Ojas Pipes and Tubes, a well-respected manufacturer and supplier located in Kolkata, India, specializes in high-performance Stainless Steel 321H Hex Bars and Rods. These products are crafted to withstand the tough demands of high-temperature and corrosive industrial environments. With a strong focus on quality and precision, Ojas guarantees that these hex bars are made from top-notch raw materials and cutting-edge techniques. Renowned for their impressive mechanical strength, thermal stability, and weldability, SS 321H hex bars are perfect for industries like petrochemical, pharmaceutical, and power generation. Ojas Pipes and Tubes proudly serves both local and international markets, ensuring timely delivery and solutions tailored to customer needs.
Stainless Steel 321H Hex Bar/Rod is stabilized with titanium and features a higher carbon content (0.04–0.10%) to enhance its high-temperature strength. Typically, its composition includes 17–19% chromium, 9–12% nickel, and trace amounts of titanium. The mechanical properties boast a minimum tensile strength of 515 MPa, yield strength of 205 MPa, and an elongation of 35%. It also shows remarkable resistance to creep and stress rupture, making it ideal for high-temperature applications. Its hexagonal shape allows for precise torque transmission in mechanical assemblies and enhances machinability in various industrial settings.
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 perfect for high-temperature applications, oxidizing environments, and thermal cycling. They find common use in heat exchangers, boiler tubes, exhaust manifolds, refinery equipment, and furnace components due to their resistance to intergranular corrosion. With their superior mechanical properties and hexagonal design, they are also suitable for aerospace parts, automotive fasteners, chemical processing equipment, and industrial shafts. Additionally, these bars are widely utilized in pharmaceutical facilities and food processing machinery, ensuring durability and hygiene. The 321H grade guarantees exceptional performance in demanding environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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