Anucha Metals is a reputable manufacturer and supplier of Stainless Steel 321H Flat Bars based in Bangkok, Thailand. They offer top-notch austenitic stainless steel products that are crafted for outstanding corrosion resistance, high-temperature strength, and long-lasting durability. These flat bars are well-known for their stability at elevated temperatures, resistance to intergranular corrosion, and impressive mechanical properties, making them perfect for a variety of applications in the chemical, petrochemical, aerospace, and industrial sectors. Manufactured to meet international standards, Anucha Metals ensures that these flat bars come with precise dimensions, consistent quality, and reliable performance, catering to industries that demand dependable and high-performance stainless steel solutions.
The composition of Stainless Steel 321H Flat Bars primarily includes iron, chromium (17–19%), nickel (9–12%), and carbon (0.04–0.10%), along with titanium to enhance stability against intergranular corrosion. This blend offers excellent tensile strength, high creep resistance, and durability at elevated temperatures, all while maintaining good ductility and corrosion resistance. The alloy is also easy to fabricate, weld, and machine, allowing it to meet specific engineering needs.
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.
These Stainless Steel 321H Flat Bars find extensive use in industries that require strength, high-temperature performance, and corrosion resistance. In the chemical and petrochemical sectors, they are commonly utilized for heat exchangers, reactors, and piping systems. The aerospace and power generation industries rely on them for turbine components, exhaust systems, and high-temperature structural parts. Additionally, they are used in general engineering and industrial applications, including flanges, shafts, and machinery components that are exposed to high temperatures. With their combination of high-temperature strength, corrosion resistance, and reliability, Stainless Steel 321H flat bars are a go-to choice for demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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