Starc Metals stands out as a leading manufacturer and supplier of Stainless Steel 321 Hollow Bars, proudly based in Canberra, Australia. Known for our commitment to quality, precision, and reliability, we provide high-performance stainless steel products that not only meet international standards but also cater to our clients’ specific needs. Our Stainless Steel 321 Hollow Bars are highly sought after for their remarkable corrosion resistance, exceptional high-temperature strength, and mechanical durability, making them perfect for tough industrial settings. By employing cutting-edge manufacturing techniques and rigorous quality control, Starc Metals supports industries such as aerospace, chemical processing, petrochemical, and power generation, delivering robust, long-lasting solutions that prioritize efficiency, safety, and outstanding performance in critical applications.
These Stainless Steel 321 Hollow Bars are made up of 17–19% chromium, 9–12% nickel, and 0.08–0.70% titanium, along with trace amounts of carbon, manganese, and silicon. This austenitic stainless steel is known for its excellent resistance to intergranular corrosion and high-temperature oxidation. In terms of mechanical properties, it boasts a tensile strength ranging from 515 to 750 MPa, a yield strength of about 205 to 450 MPa, and a density of 8 g/cm³. Additionally, Stainless Steel 321 Hollow Bars offer good ductility, toughness, and weldability, making them ideal for high-temperature and corrosion-prone applications that require long-term reliability.
| Standard | ASTM A276 / A479, ASME SA276 / A479 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 106 |
The addition of titanium in SS 321 stabilizes carbon, preventing the formation of chromium carbides at grain boundaries. This reduces the risk of intergranular corrosion, improving the alloy's resistance to corrosion in high-temperature environments and aggressive chemical conditions.
In aerospace, SS 321 Hollow Bar is used for exhaust systems, jet engine components, and fuel systems due to its high-temperature resistance. In the chemical industry, it's used for heat exchangers, reactors, and piping in corrosive environments.
These bars find extensive use in industries that require materials resistant to corrosion and heat. In the chemical and petrochemical sectors, they are perfect for heat exchangers, piping, and reactor vessels that come into contact with aggressive chemicals. In aerospace, they are utilized in turbine components, exhaust systems, and high-temperature structural parts. The marine industry also benefits from their use in equipment exposed to seawater and offshore structures. Furthermore, Stainless Steel 321 Hollow Bars are essential in power generation, pharmaceutical, and food processing industries, where durability is key.
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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