Kyaw Stainless is a prominent manufacturer and supplier located in Naypyidaw, Myanmar, focusing on top-notch Stainless Steel 309 Bars. These bars are designed to perform exceptionally well in high-temperature and corrosive settings, making them perfect for tough industrial tasks. At Kyaw Stainless, they prioritize precision in manufacturing, superior finishing, and rigorous quality control to ensure that their products deliver outstanding durability and reliability. Renowned for their remarkable heat and oxidation resistance, the Stainless Steel 309 Bars from Kyaw Stainless find extensive use in sectors like petrochemical, furnace manufacturing, and power generation, where strength and thermal stability are crucial.
These Stainless Steel 309 Bars consist of about 22–24% chromium, 12–15% nickel, along with trace amounts of carbon, manganese, and silicon, with iron making up the rest. This unique blend grants them excellent 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 impressive elongation and toughness. Their mechanical properties make them a great fit for applications that demand strength, ductility, and corrosion resistance in extreme heat conditions.
| Specifications | ASTM A276, ASTM A479 |
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| SS 309 Round Bars | Outside Diameter in the range of 4mm to 500mm |
| SS 309 Bright Bars | Outside Diameter in the range of 4mm to 100mm |
| SS 309 Hex Bars | 18mm – 57mm (11/16″ to 2-3/4″) |
| SS 309 Square Bars | 18mm – 47mm (11/16″ to 1-3/4″) |
| SS 309 Flat Bars | 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available |
| Finish | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc. |
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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Stainless Steel 309 Bars are widely used in industries that require high resistance to heat and corrosion. They are commonly used in the petrochemical, chemical processing, power generation, and aerospace industries for applications such as heat exchangers, boilers, gas turbines, furnace components, and exhaust systems. These bars are also used in industrial machinery, food processing equipment, and welding applications. Their exceptional high-temperature strength, oxidation resistance, and durability make them ideal for critical applications in extreme environments, ensuring reliable performance in demanding industrial settings.
Excellent corrosion resistance and are available in diameters ranging from 6 mm to 200 mm. Ideal for high-temperature applications and structural uses, they ensure durability and strength.
Featuring good corrosion resistance, Stainless Steel 309 Flat Bars come in widths from 20 mm to 150 mm and thicknesses from 5 mm to 50 mm. These bars are used in construction, manufacturing, and industrial applications for their thermal stability.
Known for their corrosion resistance, Stainless Steel 309 Square Bars are available in sizes from 10 mm to 100 mm. They are utilized in various structural and industrial applications where strength and heat resistance are required.
Provide corrosion resistance and are offered in dimensions like 20 mm x 10 mm to 150 mm x 50 mm. These bars are suitable for use in high-temperature environments and structural applications.
Offering corrosion resistance, Stainless Steel 309 Hexagonal Bars are available in sizes ranging from 6 mm to 50 mm across flats. They are often used in machining, fabrication, and for applications requiring heat resistance.
High-temperature resistance and oxidation resistance. Available in sizes ranging from 15 mm x 15 mm x 6 mm to 100 mm x 100 mm x 12 mm, they are used in industrial applications such as heat exchangers and furnace components, providing durability and strength in extreme conditions.
You’ll find Stainless Steel 309 Bars commonly used in heat exchangers, furnaces, boilers, kilns, and various high-temperature processing equipment. They’re also utilized in chemical plants, refineries, and power generation facilities because of their ability to endure oxidation and carburization. These bars are ideal for crafting shafts, fasteners, and structural components that are exposed to intense heat and corrosive environments. With excellent machinability, weldability, and long-lasting performance, Stainless Steel 309 Bars provide stability, reliability, and strength in even the most challenging industrial settings.
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