Kyaw Stainless, a reputable manufacturer and supplier located in Naypyidaw, Myanmar, specializes in high-quality Stainless Steel 309S Fasteners that are designed to perform exceptionally well in high-temperature and corrosive settings. These fasteners are crafted using cutting-edge technology and precise machining techniques, ensuring they boast remarkable strength, accurate dimensions, and long-lasting durability. Built to resist oxidation and scaling, Stainless Steel 309S Fasteners are perfect for critical industrial applications where reliability and longevity are a must. Kyaw Stainless guarantees that all products adhere to international quality standards, catering to industries like petrochemical, thermal power, cement, and chemical processing with trustworthy fastening solutions.
Stainless Steel 309S Fasteners are made up of chromium (22–24%), nickel (12–15%), and carbon (≤0.08%), along with trace amounts of manganese (≤2%), silicon (≤1%), phosphorus (≤0.045%), and sulfur (≤0.03%). The high levels of chromium and nickel in the alloy provide exceptional resistance to oxidation and corrosion, while the low carbon content improves weldability and minimizes carbide precipitation. In terms of mechanical properties, these fasteners deliver a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. They maintain impressive structural stability, toughness, and strength even under thermal cycling and significant mechanical stress.
Stainless Steel 309s Fasteners Specifications | |
| Grade | Stainless Steel 309S Fasteners. |
| Standard | ASTM A193 / A194, ASME SA193 / SA194, IS, BS, ANSI |
| Size | M02 to M33 |
| Length | UPTO 5 METERS |
| Surface Coating | Hot Dipped Galvanizing 309s Stainless Steel Fasteners, Phosphate 309s Stainless Steel Fasteners, Teflon 309 Stainless Steel Fasteners, Ptfe Coated 309s Stainless Steel Fasteners, Xylon 309 Stainless Steel Fasteners, Zinc 309s Stainless Steel Fasteners, Cadmium 309 Stainless Steel Fasteners |
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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Available in sizes ranging from M6 to M64 and lengths from 10mm to 200mm. They offer high corrosion resistance, making them suitable for high-temperature environments and demanding applications.
Excellent corrosion resistance and high strength. They are ideal for chemical processing and high-temperature applications, ensuring secure and reliable fastening.
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These screws are available in sizes from M1.6 to M12, with lengths up to 100mm. They provide excellent corrosion resistance and are suitable for various applications, including construction, automotive, and industrial machinery.
Come in sizes from M6 to M64 and lengths up to 3000mm. Known for their corrosion resistance and high strength, they are used in construction, marine, and high-temperature applications.
Available in sizes ranging from M6 to M64. They provide excellent corrosion resistance and are used to distribute the load of a fastener, ensuring secure and stable assemblies in various applications, including high-temperature environments.
Stainless Steel 309S Fasteners are ideal for use in high-temperature, corrosive environments due to their excellent resistance to oxidation and corrosion. They are commonly used in industries such as petrochemical, power generation, chemical processing, and aerospace, where they are employed in heat exchangers, boilers, exhaust systems, and gas turbines. These fasteners are also used in furnace components, industrial machinery, and food processing equipment. Their durability and ability to withstand extreme temperatures make them essential for critical applications requiring high-performance, reliable fastening solutions in harsh environments.
Stainless Steel 309S Fasteners are extensively utilized in environments that experience high temperatures and corrosive conditions. They are particularly well-suited for assembling furnaces, boilers, exhaust manifolds, and heat exchangers. Industries such as petrochemical, power generation, refineries, and cement manufacturing rely on these fasteners to secure components operating in oxidizing and carburizing atmospheres. Their excellent resistance to scaling and corrosion makes them ideal for both structural and mechanical assemblies exposed to elevated temperatures. Stainless Steel 309S Fasteners provide dependable performance in demanding applications.







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