than or equal to 0.018% of P, less than or equal to 0.008% of S,0.01%-0.02% of Ti, 0.04%-0.08% of V, and the balance Fe and inevitable impurities. The prepared low-alloy special axle seamless steel tube has excellent mechanical properties and is low in cost, easyto produce and high in efficiency. 本发明公开了一种低合金专用车桥无缝钢管及其制备方法，属于冶金材料领域。该低合金专用车桥无缝钢管的化学成分按照质量百分比计为：C 0.14～0.17；Si 0.20～0.35；Mn 1.45～1.60；P≤0.018；S≤0.008；Ti 0.01～0.02；V 0.04～0.08，其余为Fe和不可避免的杂质。制备得到的低合金专用车桥无缝钢管具有优异的力学性能，且成本低、易生产，效率高。