Isis Metals stands out as a reliable manufacturer and supplier of Stainless Steel 321 Flat Bars right here in Manila, Philippines. We take pride in offering top-notch stainless steel products that are built to thrive in high-temperature and corrosive settings. Our flat bars are crafted with precision, utilizing cutting-edge manufacturing techniques to guarantee exceptional strength, durability, and precise dimensions. With titanium stabilization, our Stainless Steel 321 Flat Bars boast impressive resistance to intergranular corrosion and oxidation. We serve a variety of industries, including petrochemical, power generation, aerospace, and chemical processing, providing dependable stainless steel solutions that adhere to strict performance and quality standards for critical industrial applications.
When it comes to composition and mechanical properties, our Stainless Steel 321 Flat Bars are austenitic stainless steels stabilized with titanium, featuring chromium (17–19%), nickel (9–12%), and titanium (up to 0.7%). The addition of titanium helps prevent carbide precipitation during welding and exposure to high temperatures, boosting resistance to intergranular corrosion. These bars showcase a tensile strength of about 515 MPa and a yield strength of 205 MPa, along with impressive ductility and toughness. They also excel in resisting oxidation up to 900°C, ensuring they maintain their structural integrity and mechanical strength even under prolonged heat and thermal cycling.
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.
In terms of uses and applications, Stainless Steel 321 Flat Bars are a go-to choice for projects that demand high-temperature strength and corrosion resistance. They’re perfect for heat exchangers, furnace parts, exhaust manifolds, expansion joints, and boiler components. Thanks to their titanium stabilization, these bars are ideal for welded constructions that face high heat. You’ll find them in the aerospace, chemical processing, and petroleum refining sectors, as well as in pressure vessels and power plant components where thermal stability and oxidation resistance are crucial.
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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