Aiman Metals, located in Kuala Lumpur, Malaysia, has earned a solid reputation as a reliable manufacturer and supplier of top-quality stainless steel products, catering to a diverse array of industries throughout the region. One of our standout products is the Stainless Steel 347H Flat Bar, celebrated for its remarkable high-temperature strength and resistance to corrosion. This stabilized austenitic stainless steel is perfect for tough applications that involve heat and pressure. At Aiman Metals, we pride ourselves on providing materials that meet international standards, along with prompt service, technical know-how, and competitive pricing to fulfill your industrial and structural stainless steel requirements.
Stainless Steel 347H Flat Bar is an austenitic, niobium-stabilized stainless steel that contains Chromium (17–19%), Nickel (9–13%), Carbon (0.04–0.10%), and Niobium (≥10xC), which boosts its high-temperature strength. It also has controlled amounts of Manganese, Silicon, Phosphorus, and Sulfur. This alloy boasts a tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. Its outstanding creep and stress rupture resistance make it suitable for long-term exposure to high temperatures, while still maintaining its structural integrity and corrosion resistance in challenging environments.
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 Stainless Steel 347H Flat Bar is widely utilized in applications that demand high mechanical strength and corrosion resistance at elevated temperatures. You’ll often find it in heat exchangers, boiler tubes, furnace components, pressure vessels, exhaust systems, and radiant superheaters. Industries like oil & gas, petrochemical, aerospace, power generation, and chemical processing depend on 347H for its reliable performance in high-heat and corrosive settings. Its niobium-stabilized structure effectively prevents intergranular corrosion, making it an excellent choice for welding and fabrication in systems that experience thermal cycling. The durability of this alloy ensures it stands the test of time in demanding conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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