Rashid Metals stands out as a leading manufacturer and supplier located in Muscat, Oman, specializing in top-notch stainless-steel products tailored for tough industrial applications. One of their standout offerings, the Stainless Steel 347H Flat Bar, is celebrated for its remarkable heat resistance, corrosion protection, and structural strength. Crafted using cutting-edge manufacturing methods and rigorous quality checks, Rashid Metals guarantees that every flat bar aligns with international standards and meets specific customer needs. Their dedication to precision, durability, and prompt delivery has earned them a reputation as a reliable partner for industries like petrochemical, power generation, construction, and engineering, both in Oman and around the globe.
The Stainless Steel 347H Flat Bar is a high-carbon, niobium-stabilized austenitic stainless steel that includes chromium, nickel, and columbium (niobium), which boosts its resistance to intergranular corrosion. The increased carbon content enhances its strength at high temperatures, creep resistance, and overall mechanical stability. On the mechanical side, SS 347H boasts impressive tensile strength, good toughness, and dependable performance even under extended heat exposure. Its stabilization feature prevents carbide precipitation during welding or thermal cycling, ensuring it maintains its structural integrity and oxidation resistance. These characteristics make it perfect for applications that demand durability, high-temperature performance, and consistent mechanical reliability in challenging industrial settings.
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 347H | 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 347H 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 347H 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 347H 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.
You’ll find Stainless Steel 347H Flat Bar widely utilized in sectors that require high-temperature strength, corrosion resistance, and mechanical durability. It’s often used in heat exchangers, boiler tubes, furnace components, and high-temperature piping systems. In the petrochemical, oil and gas, and power generation industries, SS 347H flat bars are ideal for reactor parts, flanges, fittings, and structural supports that face continuous thermal stress. Their excellent weldability and oxidation resistance also make them a great fit for aerospace and chemical processing applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rashid Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Muscat, OMAN
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