Rio Tinto 304.1 is a heat-treatable, aluminum-silicon casting alloy that also contains small amounts of iron, manganese, magnesium, copper, and titanium. This alloy is available in the form of ingots for remelting, for the manufacture of die castings. Alloy 304.0 was developed as K-Alloy by Delphi Technologies in order to protect critical components from harsh environments without the need for expensive coatings. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as machining and joining. Filing Code: Al-465. Producer or source: Rio Tinto Limited.