Neil Metals is a reputable manufacturer and supplier of Stainless Steel 321 Hex Bars and Rods, located in Kolkata, India. They provide top-notch, heat- and corrosion-resistant stainless steel products suitable for a wide range of industrial applications. The SS 321 hex bars and rods are particularly ideal for high-temperature settings and welded structures, thanks to their titanium stabilization that helps prevent carbide precipitation. These bars are commonly found in industries like aerospace, chemical processing, marine, and power generation, where they deliver impressive mechanical properties and long-lasting performance. With state-of-the-art manufacturing facilities, Neil Metals guarantees precision, quality, and timely delivery to clients both in India and globally.
The composition of Stainless Steel 321 Hex Bars and Rods includes 17–19% chromium, 9–12% nickel, and a small amount of titanium (at least five times the carbon content) to stabilize the alloy and guard against intergranular corrosion. SS 321 boasts a tensile strength of about 515 MPa and a yield strength of around 205 MPa. This alloy retains its strength and oxidation resistance at temperatures reaching up to 870°C. It also provides excellent weldability, ductility, and toughness, especially in high-temperature and welded applications, making it a dependable choice for austenitic stainless steel.
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.
These Stainless Steel 321 Hex Bars and Rods find their place in a variety of high-temperature and corrosive service applications. You’ll often see them used in heat exchangers, expansion joints, furnace components, jet engine parts, exhaust systems, and chemical processing equipment. The hexagonal shape enhances grip and strength, making them perfect for machining into fasteners, shafts, and precision components. SS 321 is especially well-suited for welded structures that experience thermal cycling or continuous high heat, where avoiding carbide precipitation is crucial. Its durability, strength, and resistance to corrosion make it a versatile option for both structural and mechanical applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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