Khaleed Stainless stands out as a top manufacturer and supplier in Riyadh, Saudi Arabia, focusing on high-quality stainless steel products tailored for demanding industrial needs. One of their standout products, Stainless Steel 309 Nuts, is celebrated for its remarkable resistance to both high temperatures and corrosion. Crafted with precision and in line with strict international standards, these nuts offer dependable, durable, and secure fastening solutions. Khaleed Stainless guarantees that every nut meets essential industrial specifications, making them a go-to choice for sectors like petrochemical, power generation, chemical processing, and heavy machinery throughout Saudi Arabia.
These Stainless Steel 309 Nuts are made up of 23–25% chromium and 12–15% nickel, along with trace amounts of carbon, manganese, and silicon. This unique blend gives them exceptional oxidation and heat resistance, making them perfect for high-temperature settings. On the mechanical side, these nuts boast impressive tensile and yield strength, outstanding creep resistance, and stability during thermal cycling. Their toughness and ductility enable them to handle mechanical stress, while their corrosion resistance guarantees long-lasting performance in chemical, marine, and industrial settings.
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 commonly used in high-temperature and corrosive environments. They’re perfect for securing components in boilers, furnaces, heat exchangers, and industrial piping systems where strength and durability are paramount. Industries such as petrochemical, power generation, aerospace, and chemical processing depend on these nuts for safe, reliable, and enduring assemblies. Their resistance to corrosion and heat also makes them ideal for marine and harsh chemical environments, minimizing maintenance needs and ensuring long-term performance in critical industrial applications.
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