Starc Metals, located in Canberra, Australia, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel products, with a particular focus on Stainless Steel 321 Flat Bars. These bars are celebrated for their impressive corrosion resistance, high-temperature strength, and overall durability. Starc Metals is committed to ensuring that every product adheres to strict industry standards. The company caters to various sectors, including aerospace, chemical processing, automotive, and industrial engineering, offering timely deliveries, competitive pricing, and exceptional quality. By employing advanced production methods and rigorous quality control, Starc Metals provides stainless steel solutions that promise long-lasting reliability, strength, and precision, making their Stainless Steel 321 Flat Bars a go-to choice for demanding commercial and industrial applications throughout Australia.
Stainless Steel 321 Flat Bars are a type of austenitic stainless steel that’s stabilized with titanium to prevent intergranular corrosion. Typically, their composition features 17–19% chromium, 9–12% nickel, 0.08% carbon, along with trace amounts of manganese, silicon, and titanium. These flat bars are known for their remarkable mechanical strength, stability at high temperatures, and good weldability. In terms of mechanics, they boast a tensile strength ranging from 515 to 750 MPa, a yield strength of about 205 to 275 MPa, and a hardness of approximately 170 to 200 HB. Their unique blend of durability, corrosion resistance, and high-temperature performance makes them perfect for various industrial and engineering applications.
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 321 | 0.08 max. | 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 321 | 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 321 | 1.4541 | S32100 |
The primary alloying element in Stainless Steel 321 is chromium, typically comprising around 17-19%. Chromium provides corrosion resistance, while titanium is added to improve high-temperature stability and prevent carbide precipitation during welding or prolonged exposure to elevated temperatures.
Stainless Steel 321 is most suitable for temperatures ranging from 800°F to 1500°F (427°C to 815°C). It excels in high-temperature environments due to its titanium stabilization, which prevents carbide precipitation and maintains corrosion resistance under prolonged heat exposure.
Typical dimensions of Stainless Steel 321 flat bars vary, with widths ranging from 20 mm to 150 mm, thicknesses between 3 mm and 50 mm, and lengths up to 6 meters, customizable based on specific requirements.
Stainless Steel 321 Flat Bars find extensive use in situations that demand corrosion resistance, strength, and the ability to perform under high temperatures. They are commonly utilized in the production of aerospace components, chemical processing equipment, exhaust systems, heat exchangers, and structural parts that are exposed to elevated temperatures. Their outstanding resistance to intergranular corrosion and thermal stress makes them ideal for automotive, industrial machinery, and petrochemical applications. Moreover, they are also used in pressure vessels, piping, and frameworks in chemical processing environments.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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