For the construction process of epoxy, ethylene, phenolic and other anticorrosive coatings commonly used for EN 10297 34CrMo4 seamless steel pipe, it is generally required that the surface of EN 10297 34CrMo4 seamless steel pipe reach near white level (Sa2.5).
The practice shows that the scale, rust and other dirt of EN 10297 34CrMo4 seamless steel pipe can be almost removed by using this kind of rust removal grade, and the depth of anchor pattern can reach 40 ~ 00 μ m, which fully meets the adhesion requirements of anticorrosive coating and EN 10297 34CrMo4 seamless steel pipe, while spray (spray) spray rust removal process can reach the technical conditions of near white grade (Sa2.5) with lower operation cost and stable and reliable quality.
