Starc Metals stands out as a top-notch manufacturer and supplier of Stainless Steel 321 Square Bars and Rods, proudly based in Canberra, Australia. Known for our commitment to quality, precision, and reliability, we deliver high-performance stainless steel products that not only meet international standards but also cater to our clients’ specific needs. Our Stainless Steel 321 Square Bars and Rods are highly sought after for their remarkable corrosion resistance, exceptional heat resistance, and impressive mechanical strength, making them perfect for tough industrial applications. With cutting-edge manufacturing techniques and rigorous quality control, Starc Metals supports industries like aerospace, chemical processing, petrochemical, and power generation, providing durable and dependable solutions for critical engineering and industrial challenges.
These Stainless Steel 321 Square Bars and Rods 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 outstanding resistance to intergranular corrosion and high-temperature oxidation. In terms of mechanical properties, they boast 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, these bars and rods offer good toughness, ductility, and weldability, making them ideal for high-temperature environments where corrosion resistance and long-term reliability are crucial.
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
Size : Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12
| 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. |
| Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 321 | 1.4541 | S32100 |
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 321 Square Bars are available in a range of sizes, typically from ¼" to 12" in width. Common finishes include mill finish, polished, and cold drawn.
Yes, Stainless Steel 321 Square Rods can be welded using most standard welding techniques. However, post-weld heat treatment may be required to maintain its properties and prevent sensitization.
Stainless Steel 321 Square Bars are generally non-magnetic in their annealed condition. However, they may exhibit slight magnetic properties if cold-worked.
Stainless Steel 321 Square Bars and Rods find extensive use in industries that demand materials resistant to corrosion and heat. In the chemical and petrochemical sectors, they are commonly used in heat exchangers, reactor vessels, and piping systems that come into contact with harsh chemicals. In aerospace, they play a vital role in turbine components, exhaust systems, and high-temperature structural parts. The marine industry relies on them for offshore equipment and systems exposed to seawater. Furthermore, they are essential in power generation, food processing, and pharmaceutical sectors, where durability, thermal stability, and corrosion resistance are paramount.
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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