A hard-facing pipe is a specialized pipeline product, which applies a layer of high-hardness, wear-resistant alloy material by hard-facing process to the inner or outer surface of a common steel pipe.

This process imparts exceptional wear resistance to the pipeline surface, capable of withstanding erosion from various abrasive mediums, thereby extending the pipeline's service life. Weld overlay wear-resistant pipelines are widely used in industries such as power, steel, cement, papermaking, mining, and coal processing, particularly in scenarios where abrasive materials need to be transported.