Aung Metals, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, has built a solid reputation for providing top-notch Stainless Steel 347H Flat Bars. These bars are specifically crafted for high-temperature applications, boasting remarkable resistance to oxidation, corrosion, and intergranular attack. With a commitment to precision manufacturing and rigorous quality control, Aung Metals ensures that its Stainless Steel 347H Flat Bars meet international standards, making them perfect for industries that demand durability and high performance. The company offers these bars in a variety of dimensions and finishes to meet the diverse needs of various industries, guaranteeing reliability, strength, and a long service life even in tough environments.
The composition of Stainless Steel 347H Flat Bars includes chromium (17–19%), nickel (9–13%), carbon (0.04–0.10%), along with manganese, silicon, and stabilizing niobium. This niobium plays a crucial role in enhancing resistance to carbide precipitation during welding and exposure to high temperatures. These bars exhibit a tensile strength of about 515 MPa, a yield strength of around 205 MPa, and an elongation of 40%. Their impressive creep strength and excellent mechanical stability make them ideal for extended use in high-temperature settings without compromising structural integrity or corrosion resistance.
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.
Stainless Steel 347H Flat Bars find extensive applications in areas that require heat and corrosion resistance, such as chemical processing plants, power generation facilities, and petroleum refining. They are particularly well-suited for equipment like heat exchangers, pressure vessels, boiler tubes, and exhaust manifolds. Thanks to their high-temperature strength, these bars are also a great fit for manufacturing in aerospace, marine, and thermal equipment sectors. Moreover, they are utilized in food processing machinery and the pharmaceutical industry, where cleanliness and oxidation resistance are paramount. Their durability and versatility make them an excellent choice for both structural and fabrication applications.
Stainless Steel 347H flat bars are used due to the excellent resistance they offer in the field of intergranular corrosion, oxidation, and stress corrosion cracking at high temperatures. They are normally used in petrochemical, power generation, aerospace fields in which equipment is exposed to extreme conditions; like heat exchangers, boilers, furnace parts. Their high resistance to temperatures up to 900°C makes them appropriate for welding, fabrication, and manufacturing of components requiring high strength, durability, and corrosion resistance in hostile environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
Copyright 2024 Aung Metals. All rights reserved
