Nestled in the industrial heart of Manama, Bahrain, Niazi Stainless has built a reputation as a reliable source for high-performance stainless steel components. Among their extensive inventory, their Stainless Steel 309 nuts stand out. Engineered for some of the most demanding environments, these nuts are the go-to choice for industries where failure is not an option. When your project demands exceptional strength and resilience, Niazi Stainless delivers more than just a product; they provide a trusted solution.
The exceptional durability of these nuts starts with their composition. They are crafted from a chromium-nickel stainless steel that’s further enriched with a significant amount of aluminum. This specific composition grants them an outstanding resistance to oxidation. Mechanically, they possess a high tensile strength and can withstand extreme temperatures. This robust combination allows them to handle intense pressure and thermal fluctuations that would compromise lesser fasteners, ensuring they stay securely in place over the long term.
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 commonly find these specialized nuts in critical high-temperature settings. They are extensively used in furnace and boiler systems, power generation equipment, and various high-temperature industrial machinery. Their ability to resist extreme heat makes them invaluable for applications like securing heating elements, refractory anchoring, and joining components within industrial ovens. Essentially, in any situation where thermal stability is non-negotiable, the Stainless Steel 309 nuts from Niazi Stainless provide the reliable, long-lasting hold that your operations depend on.
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