300 300 square steel pipe due to the production process is simple and low cost that is widely used in door and window hardware

Published by: fakai on 11th Sep 2014 | View all blogs by fakai
Using aluminum close to potential of corrosion resistance of materials or the use of better materials is one of the best choices, such as made in aluminum alloy handle, hinge, and various connectors. The same metal combo is the ideal design of avoidance since my battery. But there are many parts because of strength or difficulty of reason, not easy to use of aluminum and aluminum alloy, good corrosion resistance of stainless steel is one of the preferred materials. 300 300 square steel pipe has rust as long as steel in the Cr is greater than 12. But a single element in steel containing Cr in stainless steel, the corrosion performance is not very good, or rust. Only steel containing titanium, stable carbides, has a high resistance to corrosion.

Good corrosion resistance of Ppgi prepainted galvanized steel coil is generally in steel containing chromium, nickel, titanium and other elements, which is in itself a complex cell structure, and good chemical stability. In a lot of acid, alkali, salt solutions, organic acids, steam, and moist air in the high corrosion resistance, stainless will reduce or avoid causing galvanic corrosion harmfulness to profiles. Zinc alloy susceptible to corrosion in acid, alkali, salt solutions, just in the atmosphere surface passivation and antioxidant properties.

 Zinc alloy pieces of surface General used metal plated film or non-metallic coated film, Schedule 40 black steel pipe typical of processing process including zinc alloy passivation processing, and plated zinc passivation, and coated paint, and spray plastic powder,, which former of wear sex good, passivation film has must of acid alkali performance, can extended parts of resistance corrosion time; which is non-metal film layer, has better of insulated sex, can avoid appeared electric occasionally corrosion. Currently on the market have a surface one by one, Pearl chrome plating. Pearl chrome coating has high hardness and good resistance to abrasion and corrosion resistance of stainless, looks nice, generous, beautiful. No matter from the perspective of corrosion or the choices from the appearance point of view, Pearl chrome is currently the best aluminum Windows and doors with hardware surface treatment methods.



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