Isis Metals is a leading manufacturing and supply chain based in Manila, Philippines, specializing in high quality steel products for a range of industries. With years of experience, the company offers a wide range of metal solutions, including stainless steel, aluminum, and more. A standout product in their portfolio is the stainless steel 321H flat bar, known for its resistance to oxidation and high temperature environment Ideal for applications in medicine, power plants and space, Isis Metals ensures each piece meets exacting quality standards. and offers a cost-effective solutions.
Stainless Steel 321H Flat Bars are made up of chromium (17–19%), nickel (9–12%), carbon (0.04–0.10%), and titanium (≥5×C%), along with small amounts of manganese, silicon, and phosphorus. The increased carbon content gives these bars enhanced high-temperature strength and creep resistance compared to the 321 grade. They boast a tensile strength of 515 MPa, yield strength of 205 MPa, and an elongation of 40%. With excellent oxidation resistance, mechanical durability, and thermal stability, Stainless Steel 321H Flat Bars are well-suited for long-term use in heat and corrosive 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
| SS 321H | 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 | C | Cr | Mn | Ni | P | S | Si |
| SS 321H | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 321H | 1.4438 | S32109 |
The primary alloying element in Stainless Steel 321H is titanium (Ti), which stabilizes the steel and prevents carbide precipitation during welding. It also contains chromium (Cr) for corrosion resistance and higher carbon content for increased strength at elevated temperatures.
Stainless Steel 321H is most suitable for high-temperature applications in the range of 427°C to 816°C (800°F to 1500°F). It offers excellent oxidation resistance and stability in these temperatures, making it ideal for heat exchangers and furnace components.
Typical dimensions of a Stainless Steel 321H flat bar range from 3mm to 150mm thickness, 25mm to 600mm width, and up to 6 meters in length. These dimensions vary based on manufacturer specifications and customer requirements.
Stainless Steel 321H Flat Bars are extensively utilized in chemical processing, oil refining, power generation, and aerospace industries, thanks to their impressive high-temperature strength and corrosion resistance. They are perfect for crafting heat exchangers, pressure vessels, furnace components, expansion joints, and exhaust manifolds. Additionally, these flat bars are used in boiler equipment, heat treatment fixtures, and catalytic converter systems. Their remarkable formability, weldability, and resistance to intergranular corrosion make them ideal for structures that operate under thermal stress.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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