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Stainless Steel Flanges

Method for cleaning stainless steel lap joint stub end

The pickling process of stainless steel lap joint stub end is an important process step of stainless steel pipe fittings, and that a lot of people ask, stainless steel flange itself will not rust, why pickling for it?

Actually the process of pickling of stainless steel flange, a is to go out to bend in the machining process produced by high temperature oxide skin, let the edge of stainless steel products is bright and clean, beautiful; 2 it is to make the surface of the stainless steel to generate a compact oxidation film, thus further protection in the later use process, prevent them from rusting again.

The pickling of stainless steel lap joint stub end is often linked with passivation, generally need must be passivation pickling of stainless steel, because of no formation on the surface passivation film after pickling or form passivation film thickness is very thin, not going to work, must increase subsequent passivation process, the formation and improvement of passivation film on stainless steel surface.

Source: China Pipe Fitting Manufacturer – Yaang Pipe Industry Co., Limited (www.yaang.com)

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