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  During the fabrication and assembly of steel pipe and pipe components, the surface undergoes many mechanical and thermal treatments. This leads to damage and contamination of the protective scale, which leads to a loss of corrosion resistance and, as a result, the substrate will corrode more quickly. In this case, pickling and passivization are required to remove these surface impurities and form a protective layer against corrosion.

  OASIS attaches great importance to these two processes. Pickling can eliminate stains, rust, and other impurities on the surface of steel pipes, especially removing the heat-stained layer of welded joints. Passivization, on the other hand, removes free iron and generates a dense oxide protective layer.Through pickling and passivization, not only can impurities be removed and steel be protected, but also the surface quality of steel pipes can be enhanced and their service life extended.

  OASIS provides high-quality steel pipe products to global customers and has won wide recognition across various industries.