309 Stainless Steel Bars - UNS S30900

309 Stainless Steel (UNS S30900) is an austenitic stainless steel developed for use in high temperature corrosion resistance applications. The alloy resists oxidation up to 1900°F (1038°C) under non-cyclic conditions. Frequent thermal cycling reduces oxidation resistance to approximately 1850°F (1010°C).

 

Because of its high chromium and low nickel content, Alloy 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The alloy is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. Alloy 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.

 

Stainless Steel 309 Bars are solid metal bars made from an alloy primarily composed of iron, chromium, and nickel, with additional elements such as manganese and silicon. Known for their high resistance to heat and corrosion, these bars are commonly used in environments with elevated temperatures, such as furnaces and industrial equipment. They offer excellent strength and durability, making them suitable for various applications in manufacturing and construction industries.

In addition to their mechanical properties, Stainless Steel 309 Bars also boast exceptional corrosion resistance in a wide range of environments, including acidic and alkaline conditions. This corrosion resistance makes them suitable for use in chemical processing plants, pharmaceutical industries, and marine applications where exposure to corrosive substances or saltwater is inevitable. Their durability and longevity in such harsh environments contribute to cost-effectiveness and reduced maintenance requirements over time.

Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.

Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.

Heat treatment strengthens rolled stainless steel by recrystallizing the deformed microstructure. Most stainless steel is heat treated by annealing.

A rolled piece of stainless steel acquires a layer of oxidized “mill scale,” which needs to be washed away to restore a shiny surface finish.

Stainless steel is cut to a specified shape and size. The stainless steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.

 

Furthermore, Stainless Steel 309 Bars exhibit outstanding weldability and formability, allowing for ease of fabrication into various shapes and sizes to meet specific project requirements. This characteristic makes them favored materials in construction, automotive, and manufacturing industries where customization and precision are paramount. Whether it's machining, bending, or welding, these bars offer versatility in processing, enabling seamless integration into diverse applications.

 

Lork Group is a reputable manufacturer and supplier of high-quality Stainless Steel 309 Bars in China. Renowned for our dedication to excellence, we specialize in producing durable stainless steel products to meet diverse industrial needs. With a commitment to superior quality, we ensure our bars meet strict standards, making us a trusted choice in the industry.