Dhruv Metals, located in Hyderabad, India, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 321H Hex Bars and Rods, specifically designed for high-temperature and high-pressure environments. Renowned for their precision in manufacturing, Dhruv Metals provides 321H hex bars that not only boast impressive strength but also offer outstanding resistance to oxidation and intergranular corrosion. These hexagonal bars find their place in various industries that demand enhanced durability and performance, especially under elevated temperatures. With a strong commitment to quality, custom sizing, and prompt delivery, Dhruv Metals caters to a range of sectors, including petrochemical, thermal, aerospace, and marine industries, both in India and abroad.
The composition of Stainless Steel 321H Hex Bars and Rods includes 17–19% chromium, 9–12% nickel, and titanium (at least five times the carbon content) for stabilization, along with a higher carbon content (0.04–0.10%) compared to standard 321, which boosts high-temperature strength. Their mechanical properties feature a tensile strength ranging from 515 to 750 MPa, yield strength between 205 and 275 MPa, and an elongation of about 40%. These bars excel in creep resistance and maintain their structural integrity even at high temperatures. The hexagonal design not only enhances strength but also facilitates easy machining, making them ideal for precision applications in challenging environments.
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. |
| SS 321H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| 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. |
| SS 321H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| 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 321H Hex Bars/Rods are highly resistant to oxidation and intergranular corrosion due to titanium stabilization, making them ideal for high-temperature environments. They offer excellent strength, durability, and resistance to sulfur compounds, ensuring reliability in extreme conditions.
SS 321H Hex Bars/Rods are commonly used in aerospace, chemical processing, power generation, petrochemical, and pharmaceutical industries. They are ideal for high-temperature applications such as heat exchangers, pressure vessels, exhaust systems, and furnace components due to their excellent corrosion resistance.
SS 321H Hex Bars/Rods can be welded easily, thanks to their titanium stabilization, which prevents sensitization and intergranular corrosion. However, it's essential to use low-carbon filler materials to maintain the material's properties and prevent carbide precipitation. Pre-heating and post-weld heat treatment may be required for optimal results.
Stainless Steel 321H Hex Bars and Rods are widely utilized in scenarios that involve high temperatures, pressure, and corrosive conditions. They are frequently found in heat exchangers, refinery equipment, high-temperature chemical processing, furnace components, exhaust stacks, and boiler parts. In the aerospace and automotive industries, 321H is particularly appreciated for its thermal stability and resistance to oxidation. Moreover, it is employed in expansion joints, manifolds, and welded equipment where preventing intergranular corrosion post-welding is crucial. These characteristics make 321H hex bars a trustworthy choice for long-lasting, high-performance industrial applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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