Neith Metals, located in Cairo, Egypt, has established itself as a top-notch manufacturer and supplier of high-quality stainless steel products, catering to a variety of industrial needs. One of their standout offerings is the Stainless Steel 347H Flat Bar, known for its remarkable resistance to corrosion and high-temperature oxidation. Crafted with precision and a commitment to international standards, these flat bars are essential in critical sectors like chemical processing, power generation, and engineering. By blending cutting-edge production technology with expert craftsmanship, Neith Metals guarantees consistent quality, durability, and reliability, making them a go-to supplier for businesses in search of top-tier stainless steel solutions.
The Stainless Steel 347H Flat Bar is an austenitic alloy that features 17–19% chromium, 9–13% nickel, and a carefully controlled carbon content of about 0.04–0.08%, with niobium added to boost its resistance to intergranular corrosion. In terms of mechanical properties, it boasts a tensile strength of around 515 MPa, a yield strength of about 205 MPa, and an elongation of up to 40%. This alloy excels in resisting high-temperature oxidation, creep, and stress corrosion cracking, making it ideal for applications that demand durability in extreme conditions. Its characteristics ensure long-lasting performance, even in harsh industrial settings, while offering corrosion resistance comparable to standard 304 stainless steel.
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.
The Stainless Steel 347H Flat Bar finds its place in industries where high strength, corrosion resistance, and heat stability are crucial. It’s commonly used in manufacturing furnace parts, heat exchangers, boiler components, and equipment for chemical processing. Additionally, it’s well-suited for aerospace, petrochemical, and power generation sectors, where materials need to endure prolonged exposure to high temperatures. These flat bars are also utilized in architectural structures and food processing equipment that face tough conditions. With their impressive mechanical strength, they truly stand out in demanding environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neith Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Alexandria, Egypt
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