304 #4 stainless steel sheet is an excellent candidate for most processing techniques as well as both indoor and outdoor applications. This non-magnetic product features a #4 brushed finish with directional grain and comes with a removable PVC protective film on one side making it ideal for cosmetic applications such as backsplashes. 304 #4 stainless steel is a high strength material with excellent corrosion resistance, so it is also commonly used in aerospace structures, pressure vessels, architectural designs, and food and beverage industrial equipment. ASTM A240 is the standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications.