Harshita Stainless, a well-respected manufacturer and supplier located in Delhi, India, has built a solid reputation for producing top-notch stainless steel fasteners. They specialize in Stainless Steel 309S Nuts and have established a strong foothold in Dubai, UAE, to meet global demand. With a focus on quality, precision engineering, and customer satisfaction, Harshita Stainless offers corrosion-resistant, high-performance fasteners that are perfect for tough industrial applications. Their commitment to innovation and adherence to international standards ensures that they deliver on time, offer competitive pricing, and provide unmatched durability, making them a go-to choice for various industries across the Middle East.
Stainless Steel 309S Nuts are primarily made up of chromium (22-24%) and nickel (12-15%), with a low carbon content that boosts their resistance to high-temperature oxidation and corrosion. They boast impressive mechanical properties, featuring a tensile strength of around 550 MPa and a yield strength of about 205 MPa. These nuts maintain their stability and strength even at elevated temperatures, with a melting point ranging from approximately 1398 to 1454°C. Their low carbon content also helps prevent carbide precipitation during welding, making them perfect for high-temperature and corrosive 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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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.
Thanks to their exceptional heat resistance and mechanical stability, Stainless Steel 309S Nuts are widely used in various high-temperature and corrosive environments. You’ll find them in applications like heat exchangers, power generation units, chemical processing plants, and furnace components. They’re also essential in constructing kilns, boilers, and refinery equipment where thermal stability is key. In industries such as aerospace, petrochemical, and marine, these nuts provide reliable fastening solutions even under extreme conditions. Their durability, resistance to corrosion, and performance under stress make them ideal for critical and long-lasting industrial installations.
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