321 Round Bar

321 round bars, a titanium-stabilized austenitic stainless steel (UNS S32100), excel in high-temperature and corrosive environments where intergranular corrosion resistance is paramount. The addition of titanium prevents carbide precipitation during welding, making it a go-to choice for welded components in chemical processing, aerospace, and automotive sectors. This alloy maintains mechanical properties up to 870°C, with a minimum tensile strength of 515MPa and yield strength of 205MPa, ensuring stability in exhaust systems, heat exchangers, and furnace parts. Newstar Hardware’s 321 round bars are manufactured to ASTM A276 and A479 standards, offering diameters from 10mm to 200mm in both hot-rolled and cold-finished conditions. The material’s excellent oxidation resistance—forming a protective chromium oxide layer—extends service life in applications like industrial furnaces and boiler components. Its ductility (minimum 30% elongation) allows for complex machining and forming, while magnetic permeability close to zero suits it for non-magnetic applications. Whether used in food-grade equipment or high-temperature structural parts, 321 round bars deliver consistent performance and compliance with international quality benchmarks.