Main features and uses of austenitic stainless steel S35550 1Cr18Mn10Ni5Mo3N

【Introduction】Austenitic stainless steel S35550 1Cr18Mn10Ni5Mo3N is a special corrosion-resistant austenitic stainless steel. It has a very high corrosion resistance and is used in the manufacture of high-strength and high-temperature resistant objects, such as the tank body and pressure vessel of the chemical industry. 

【Chemical Composition】The mechanical properties and corrosion resistance of 1Cr18Mn10Ni5Mo3N steel are related to its chemical composition. The copper content of this steel is relatively high, not only adding to its toughness, but also increasing the corrosion resistance of seawater and aqueous solution, and various acid- and alkali-resistant media. The characteristic chemical composition of 1Cr18Mn10Ni5Mo3N steel is as follows: C：≤0.09％, Si：≤1.00％, Mn：≤2.00％, P：≤0.035％, S：≤0.030％, Ni：8.00－10.50％, Cr： 17.00－19.00％, Mo：2.00 －3.00％, Cu： ≤0.50％.

【Mechanical Properties】Because of the addition of more alloy elements in the 1Cr18Mn10Ni5Mo3N, the mechanical properties of the steel increase significantly. Among them, the hardness, strength and toughness of 1Cr18Mn10Ni5Mo3N steel are significantly higher, with tensile strength and yield strength all above 600MPa, and the elongation is above 40%. These special mechanical properties make it suitable for extremely corrosive situations.

【Corrosion Resistance】In addition to its special mechanical properties, 1Cr18Mn10Ni5Mo3N steel also has excellent corrosion resistance. Its high chromium content enables it to form a dense chromium oxide film on the surface, making it extremely resistant to a variety of acidic media. The addition of 1Cr18Mn10Ni5Mo3N also increases the corrosion resistance in the air, sea water, and aqueous solutions, which makes 1Cr18Mn10Ni5Mo3N a very versatile corrosion resistant stainless steel.

【Usage】1Cr18Mn10Ni5Mo3N steel is mainly used for the manufacture of pressure vessels and other components requiring high corrosion resistance and high strength.Due to its special mechanical and corrosion resistant properties, 1Cr18Mn10Ni5Mo3N steel can also be used in other areas where corrosion is a major problem, such as petrochemical and paper-making industries, building decoration and engineering construction.

【Conclusion】1Cr18Mn10Ni5Mo3N is a new type of stainless steel with special mechanical and corrosion resistance properties. It has high strength and corrosion resistance and can be used in pressure vessels and other components requiring both strength and corrosion resistance. In view of its mechanical properties and corrosion resistance, 1Cr18Mn10Ni5Mo3N steel can also be used in various industries such as petrochemical, paper-making and engineering construction.

AISI S35550 1Cr18Mn10Ni5Mo3N stainless steel is a nitrogen added austenitic stainless steel. It belongs to the stainless steel 250 series, ultra low carbon and nitrogen-added stainless steel; its characteristics include lower carbon and nitrogen content, better corrosion resistance and enhanced strength.

The main characteristics of AISI S35550 1Cr18Mn10Ni5Mo3N stainless steel are mainly as follows: First, higher strength, due to its ultra-low carbon and nitrogen content and good cold deformation properties, the tensile strength of the curve is higher than that of ordinary austenitic stainless steel; the second is the better corrosion resistance; the third is the higher toughness, good plasticity and resistance strain aging.

The key application of AISI S35550 1Cr18Mn10Ni5Mo3N stainless steel is in the welding steel structures industry as a low-cost alternative to DIN1.4410 steel, as it has superior strength and excellent corrosion resistance. Besides, since it provides better surface protection, one of the major advantages of using AISI S35550 1Cr18Mn10Ni5Mo3N stainless steel is the resistance to corrosion and erosion. It is also wildly applied in petrochemical industry and industrial parts because of its superior stress corrosion resistance, especially in mid-strength acids, like nitric acid. In addition, as it is low-cost and has high ductility, it can also be used in the manufacture of springs, parts used in medical appliances and equipment.