Emilio Stainless is a reputable manufacturer and supplier located in Manila, Philippines, specializing in top-notch stainless steel products like Stainless Steel 309 Bars. The company has built a solid reputation for its commitment to precision, quality, and customer satisfaction, ensuring that their materials meet international standards for strength, corrosion resistance, and heat performance. Emilio Stainless takes pride in delivering Stainless Steel 309 Bars that offer remarkable reliability and durability, making them perfect for high-temperature and corrosive industrial settings. With cutting-edge production methods and rigorous quality control, Emilio Stainless promises consistent performance and a long lifespan for all its stainless steel offerings.
Stainless Steel 309 Bars are crafted from an austenitic chromium-nickel stainless steel alloy, which contains about 22–24% chromium and 12–15% nickel. This unique chemical makeup gives the bars exceptional oxidation and corrosion resistance, especially at elevated temperatures reaching up to around 1000°C. The material boasts a tensile strength of approximately 620 MPa while maintaining impressive toughness and ductility under thermal stress. Additionally, Stainless Steel 309 shows outstanding resistance to sulfuric, nitric, and chloride-rich environments, making it an excellent choice for applications where heat and corrosion are critical.
| 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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We carries out rigorous performance tests on complete batches of Stainless Steel 309 Bars with regards to chemical composition, mechanical properties, and the degree of corrosion resistance. Our products are certified by recognized authorities regarding conformity to international standards for ensuring reliability and consistency with every delivery.
Stainless Steel 309 Round Bars offer 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.
Stainless Steel 309 Rectangular Bars 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.
Stainless Steel 309 T-Bars are known for their 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.
These Stainless Steel 309 Bars find extensive use across various industries, including petrochemical, power generation, furnace engineering, chemical processing, and aerospace. They are particularly well-suited for crafting heat exchangers, furnace components, boiler baffles, oven linings, and high-temperature structural parts. Thanks to their exceptional resistance to oxidation and scaling, they thrive in environments with continuous heat and corrosive conditions. With excellent mechanical stability, wear resistance, and longevity, Stainless Steel 309 Bars are the go-to choice for demanding industrial and thermal processing applications.















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