API 5L (X60, X65, X70, X80) Line Steel Pipe

The surface for cold rolled stainless steel sheets is variety and there are BA, 2B, mirror, 8K and other surface treatment according to clients’ requirements. We can do different surface treatment for processing, and also we can cut the SS sheets into small pieces for clients to do mechanical processing themselves.

Corrosion conditions of stainless steel sheet
1. The deposited on the surface of the stainless steel contain other metal elements of attachments, or heterogeneous metal particles of dust in the damp air, attachments and stainless steel, the condensed water between the both together as a micro battery, triggers the electrochemical reaction, protective film is damaged, to call the electrochemical corrosion.
2. The stainless steel surface adhesion organic fluids (such as melon seeds, noodle soup, sputum, etc.), under the condition of water is oxygen, organic acid, organic acid to for a long time and are on the surface of the metal corrosion.
3. The stainless steel surface adhesion containing acid, alkali, salt substances (e.g., decorate the walls of caustic soda and lime water splash), cause local corrosion.
4. Where there is pollution in the air (e.g., contains a lot of sulfur, carbon oxide, atmospheric nitrous oxide), encounter condensed water, formation of sulfuric acid, nitric acid, acetic acid, liquid, chemical corrosion caused by the above situation can be caused by the destruction of the stainless steel surface protective film cause corrosion.
Corrosion resistant
The corrosion resistance of the stainless steel sheet mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal organizational structure, is a chromium element plays the leading role. Chromium has the very high chemical stability, can be formed in the steel surface passivation membrane, metal and isolated, protect steel from oxidation, increase the corrosion resistance of stainless steel sheet. After passivation membrane damage, corrosion resistance is decreased.