Aiman Metals is a well-respected manufacturer and supplier of top-quality stainless steel products, based in Kuala Lumpur, Malaysia. One of their standout offerings is the Stainless Steel 321 Rectangular Bar, which is a titanium-stabilized austenitic alloy known for its impressive resistance to intergranular corrosion. With a strong commitment to quality, precision, and timely delivery, Aiman Metals caters to a wide range of industries, including aerospace, automotive, construction, and chemical processing. Thanks to their cutting-edge facilities and skilled team, every SS 321 Rectangular Bar meets international standards, making Aiman Metals a reliable choice for stainless steel solutions.
Stainless Steel 321 Rectangular Bars are primarily made up of iron, along with 17–19% chromium, 9–12% nickel, and titanium (at least five times the carbon content) to stabilize the structure and prevent carbide precipitation. This alloy is known for its excellent resistance to oxidation and corrosion, especially in high-temperature environments. It boasts a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of roughly 40%. SS 321 retains its mechanical strength and toughness even at temperatures reaching 870°C, making it perfect for applications that demand long-lasting durability in heat-intensive settings.
| Grade | Ti | Mn | C | Si | S | P | Mo | Cr | Ni |
| SS 321 | 5(C+N) to 0.70 maximum | 2.0 maximum | 0.08 maximum | 1.0 maximum | 0.030 maximum | 0.045 maximum | – | 17.00 to 19.00 | 9.00 to 12.00 |
| Melting Point | Density | (0.2%Offset) Yield Strength | Tensile Strength | Elongation |
| 1457 °C (2650 °F) | 8.0 g/cm3 | Psi – 30000 , MPa – 205 | Psi – 75000 , MPa – 515 | 35 % |
| WERKSTOFF NR. | STANDARD | JIS | UNS | EN |
| 1.4541 | SS 321 | SUS 321 | S32100 | X6CrNiTi18-10 |
Stainless Steel 321 Rectangular Bars find extensive use in industries that require high resistance to heat and intergranular corrosion. They are commonly used in exhaust manifolds, heat exchangers, aircraft engine components, furnace parts, and thermal processing equipment. The titanium stabilization makes them particularly well-suited for welded structures that are exposed to prolonged high temperatures. In the chemical and petrochemical sectors, SS 321 rectangular bars are utilized in reactors, piping systems, and flue gas scrubbers.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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