Weston Stainless, based in Midland, UK, is a leading supplier of high-quality stainless steel products, known for providing durable and reliable solutions to industries worldwide. With a commitment to excellence, they deliver products that meet international standards. Stainless Steel 309 Bars are made from an alloy containing 22-24% chromium and 12-15% nickel, providing exceptional resistance to high temperatures and oxidation. These bars are available in various shapes such as round, square, and hexagonal, and are widely used in industries like petrochemical, chemical processing, and power generation, where superior performance is essential.
Stainless Steel 309 Bars are composed of 22-24% chromium, 12-15% nickel, with small amounts of manganese, silicon, and carbon. The mechanical properties include a tensile strength of around 515 MPa, yield strength of 205 MPa, and an elongation of 40%. The Brinell hardness is approximately 201 HB. Physically, these bars have a density of 7.9 g/cm³, a melting point ranging from 1400-1450°C, and thermal conductivity of 15.1 W/m·K. They offer excellent resistance to oxidation, high-temperature strength, and corrosion, making them ideal for demanding industrial 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 Bars are widely used in industries that require high resistance to heat and corrosion. They are commonly used in the petrochemical, chemical processing, power generation, and aerospace industries for applications such as heat exchangers, boilers, gas turbines, furnace components, and exhaust systems. These bars are also used in industrial machinery, food processing equipment, and welding applications. Their exceptional high-temperature strength, oxidation resistance, and durability make them ideal for critical applications in extreme environments, ensuring reliable performance in demanding industrial settings.
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.
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.
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.
Stainless Steel 309 Bars are provided with comprehensive test certificates, including Mill Test Certificates (MTC), material certificates, and third-party inspection reports to ensure compliance with industry standards. These bars are securely packaged using protective materials such as wooden crates, cartons, or plastic wraps to prevent damage during transit. Delivery is efficient, with shipping options available via air, sea, or road, ensuring safe and timely delivery to global destinations while maintaining product integrity throughout the process.
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