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.
Stainless Steel 309 Bars possess a range of features that make them highly versatile and applicable across various industries. Known for their exceptional corrosion resistance, these bars are composed primarily of iron, chromium, and nickel, with additions of manganese and silicon for enhanced properties. Their high chromium and nickel content renders them resistant to oxidation, even in high-temperature environments, making them suitable for applications where exposure to heat and corrosive elements is common.
One prominent feature of Stainless Steel 309 Bars is their excellent high-temperature strength. They maintain their mechanical properties at elevated temperatures, making them ideal for use in furnace components, heat exchangers, and other equipment subjected to extreme heat conditions. Additionally, their superior creep resistance ensures reliability and longevity in applications where prolonged exposure to high temperatures is prevalent.
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.
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.
Moreover, Stainless Steel 309 Bars are highly resistant to sulfidation, a process commonly encountered in petrochemical and refining industries where sulfur-containing gases are present at high temperatures. This resistance ensures the bars' reliability and performance in demanding applications where exposure to sulfur compounds could compromise the integrity of conventional materials.
Apple Steels is a reputable manufacturer and supplier of high-quality Stainless Steel 309 Bars in Mumbai, India. 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.
Melting and Casting
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.
Forming
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
Heat treatment strengthens rolled stainless steel by recrystallizing the deformed microstructure. Most stainless steel is heat treated by annealing.
Descaling
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.
Cutting or Machining
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.
| SS Bar Wire Standard | ASTM A276 / A479, ASME SA276 / SA479 |
| Stainless Steel Bar Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Stainless Steel Round bar size | Diameter: 3-~800mm |
| Stainless Steel Hex Bar size | 2-100mm A/F |
| SS Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Stainless Steel Square bar size | 4 to 100mm |
| SS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Stainless Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
| SS Bars Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| SS Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Tempers | Tempers range from dead soft annealed to ultra spring temper |
| Rolled Stainless Steel Flat Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Stainless Steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Stainless Steel Rounds Bar Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 309 | S30900 | – | – | 1.4828 | – | – | SUS 309 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 309 | 0.10 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | - | 8 – 10.5 | - |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 309/309L | 515 | 205 | 40% | 85 | 147 |
Electrical Industry
Automotive Industry
Construction Industry
Defence Industry
Pharmaceutical Industry
Petroleum Industry
Petrochemical Industry
Milk & Dairy Industry
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