สรุป: Discover the AISI 445 Ferritic Stainless Steel Sheet Plate, also known as EN 1.4621 or DIN X2CrNbCu21. This low-carbon ferritic stainless steel offers exceptional corrosion resistance, making it ideal for hot water tanks, heat exchangers, food processing equipment, and more. Stabilized with niobium, it resists sensitization and intergranular corrosion when welded. Perfect for white goods, automotive exhaust systems, and kitchenware.