Desta Steel, a reputable stainless steel manufacturer and supplier located in Addis Ababa, Ethiopia, has built a solid reputation for delivering top-notch steel products that adhere to international standards. One of their standout offerings is the Stainless Steel 347 Flat Bar, which is particularly noted for its remarkable resistance to heat, corrosion, and oxidation. Crafted with cutting-edge techniques and rigorous quality control, these flat bars provide outstanding strength, stability, and ease of use. Designed for high-temperature settings and demanding industrial applications, Desta Steel’s 347 Flat Bars ensure reliable performance, durability, and precision across various sectors, including construction, chemical processing, and mechanical engineering.
Stainless Steel 347 Flat Bars are a type of stabilized austenitic stainless steel that contains 17–19% chromium, 9–13% nickel, and niobium/tantalum to enhance carbide stabilization. This unique blend helps prevent intergranular corrosion and keeps the material strong even at high temperatures. With a tensile strength of about 515 MPa and a yield strength of around 205 MPa, it also boasts excellent resistance to creep and stress rupture. Plus, it can withstand oxidation up to 870°C while maintaining its toughness and ductility after welding. These impressive characteristics make it a fantastic choice for applications that involve heat, pressure, 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 from Desta Steel are widely utilized in industries that demand exceptional high-temperature strength and resistance to corrosion. You’ll often find them in applications like heat exchangers, furnace components, exhaust manifolds, pressure vessels, and chemical processing equipment. Thanks to their outstanding weldability and thermal stability, they’re perfect for use in aerospace, power generation, and refineries. The flat bar shape makes it easy to fabricate them into structural parts, machine components, and support frames. With Desta Steel’s 347 Flat Bars, you can count on remarkable reliability, mechanical integrity, and resistance to scaling, making them a top choice for tough industrial and engineering tasks.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Tariku Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Addis Ababa, Ethiopia
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