In the heart of Kinshasa, Mbemba Stainless stands as a trusted partner for industry, dedicated to providing robust and reliable materials. We take pride in our role as a premier manufacturer and supplier, with a special focus on the exceptional quality of our Stainless Steel 309S Bars. Our commitment is to deliver materials that not only meet but exceed the demanding expectations of the Congolese market, ensuring your projects are built on a foundation of strength and durability.
The strength of 309S lies in its sophisticated composition, which is rich in chromium and nickel, giving it a natural resistance to oxidation and corrosion. This alloy is further stabilized to perform reliably under intense heat, maintaining its structural integrity where other steels might fail. It possesses excellent mechanical properties, including high tensile strength and good creep resistance, allowing it to withstand sustained stress at elevated temperatures without significant deformation.
| 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 |
Contact us to get a quick quote for your requirement.
We ensures the highest quality of stainless steel 309S tiles through rigorous testing and certification. Each product undergoes extensive testing, including chemical composition, mechanical properties and durability testing. Certified to accepted industry standards, our breweries deliver efficiency, reliability and compliance, making them ideal for complex applications.
Stainless Steel 309S Round Bars are 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.
Stainless Steel 309S Flat Bars provide outstanding heat resistance and strength, suitable for applications such as heat shields, furnace parts, and structural components exposed to high temperatures and corrosive environments.
Stainless Steel 309S Square Bars are used in 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.
Stainless Steel 309S Rectangular Bars are ideal for 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.
Stainless Steel 309S Hexagonal Bars are perfect for applications needing high-temperature performance and corrosion resistance. They are utilized in industrial processes, furnace parts, and equipment subjected to severe thermal conditions.
Stainless Steel 309S T-Bars offer 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.
Because of its ability to handle high temperatures so effectively, Stainless Steel 309S Bars are indispensable in demanding environments. You will often find them forming the core structure of industrial furnaces, heat treatment equipment, and critical components within power generation plants. They are also the material of choice for welding fittings and fixtures that are exposed to extreme heat, ensuring long-lasting performance and safety in the most challenging applications.
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