Akor Stainless is a well-respected manufacturer and supplier of Stainless Steel 309 Nuts based in Abuja, Nigeria. We provide top-notch fastening solutions tailored for a variety of industrial sectors. Our Stainless Steel 309 Nuts are celebrated for their remarkable heat resistance, durability, and ability to fend off corrosion, making them perfect for tough environments. At Akor Stainless, we blend cutting-edge manufacturing techniques with rigorous quality control to guarantee that every product performs reliably and consistently. Our dedication to customer satisfaction, prompt delivery, and competitive pricing has helped us earn the trust of industries like petrochemical, power generation, construction, and mechanical engineering, establishing us as a go-to partner for high-quality fastening products.
These Stainless Steel 309 Nuts are primarily made up of chromium (22–24%) and nickel (12–15%), which gives them impressive resistance to oxidation and high-temperature scaling. They boast good mechanical strength, with a tensile strength of around 515 MPa, and maintain excellent toughness across a wide temperature range. This material ensures stability even during thermal cycling and in harsh operating conditions. With a moderate carbon content that enhances hardness and rigidity, our Stainless Steel 309 Nuts provide dependable fastening performance in both corrosive and heat-intensive settings, making them ideal for high-temperature industrial applications.
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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An ideal corrosion resistant material for high humidity environments. Stainless steel 309 nuts are available in sizes from M6 to M36, perfect for furnace parts, heat exchangers and industrial applications requiring high thermal resistance.
Stainless steel 309 coupling nuts are used to connect threaded cables under high temperature conditions. Sizes range from M6 to M36, making them suitable for use in furnace parts and heat exchangers, providing durability and heat resistance.
Stainless steel 309 nylon insert nuts make nylon inserts flexible for secure fastening in high temperature environments. Available in sizes from M6 to M24, they are ideal for applications in heat exchangers and industrial furnaces where stability is required.
Stainless steel 309 flange hex nuts for enhanced weight distribution with integrated flanges. Sizes range from M6 to M24, suitable for high temperature applications such as furnace components and heat exchangers, providing both strength and thermal resistance
Heavy duty stainless steel 309 hex nuts are designed for high pressure, high temperature applications. Available in sizes from M6 to M36, they are used in industrial machinery and furnace components, and offer exceptional strength and heat resistance.
Stainless steel 309 square nuts provide large surface area for efficient torque application. Sizes range from M6 to M24, making them suitable for hot environments such as heat exchangers and furnace parts, making them strong and durable.
We ensure complete documentation for our Stainless Steel 309 Nuts to make them transparent and reliable. Documents include a commercial invoice, a packaging list, a fumigation certificate, a heat treatment chart, and a quality assurance plan. It is accompanied by an NABL-approved lab test report, which satisfies stringent standards. Our commitment to quality is supported by various test certificates, like MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and a Third-Party Inspection Certificate. These measures will collectively guarantee 100% client satisfaction and confidence in the integrity of our products.
You’ll find Stainless Steel 309 Nuts widely used in industries that demand secure fastening in high heat and corrosive environments. They’re commonly found in furnace assemblies, heat treatment plants, boilers, exhaust systems, and high-temperature processing equipment. These nuts are also essential in petrochemical refineries, power plants, marine settings, and manufacturing machinery where long-lasting durability and oxidation resistance are crucial. In construction and structural applications, they ensure strong, stable connections, even when faced with fluctuating temperatures. Their outstanding mechanical reliability makes Stainless Steel 309 Nuts a top choice for demanding applications.
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