Aiman Metals is a reliable producer and premier distributor of Stainless Steel 321 Bars and Rods, designed with high corrosion resistance and exceptional high-temperature strength. Our titanium-stabilized austenitic stainless steel is specially formulated to avoid intergranular corrosion even when exposed to high temperatures for extended periods of time. Our products are produced following stringent international standards to guarantee highest performance in challenging applications like chemical processing, aerospace, thermal systems, and heat exchangers. Available in a variety of sizes and finishes, our 321 rods and bars are precisely engineered for reliability, durability, and consistent quality. At Aiman Metals, we supply stainless steel solutions that lead the performance and value.
Stainless Steel 321 Rods and Bars have 17–19% chromium, 9–12% nickel, and up to 2% manganese, and titanium is added at a minimum of five times the content of carbon for stabilization against carbide precipitation. Having a carbon content not exceeding 0.08%, the alloy possesses high weldability, resistance to oxidation, and resistance to structure stability at elevated temperatures. Mechanical properties are tensile strength of about 515 MPa, yield strength of 205 MPa, elongation of 40%, and hardness of 95 HRB. This blend of elements and characteristics guarantees superb performance in continuous and intermittent high-temperature service.
Specification : ASTM A276/ASME SA276, SA479/A479
Standard : DIN, EN, ASTM, JIS, ASME, BS, AISI
Round Bars : OD 4 to 500mm
Bright Bars : OD 4 to 100mm
Hex Bars : 18 to 57mm (11/16″ to 2-3/4″)
Square Bars : 18mm to 47mm (11/16″ to 1-3/4″)
Finish : Matt Finish, Bright Polished, Black, NO.4 Finish, Rough Turned, BA Finish
Length : cut to size 1 – 6 Meters,
Form : Hex, Square, Round, Rectangle Etc.
| 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 offers excellent resistance to oxidation and corrosion, especially in high-temperature environments. It also provides exceptional stability and strength, making it suitable for various industrial applications.
Yes, Stainless Steel 321 is well-suited for welding. Its titanium stabilization prevents intergranular corrosion during welding, ensuring structural integrity and longevity.
In Aiman Metals, our Stainless Steel 321 Bars and Rods are put through intensive quality checks for assured dimensional precision, mechanical strength, and corrosion resistance. With high thermal stability, our bars and rods are particularly suitable for applications at high temperatures like furnace parts, exhaust manifolds, heat exchangers, and expansion joints. The titanium stabilization ensures higher resistance against oxidation and scaling, and they are extremely reliable in aerospace, petrochemical, and food processing sectors. They are also extensively utilized in the fabrication of pressure vessels and piping for high-temperature service. With its established long life in demanding environments, our 321 stainless steel materials provide unparalleled reliability and long-term performance.
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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