Kyaw Stainless is a well-respected manufacturer and supplier located in Naypyidaw, Myanmar, specializing in top-notch Stainless Steel 309 Bolts that are crafted for outstanding performance in high-temperature and corrosive settings. These bolts are meticulously engineered and produced under rigorous quality standards to guarantee durability, strength, and resistance to oxidation. Kyaw Stainless is dedicated to providing reliable fastening solutions that hold up under extreme thermal and mechanical stress. Industries such as petrochemical, furnace construction, and power generation trust Stainless Steel 309 Bolts, where high heat and corrosion resistance are essential for long-lasting operation.
These bolts are made up of about 22–24% chromium, 12–15% nickel, and small amounts of carbon, manganese, and silicon, with the rest being iron. This specific chemical makeup gives them remarkable resistance to oxidation and scaling 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 ductility and toughness. These mechanical characteristics make Stainless Steel 309 Bolts perfect for high-temperature environments that demand both mechanical strength and corrosion protection.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 309 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 309 |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 309 |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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High heat resistance that have good resistance to oxidation. They are perfect for severe environments and provide strength and reliability in mechanical and thermal conditions.
High heat resistance that have good resistance to oxidation. They are perfect for severe environments and provide strength and reliability in mechanical and thermal conditions.
High heat resistant fastener in the shape of a square head with a specific shape, making it strong and reliable for severe heat and difficult areas.
High temperature fastening and is made use of when fixing concrete or masonry construction. When tight clamped the same expands on the hole. Ensures perfect gripping.
Hex-head feature with built-in flanges. It thus spreads the load with more weights, providing increased weight distribution and good heat resistance for overheating applications.
Full threads along their length, providing consistent clamping force and resistance to heat. They are perfect for high-temperature applications where durability and reliable performance are expected.
Stainless Steel 309 Bolts are widely used in high-temperature and corrosive environments due to their excellent oxidation resistance. 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 bolts are also ideal for applications in gas turbines, industrial machinery, and furnace components. Their ability to withstand extreme temperatures and harsh environments makes them essential in applications requiring durable, reliable, and high-performance fasteners for critical industrial systems.
You’ll find Stainless Steel 309 Bolts widely used in furnaces, boilers, heat exchangers, and chemical processing plants. They’re particularly suited for securing components that face high heat, pressure, and corrosive gases. Thanks to their high chromium and nickel content, these bolts offer excellent resistance to oxidation and carburization, even in harsh conditions. They’re also employed in marine and power generation applications due to their stability and reliability. With great weldability, formability, and a long service life, Stainless Steel 309 Bolts deliver dependable fastening performance in the toughest industrial environments.
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