Reputable stainless steel 309 bar manufacturer and supplier Vinit Stainless, with headquarters in Chennai, India, is renowned for producing high-performance goods for applications requiring a lot of heat and corrosion. SS 309 bars are perfect for furnace parts, heat exchangers and power plant equipment because of their exceptional performance in high-temperature settings. Vinit Stainless is a reliable partner for industries in India and around the world because it guarantees accurate manufacturing, adherence to international quality standards, and prompt delivery. Vinit Stainless offers customised solutions for crucial industrial applications needing long-lasting stainless steel bars, with a strong emphasis on product dependability and customer satisfaction.
With a maximum carbon content of 0.20%, stainless steel 309 bars are made up of roughly 22–24% chromium and 12–15% nickel. At elevated temperatures, this austenitic stainless steel provides exceptional resistance to oxidation and corrosion. SS 309 has good elongation and creep resistance, with a typical tensile strength of 550 MPa and a yield strength of about 205 MPa. These bars are perfect for thermal processing settings because they retain their strength and structural integrity at temperatures as high as 1000°C. Additionally, the alloy has good formability and weldability for a range of fabrication applications.
| Specifications | ASTM A276, ASTM A479 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| SS 309 Round Bars | Outside Diameter in the range of 4mm to 500mm |
| SS 309 Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| SS 309 Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| SS 309 Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| SS 309 Flat Bars | 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
Element | Content (%) |
Iron, Fe | 60 |
Chromium, Cr | 23 |
Nickel, Ni | 14 |
Manganese, Mn | 2 |
Silicon, Si | 1 |
Carbon, C | 0.20 |
Phosphorous, P | 0.045 |
Sulfur, S | 0.030 |
Properties | Metric | Imperial |
Tensile strength | 620 MPa | 89900 psi |
Yield strength (@ strain 0.200%) | 310 MPa | 45000 psi |
Izod impact | 120 – 165 J | 88.5 – 122 ft-lb |
Shear modulus (typical for steel) | 77 GPa | 11200 ksi |
Elastic modulus | 200 GPa | 29008 ksi |
Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break (in 50 mm) | 45% | 45% |
Hardness, Brinell | 147 | 147 |
Hardness, Rockwell B | 85 | 85 |
Hardness, Vickers (converted from Rockwell B hardness) | 169 | 169 |
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Stainless Steel 309 Round Bars offer excellent corrosion resistance and are available in diameters ranging from 6 mm to 200 mm. Ideal for high-temperature applications and structural uses, they ensure durability and strength.
Featuring good corrosion resistance, Stainless Steel 309 Flat Bars come in widths from 20 mm to 150 mm and thicknesses from 5 mm to 50 mm. These bars are used in construction, manufacturing, and industrial applications for their thermal stability.
Known for their corrosion resistance, Stainless Steel 309 Square Bars are available in sizes from 10 mm to 100 mm. They are utilized in various structural and industrial applications where strength and heat resistance are required.
Stainless Steel 309 Rectangular Bars provide corrosion resistance and are offered in dimensions like 20 mm x 10 mm to 150 mm x 50 mm. These bars are suitable for use in high-temperature environments and structural applications.
Offering corrosion resistance, Stainless Steel 309 Hexagonal Bars are available in sizes ranging from 6 mm to 50 mm across flats. They are often used in machining, fabrication, and for applications requiring heat resistance.
Stainless Steel 309 T-Bars are known for their high-temperature resistance and oxidation resistance. Available in sizes ranging from 15 mm x 15 mm x 6 mm to 100 mm x 100 mm x 12 mm, they are used in industrial applications such as heat exchangers and furnace components, providing durability and strength in extreme conditions.
Industries that require resistance to oxidation and high temperatures frequently use stainless steel 309 bars. Applications include kiln linings in thermal processing equipment, boiler baffles, fire box sheets, heat exchangers and furnace parts. They are also employed in the metallurgy, petrochemical, and power generation sectors. Components subjected to frequent heating and cooling cycles benefit greatly from the long service life and low maintenance requirements of SS 309 bars. They are also appropriate for applications involving mild chemical exposure due to their resistance to corrosion. These bars are frequently utilised in structural and industrial settings where dependable high-temperature performance is required.
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