409 stainless steel is a ferritic stainless steel commonly used in machinery, construction and other engineering. Due to the existence of austenite grains, its mechanical properties are greatly improved. And due to the addition of a lot of alloying elements, the strength and hardness are also greatly improved. It has good mechanical properties and high temperature corrosion resistance. It contains 11% chromium, the minimum required to form a passive surface film that makes stainless steel corrosion resistant. It combines good high temperature corrosion resistance with moderate strength, good formability and overall cost. 409 stainless steel is a ferritic stainless steel that contains about 11% chromium. It is commonly used in applications where high-temperature corrosion resistance is required, such as automotive exhaust systems and heat exchangers. Some of the key properties of 409 stainless steel include: Corrosion resistance: 409 stainless steel has excellent corrosion resistance to exhaust gas and atmospheric corrosion. Heat resistance: 409 stainless steel exhibits good resistance to high-temperature oxidation and scaling. Weldability: It is easily weldable and can be welded using common welding techniques. Formability: 409 stainless steel can be easily formed into complex shapes using various forming techniques. Cost-effective: It is a low-cost stainless steel and provides excellent value for money in various applications. Overall, 409 stainless steel is a highly versatile and reliable material that provides excellent corrosion and heat resistance properties at a low cost, making it a popular choice in various industrial applications. Here are some of the most common international standards for 409L stainless steel: ASTM A240/A240M: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications ASTM A268/A268M: Standard Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service ASTM A554: Standard Specification for Welded Stainless Steel Mechanical Tubing EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes JIS G4305: Cold-rolled stainless steel plate, sheet and strip GB/T 3280: Cold rolled stainless steel plate, sheet and strip We can provide the following form:409 stainless steel coil; 409 stainless stee strip;409 stainless stee plate; 409 stainless steel sheets; 409 stainless steel tubes; 409 stainless steel pipe; 409 stainless steel flat; 409 stainless steel bar 409 is most commonly used in truck exhaust systems, agricultural equipment, and heat and gas turbine exhaust silencers.