Kyaw Stainless is a reputable manufacturer and supplier located in Naypyidaw, Myanmar, specializing in high-quality Stainless Steel 309 Nuts that are perfect for high-temperature and corrosive environments. These nuts are meticulously crafted to ensure outstanding performance, strength, and durability, even in the toughest conditions. At Kyaw Stainless, every product goes through rigorous quality control to meet international standards, making their Stainless Steel 309 Nuts a dependable choice for industrial applications. Renowned for their remarkable resistance to oxidation and heat, these nuts find their place in industries like petrochemical, furnace manufacturing, and power generation, where both strength and protection against corrosion are crucial.
Stainless Steel 309 Nuts are made up of about 22–24% chromium, 12–15% nickel, along with trace amounts of carbon, manganese, and silicon, with iron making up the rest. This specific chemical composition grants them excellent resistance to oxidation, scaling, and carburization at temperatures reaching up to 1000°C. They boast a tensile strength of around 515 MPa and a yield strength of about 205 MPa, along with good elongation and toughness. These mechanical characteristics make Stainless Steel 309 Nuts perfect for harsh environments that demand both high-temperature strength and corrosion resistance.
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.
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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
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.
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.
Stainless Steel 309 Nuts are widely used in high-temperature and corrosive environments due to their excellent resistance to oxidation and corrosion. They are commonly applied in industries such as petrochemical, power generation, and chemical processing, where they are used in heat exchangers, boilers, and exhaust systems. These nuts are also ideal for applications in gas turbines, industrial machinery, and furnace components. Their ability to withstand extreme temperatures and aggressive environments makes them essential for critical applications requiring durable, reliable fastening solutions in demanding industrial settings.
You’ll find Stainless Steel 309 Nuts commonly used in furnaces, boilers, heat exchangers, and chemical processing facilities. Their exceptional resistance to oxidation and high heat makes them ideal for securing components that are subjected to thermal cycling and corrosive gases. Additionally, these nuts are utilized in marine, refinery, and power generation settings where long-lasting reliability and structural integrity are vital. With their excellent weldability, machinability, and durability, Stainless Steel 309 Nuts offer secure fastening solutions that guarantee reliable performance and an extended service life, even in challenging industrial conditions.
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