Dhruv Metals, based in Hyderabad, India, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 321 Flat Bars, catering to a variety of industrial needs. Known for their precision engineering and strict compliance with international standards, Dhruv Metals provides 321 flat bars that excel in resisting intergranular corrosion and oxidation, even at high temperatures. With cutting-edge production capabilities, a talented workforce, and a strong focus on customer satisfaction, Dhruv Metals guarantees durable, high-performance stainless steel solutions that meet the rigorous demands of industries such as aerospace, petrochemical, thermal processing, and general fabrication.
Stainless Steel 321 Flat Bar is a titanium-stabilized austenitic stainless steel, featuring around 17-19% chromium, 9-12% nickel, and titanium levels that can be up to five times the carbon content. This unique composition offers remarkable resistance to intergranular corrosion after being exposed to temperatures within the chromium carbide precipitation range. The flat bar boasts a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. It maintains excellent mechanical properties at elevated temperatures and showcases great weldability and formability, making it perfect for both continuous and intermittent high-heat 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 industries that require resistance to intergranular corrosion and high-temperature oxidation. Common applications include aircraft exhaust manifolds, furnace components, expansion joints, heat exchangers, thermal processing equipment, and chemical processing plants. These flat bars are also utilized in refinery equipment, high-temperature welded structures, and pipelines that transport hot gases or corrosive fluids. The titanium stabilization in SS 321 makes it ideal for components subjected to intermittent heating and cooling cycles, ensuring structural integrity and a long service life even in demanding operating conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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