... slag ,sand,and concrete,etc. wear resisting pipe 1. bimetal abrasion resistant steel pipes lined with a layer of high chromium alloy ... wall to be high intensity(HRC 55-62) and highly abrasion resistant layer(1.8mm), and leaves the outer wall with high ... of safety, longer work life, energy saving, continuum, low maintenance. abrasion resistant steel pipe (inner hardened/bimetal/dual wall)