Wear-resistant and corrosion-resistant welded pipe and preparation method thereof

The invention relates to the technical field of welded pipes, and discloses a wear-resistant and corrosion-resistant welded pipe and a preparation method thereof.The wear-resistant and corrosion-resistant welded pipe is composed of, by mass, 0.08%-0.16% of C, 2%-6% of Mn, 0.8%-1.2% of Si, 0.05%-0.10% of Ta, 0.06%-0.12% of Mo, 0.22%-0.28% of W, 5.0%-8.0% of Cr, 8.4%-12.6% of Co, 16%-20% of Ni, 0.08%-0.20% of Ti, 0.06%-0.12% of Nb, 0.38%-0.48% of Cu, 2%-5% of Al, 0.4%-1.2% of B, 1.8%-3.0% of N, 0.012%-0.02% of Hf, 0.006%-0.008% of Sc The wear resistance and corrosion resistance of the welded pipe body are improved by adding various alloy elements and forming a synergistic effect, the wear resistance, corrosion resistance and other properties of the welded pipe are further improved by covering the surface of the welded pipe body with the coating, and the production and preparation process is simple and suitable for large-scale production. 本发明涉及焊管技术领域，公开了一种耐磨耐腐蚀焊管及其制备方法，由如下质量百分比的组分组成：C：0.08～0.16％，Mn：2～6％，Si：0.8～1