Steel Pipes and Tubes with small internal diameters and sections (I.D. 50-200mm) are manufactured with hardfacing structures internally 60-65HRC, to protect their body from abrasion or erosion wear as a result of hard particles transportation (cement, sand, steel powders).
Complicated geometries & sections with internal hardfacing and protective coatings offer the best solution in wear problems extending their life time 5-10 more than the common steel constructions. The final result is the significant reduction of maintenance & production cost.
