Situated in the vibrant industrial landscape of Addis Ababa, Tariku Metals has built a reputation for supplying top-tier materials that meet the rigorous demands of modern construction and manufacturing. We are proud to be your trusted local source for the Stainless Steel 347H Flat Bar, a high-performance alloy specifically engineered for resilience in challenging environments. Our commitment ensures you receive a product that guarantees both exceptional strength and long-lasting durability for your most critical projects.
The strength of Stainless Steel 347H lies in its careful composition, which features the addition of columbium. This element acts as a stabilizer, making the flat bar exceptionally resistant to sensitization, which can lead to corrosion. This specific chemistry provides it with outstanding mechanical properties, including high tensile strength and excellent creep resistance, allowing it to maintain its integrity and performance even under sustained exposure to extreme temperatures and stress.
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.
This unique combination of properties makes the Stainless Steel 347H Flat Bar an indispensable component across several key industries. It is widely used in the fabrication of heat exchangers, furnace parts, and aircraft engine components where high temperatures are a constant factor. Furthermore, its reliability makes it a preferred choice for structural applications in chemical processing plants and the power generation sector, ensuring safety and longevity in environments where failure is not an option.
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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