Weston Stainless, located in Midland, UK, is a prominent supplier of high-quality stainless steel products, offering reliable solutions to industries across the globe. They are dedicated to providing durable and cost-effective products that meet international standards. Stainless Steel 309S Bars are composed of 22-24% chromium and 12-15% nickel, offering superior resistance to oxidation and high temperatures. These bars are available in various shapes, including round, square, and hexagonal, and are ideal for applications in industries such as petrochemical, chemical processing, and power generation, where high-performance materials are required.
Stainless Steel 309S 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 between 1400-1450°C, and thermal conductivity of 15.1 W/m·K. Their excellent resistance to high temperatures, oxidation, and corrosion makes them ideal for demanding industrial applications.
| Grade | Stainless Steel 309S (UNS 30908) |
| Standard | ASTM A276 / ASME SA276 |
| Diameter | 25mm to 152mm dia |
| Condition | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
| Finish | Bright, Polish & Black |
| Type | Round/Square/ Hexagonal/ Rectangular |
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 309S Bars are widely used in applications requiring high-temperature strength and excellent resistance to oxidation and corrosion. They are commonly used in industries such as petrochemical, chemical processing, and power generation for heat exchangers, gas turbines, boiler components, and furnace parts. These bars are also utilized in the manufacturing of industrial machinery, food processing equipment, and welding applications. Their durability and ability to withstand extreme temperatures make them ideal for use in critical environments, ensuring reliable performance and longevity in demanding industrial system
Designed for high-temperature applications, offering exceptional oxidation resistance and durability. They are ideal for components in furnaces, heat exchangers, and other high-heat environments.
Outstanding heat resistance and strength, suitable for applications such as heat shields, furnace parts, and structural components exposed to high temperatures and corrosive environments.
High-temperature settings where heat resistance and durability are critical. They are commonly employed in manufacturing parts for the aerospace industry, industrial equipment, and heat exchangers.
High-temperature applications requiring superior oxidation resistance. They are often used in furnace components, structural supports, and industrial parts that endure extreme heat and corrosive conditions.
High-temperature performance and corrosion resistance. They are utilized in industrial processes, furnace parts, and equipment subjected to severe thermal conditions.
Excellent heat resistance and strength, making them suitable for high-temperature structural applications. They are commonly used in heat exchangers, support structures, and furnace components.
Stainless Steel 309S Bars are supplied with detailed test certificates, including Mill Test Certificates (MTC), material certificates, and third-party inspection reports to ensure compliance with industry standards. The bars are securely packaged using protective materials such as wooden crates, cartons, or plastic wraps to prevent damage during transit. Delivery is carried out efficiently through various shipping methods, including air, sea, or road, ensuring safe and timely delivery to global destinations while maintaining product integrity throughout the process.







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