Stainless classified by the matrix into a ferritic stainless steel. Chromium 12% to 30%. Its corrosion resistance, toughness and weldability with the increase of chromium content increased resistance to chloride stress corrosion better than other types of stainless steel. 2, austenitic stainless steel. More than 18% chromium, it also contains about 8% nickel and a small amount of molybdenum, titanium, nitrogen and other elements. Good overall performance, corrosion resistant variety of media. 3, austenitic - ferritic duplex stainless steel. The advantages of both austenitic and ferritic stainless steel, and has superplasticity. 4, martensitic stainless steel. Custom high strength stainless steel chairs, but poor ductility and weldability. Stainless steel surface treatment coloring coloring coloring chemical, electrochemical coloring temperature oxidation, gas lysis method and ion deposition method in 1972 by the British proposed INCO Europe Ltd. is an acidic aqueous solution coloring dipping stainless steel tables and chairs pictures, Also known as the acid oxidation. The method is a stainless steel immersion polished 8O ~ 90 ℃ a mixture of sulfuric acid, chromic anhydride, change with time, the oxide film formed on the surface of different thickness, due to the interference of light to produce different colors. INCO coloring process: a pre-treatment wash a coloring a subdural processing a finished washing a dry one. Tone changes: one gold and one black and one red and one blue-green. Stainless steel chairs dedicated power plant, Arts Yiu stainless steel (certified), stainless steel tables and chairs provided by the Chongqing Yao Yi Stainless Steel Products Co., Ltd .. Stainless Steel Products Co., Ltd. Chongqing Yi Yao (www.shudumy.com) is Chongqing Municipality, stainless steel and products of leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Yao Yi leader in stainless steel with the staff warmly welcome all inquiries to discuss and create art Yiu stainless steel a better future.