Ferritic stainless steel is a type of stainless steel with chromium as the primary alloying element (chromium content typically ranging from 10.5% to 30%), featuring a ferritic matrix structure at room temperature. It contains no nickel or low nickel content, offering both cost-effectiveness and functional performance based on its unique composition, making it one of the important series in the stainless steel family.
Its core advantages are significant: excellent corrosion resistance, with particularly outstanding resistance to stress corrosion cracking; superior oxidation and heat resistance compared to conventional carbon steel; high thermal conductivity, low coefficient of thermal expansion, and good formability. With nickel-free or low-nickel composition, costs are significantly lower than those of austenitic stainless steel, offering a clear cost-performance advantage. At the same time, there are certain limitations, including poor low-temperature toughness and welding performance at high temperatures that requires targeted optimization.
Widely suitable for various fields: Home appliance industry for refrigerator liners, washing machine drums, water heater tanks, etc.; Building and decoration sector for doors, windows, railings, curtain walls, etc.; Automotive industry primarily for exhaust system components and body trim parts; Chemical and water treatment sectors for corrosion-resistant pipes, valves, storage tanks; additionally, it is used in kitchenware, ventilation equipment, heat-resistant appliances, and other scenarios requiring a balance between cost and corrosion resistance.