Mourad Metals is a well-respected manufacturer and supplier located in Tunis, Tunisia, known for its top-notch Stainless Steel 347H Flat Bars. The company prides itself on providing flat bars that boast exceptional strength, corrosion resistance, and precise dimensions, all while adhering to international standards for rigorous industrial applications. With state-of-the-art manufacturing facilities and a talented workforce, Mourad Metals caters to both local and international markets. Their dedication to product quality, prompt delivery, and competitive pricing has made them a reliable supplier for industries such as power generation, chemical processing, petrochemical, and heavy engineering.
Stainless Steel 347H Flat Bars are crafted from a stabilized austenitic stainless steel alloy that includes chromium (17–19%), nickel (9–13%), and niobium, which helps prevent carbide precipitation and boosts resistance to intergranular corrosion. The “H” grade is characterized by a higher carbon content, providing excellent strength at high temperatures and resistance to creep. In terms of mechanical properties, 347H flat bars demonstrate outstanding tensile and yield strength, along with good ductility and toughness even at elevated temperatures. The material’s stability and resistance to thermal fatigue make it perfect for critical and long-term applications.
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.
These Stainless Steel 347H Flat Bars find extensive use in industries that demand high-temperature performance and corrosion resistance. Common applications include components for boilers, heat exchangers, pressure vessels, turbine parts, and equipment for chemical processing. They are also utilized in the petrochemical, power generation, and aerospace sectors, where thermal stress and oxidation are significant concerns. The blend of mechanical strength, durability, and high-temperature stability makes 347H flat bars ideal for both structural and functional applications in challenging industrial settings.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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