Khaleed Stainless stands out as a top manufacturer and supplier in Riyadh, Saudi Arabia, known for its high-quality Stainless Steel 309S Nuts. These nuts are celebrated for their remarkable strength, impressive corrosion resistance, and durability, especially in high-temperature settings. Built to endure tough operating conditions, they find extensive use in industries like chemical processing, heat treatment, petrochemical, and power generation. When it comes to environments that demand resistance to oxidation, thermal stress, and scaling, Stainless Steel 309S Nuts are the go-to choice for reliable fastening solutions in critical industrial applications.
These nuts are primarily made up of iron, chromium (22–24%), and nickel (12–15%), featuring a low carbon content that boosts their resistance to sensitization during welding. They excel in resisting oxidation at temperatures up to 1000°C and perform admirably under cyclic thermal conditions. On the mechanical side, they boast a tensile strength of about 515 MPa, a yield strength of 205 MPa, and good elongation, ensuring they remain tough, reliable, and long-lasting even when faced with extreme thermal and mechanical stresses.
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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Corrosion-resistant product designed for high-temperature environments. Stainless Steel 309S Nuts are available in sizes from M6 to M36, ideal for furnace components and industrial applications requiring excellent heat and oxidation resistance.
Stainless Steel 309S Coupling Nuts are used to connect threaded rods in high-temperature settings. Sizes range from M6 to M36, suitable for furnace and kiln applications where durability and heat resistance are essential.
Stainless Steel 309S Nylon Insert Nuts feature a nylon insert to prevent loosening under high temperatures. Available in sizes from M6 to M24, they are ideal for securing components in industrial machinery and furnace applications.
Stainless Steel 309S Flange Hex Nuts offer enhanced load distribution with integrated flanges. Sizes range from M6 to M24, suitable for high-temperature environments such as kilns and industrial equipment, providing both strength and corrosion resistance.
Stainless Steel 309S Heavy Hex Nuts are designed for high-stress, high-temperature applications. Available in sizes from M6 to M36, they are ideal for use in industrial machinery and furnace components, ensuring exceptional strength and thermal stability.
Stainless Steel 309S Square Nuts provide a large surface area for effective torque application. Sizes range from M6 to M24, suitable for high-temperature and industrial applications, ensuring durability and stability in demanding environments.
We are providing a wide variety of certifications with our Stainless Steel 309S Nuts in order to satisfy a high quality standard. In our package, commercial invoices, packing lists, fumigation certificates, heat treatment charts, quality assurance plans, and approved laboratory test reports are provided. Besides, test certificate varying specifically for our Stainless Steel 309S Nuts. The set of certificates used by us consists of MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. It will ensure full satisfaction and satisfaction for our customers and clients that these products carry complete certifications.
Stainless Steel 309S nuts are used widely for high-temperature applications. This is because the nuts offer high heat resistance as well as resistance to corrosion. Some of the common industries using these nuts are chemical, petrochemical, and power generation industries, in which the equipment includes boilers, furnaces, and heat exchangers. The nuts are also excellent for use in industries requiring fasteners with high strength, such as aerospace, marine, and automotive. These nuts give excellent performance under elevated temperatures, in corrosive environments, hence being an absolute selection for critical applications requiring lasting durability and protection against oxidation as well as scaling.
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