... fly ash,mine dust,metallurgy slag ,clinker,sand, limestone and concrete,etc. Abrasion Resistant PipeSHS-self-propagating ceramic composite ... 15 times higher than common steel pipe, smooth inner surface, and favorable liquor resistance. . Features: High abrasion resistant: Vickers ... HV1100 to1500, as high as that of tungsten-cobalthard alloys, and the abrasion resistance is 20 times as carbon steel ...