Allegheny Ludlum Type 430 (UNS S43000) stainless is a corrosion- and heat-resistant chromium steel. Its oxidation resistance is superior to Type 304 in intermittent service, but somewhat lower than Type 304 in continuous service. Type 430 is magnetic in all conditions. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-1001. Producer or source: Allegheny Ludlum.