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Pickling paste used to remove the black oxide marks of burn seal left during welding of Stainless Steel. Also pickling chemical descaling is typically used to remove oxide layers resulting from welding heat trating and other high temperature operation. All of these oxide layers rust a spot are generally referred to as ‘scale’ and must be […]

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Passivating is the chemical treatment of a stainless steel surface with a mild oxidant such as a citric acid and nitric acid base solution, this is typically done to remove any free iron from the surface of the metal, which enhances the corrosion resistance of the stainless steel surface and accelerates the re-formation of the passive […]

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