Isis Metals stands out as a reliable manufacturer and supplier of Stainless Steel 347 Flat Bars right here in Manila, Philippines. We take pride in offering top-notch stainless steel products that are celebrated for their remarkable strength and resistance to corrosion. Our Stainless Steel 347 Flat Bars are niobium-stabilized, which means they have enhanced protection against intergranular corrosion and oxidation, especially when the heat is on. With excellent mechanical stability, durability, and weldability, these bars are perfect for tough industrial settings. Crafted to meet international standards, our Stainless Steel 347 Flat Bars find their place in various sectors, including chemical processing, aerospace, power generation, and heat treatment, where long-lasting performance is a must.
Stainless Steel 347 Flat Bars are made up of a blend of chromium (17–19%), nickel (9–13%), carbon (≤0.08%), and niobium (10×C min), along with trace amounts of manganese, silicon, and phosphorus. The addition of niobium not only boosts resistance to carbide precipitation but also helps fend off intergranular corrosion. These bars boast a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. They shine in terms of oxidation resistance, ductility, and creep strength, making them highly effective in high-temperature and corrosive environments.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-13.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| SS 347H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347 | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 347 | 1.4961 | S34700 |
| SS 347H | 1.4550 | S34709 |
The primary alloying element in Stainless Steel 347 is niobium (Nb), which stabilizes the material against carbide precipitation during welding and high-temperature exposure. This enhances its resistance to intergranular corrosion and improves its overall high-temperature strength.
Stainless Steel 347 is most suitable for applications in the temperature range of 800°C to 1500°F (427°C to 815°C). This range allows it to maintain its strength, corrosion resistance, and stability, particularly in high-temperature environments like furnaces.
Typical dimensions of a Stainless Steel 347 flat bar range from 0.25 inches (6 mm) to 6 inches (150 mm) in thickness and 1 inch (25 mm) to 12 inches (300 mm) in width. Custom sizes are also available.
Stainless Steel 347 Flat Bars are a go-to choice in industries like chemical processing, power generation, petroleum refining, and aerospace, where they often face heat and corrosive substances. They excel in applications such as heat exchangers, furnace parts, boiler components, exhaust manifolds, and pressure vessels, thanks to their ability to handle thermal stress and oxidation. Additionally, these flat bars are utilized in expansion joints, welded components, and high-pressure piping systems. Their exceptional resistance to intergranular corrosion and scaling guarantees reliability even in the harshest conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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