What is stainless steel flange chemical polishing?

The chemical polishing of stainless steel flanges is achieved by the regular dissolution of the flange surface to achieve a smooth and smooth finish.

In the chemical polishing process,the passivation oxide film and the oxide film are continuously formed on the surface of the steel stainless steel flange, and the former is stronger than the latter.Due to the microscopic inconsistency of the surface of the stainless steel flange, the microscopic convex portion of the surface is preferentially dissolved, and the dissolution rate is greater than the dissolution rate of the concave portion;

Stainless steel SS316 weld neck flanges and slip on flanges

Moreover,the dissolution of the film and the formation of the film are always performed at the same time, but the rate is different, and as a result, the surface roughness of the steel stainless steel flange is leveled, thereby obtaining a smooth and bright surface. Polishing can fill surface pores, scratches and other surface defects, thereby increasing fatigue resistance and corrosion resistance.

ANSI B16.5 ASTM A182 F304 forged blind flanges

Haihao Group supply all types stainless steel flanges such as weld neck flange,slip on flange,blind flange,threaded flange,plate flange(plain flange),spectacle blind flange,orifice flange,socket weld flange,lap joint flange(loose flange),long weld neck flange,reducing flange,rolled forging ring flange,flange olet,tube sheet,anchor flange,non standard flange(custom flange).The materials are ASTM A182 F304,F304L,F316,F316L,F321,F347,F310,F44,F51 etc.If you want to know more about our flange products,please email us:sales@haihaogroup.com