Chuck Metals, based in Pulau Ujong, Singapore, stands out as a leading manufacturer and supplier of top-notch stainless steel products, including Stainless Steel 321 Hex Bars and Rods. With a strong focus on quality, precision, and keeping customers happy, Chuck Metals provides dependable stainless steel solutions designed for tough industrial settings. The 321 Hex Bar/Rod is particularly recognized for its impressive resistance to intergranular corrosion and its strength at high temperatures. With a commitment to consistent product availability, prompt delivery, and a dedicated technical support team, Chuck Metals has built a solid reputation among clients in various sectors like aerospace, chemical processing, and power generation throughout Singapore and Southeast Asia.
Stainless Steel 321 Hex Bar/Rod is an austenitic stainless steel alloy that’s stabilized with titanium, which helps prevent carbide precipitation during welding and exposure to high temperatures. Its typical chemical makeup includes chromium (17–19%), nickel (9–12%), and titanium (at least five times the carbon content), with carbon levels reaching up to 0.08%. This alloy boasts a tensile strength of around 75 ksi (515 MPa), a yield strength of 30 ksi (205 MPa), and an elongation of 40%. 321 maintains excellent mechanical strength and oxidation resistance in continuous service up to 900°C, making it perfect for environments that experience prolonged heat.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| 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 | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 321 | 8 | 1454 ℃ | 515 | 205 | 40 | 217 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
SS 321 hex bars/rods are highly suitable for high-temperature applications due to their excellent resistance to oxidation and scaling, particularly in environments above 900°C. The addition of titanium stabilizes the material, preventing carbide precipitation, and enhancing its resistance to intergranular corrosion, making it ideal for aerospace and industrial applications.
SS 321 hex bars/rods are commonly used in industries requiring high-temperature resistance, such as aerospace, chemical processing, and power generation. Applications include exhaust systems, heat exchangers, furnace components, and reactors. Their resistance to corrosion, oxidation, and scaling makes them ideal for environments with elevated temperatures and aggressive conditions.
SS 321 hex bars/rods can be welded easily, but special care is needed to prevent carbide precipitation. Preheating and post-weld heat treatment are recommended to avoid weld embrittlement. Using titanium-stabilized filler metals helps maintain the alloy’s resistance to intergranular corrosion, ensuring weld integrity in high-temperature applications.
Stainless Steel 321 Hex Bar/Rod is commonly used in situations where heat and corrosion resistance are essential. It’s particularly suited for aircraft exhaust systems, thermal oxidizers, furnace components, and equipment used in chemical processing. The hexagonal shape enhances grip, allows for precise machining, and provides structural strength in fastening and mechanical assemblies. Thanks to its titanium stabilization, the 321 Hex Bar/Rod is resistant to intergranular corrosion after welding, making it an excellent choice for heat exchangers.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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