What are the problems in the processing of stainless steel elbow

Stainless Steel is a metal material Stainless Steel (Stainless Steel) refers to air, steam, water and other weak corrosion medium and acid, alkali, salt and other chemical corrosion medium corrosion of Steel, also known as Stainless acid Steel

. In practical application, the steel with weak corrosion resistance is often called stainless steel, and the steel with chemical corrosion resistance is called acid resistant steel. Due to the difference in chemical composition, the former is not necessarily resistant to chemical medium corrosion, while the latter is generally rust resistant. The corrosion resistance of stainless steel depends on alloying elements contained in the steel

. The basic alloy elements of stainless steel are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the structure and performance of stainless steel. Stainless steel is easy to be corroded by chloride ions, because chromium, nickel, chlorine are isoelements, isoelements will be exchanged and assimilated to form corrosion of stainless steel.

The corrosion resistance of chemical composition stainless steel decreases with the increase of carbon content, therefore, the carbon content of most stainless steel is low, the maximum is not more than 1.2%, some steel Wc (carbon content) even lower than 0.03% (such as 00Cr12). The main alloying element in stainless steel is Cr (Chromium), and only when Cr content reaches a certain value, steel has corrosion resistance. Therefore, stainless steel Cr (chromium) content is generally at least 10.5%. Stainless steel also contains Ni, Ti, Mn, N, Nb, Mo, Si, Cu and other elements used stainless steel is not easy to produce corrosion, pitting, rust or wear. Stainless steel is also one of the strongest metal materials used in construction. Due to its excellent corrosion resistance, stainless steel enables structural components to maintain permanent engineering design integrity. Chromium-containing stainless steel also combines mechanical strength and high extensibility, making it easy to manufacture components and satisfying the needs of architects and structural designers

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