In layman's terms, steel, stainless steel is not easy to rust is actually part of Welding Electrode, both stainless steel, and acid resistance (corrosion resistance). Stainless steel and corrosion resistance of stainless steel is due to the formation of chromium-rich oxide film on its surface (passivation film). This stainless steel and corrosion resistance is relative. The tests showed that the steel in the air, water and other weak medium and nitric oxide medium, the corrosion resistance increased with the increase of chromium content in the steel, when the chromium content up to a certain percentage of the steel corrosion resistance mutation rust from easy to easy to rust, never corrosion resistance to corrosion. The classification of stainless steel. Classification of the organizational structure at room temperature, martensitic, austenitic, ferritic and duplex stainless steel, chromium stainless steel and chrome-nickel stainless steel, two systems can basically be divided; by major chemical composition; according to the zoning There are stainless steel resistant to nitric acid, resistance to sulfuric acid stainless steel and seawater-resistant Stainless Steel Electrodeï¼Œ corrosion resistant types of points can be divided into the pitting resistance of stainless steel, stress corrosion resistance of stainless steel, the resistance to intergranular corrosion of stainless steel; classified according to functional characteristics can be divided into non-magnetic stainless steel, free cutting steel, low-temperature stainless steel, high strength stainless steel, and so on. Because stainless steel has excellent corrosion resistance, formability, compatibility, as well as strength and toughness in a wide temperature range, such as a series of characteristics, access to widely used in heavy industry, light industry, daily industry as well as architectural decoration industry . ,
Tangshan Iron and Welding Wires products for the first time to enter the EMU manufacturing awarded the successful China CNR [3.81 1.87% shares it research report] Group "tailored" new varieties of high-strength wire steel 60-G has been successfully applied to the motor car front manufacturing, the use of evaluation results. It is reported that the varieties of tons of steel price 1500 yuan higher than ordinary wire products. It is understood that China North Vehicle Group also expressed the hope that the intention of further strengthening cooperation with Tangshan Iron and Steel, the company's railway rolling stock and urban rail vehicles accounted for more than half of the domestic market share.
It is reported that as of November, Tangshan Iron and Steel Company gas welding wire, submerged arc welding wire total sales in 2010 amounted to 33,000 tons, which is 3.7 times that of the previous year. At present, Tangshan Iron and Stainless Steel Welding Wires have been formed series, submerged arc welding wire the wire rods H08MnA, H10Mn2, H10MnSi, EM12K and alloy wire hot rolled of rod ER70S-6, ER70S-3 and other uniform chemical composition, good mechanical properties, and overall product quality of domestic first-class level.