Ojas Pipes and Tubes, located in Kolkata, India, has made a name for itself as a top-notch manufacturer and supplier of high-quality Stainless Steel 321H Round Bars and Rods. These products are celebrated for their outstanding high-temperature strength and resistance to intergranular corrosion. Made from premium titanium-stabilized stainless steel, they’re perfect for tough industrial applications that demand thermal stability and excellent weldability. With a strong commitment to quality, precise dimensions, and timely deliveries, Ojas caters to clients in the petrochemical, power generation, and process industries. Our Stainless Steel 321H offerings guarantee durability, longevity, and peak performance, even in the harshest environmental and mechanical conditions
Stainless Steel 321H Round Bars and Rods are crafted from titanium-stabilized, high-carbon austenitic stainless steel, featuring chromium (17–19%), nickel (9–12%), and titanium (at least five times the carbon content), with an increased carbon level (~0.04–0.10%) for enhanced high-temperature strength. These bars boast excellent oxidation resistance up to 900°C, with a tensile strength of around 515 MPa and a yield strength of about 205 MPa. They also maintain good ductility and toughness in both hot and cold conditions. This alloy showcases remarkable creep resistance and structural stability under extended thermal exposure, making it ideal for pressure and heat-intensive applications
Standard : 321H / 1.4878
Range : 3.17mm to 350mm dia
Designation : ASTM A276, ASME SA276
Finish : Bright, Black, Polish
Thickness: 4.0mm – 100mm
Type: Bar, Bright Bar, Black Bars, Hex Bar, Square Bar, Rods, Polish Bar, Forged Bar, Round Bar
Length : Random, Fix & Cut Length
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Ti |
| 321H | 0.04 – 0.10 | 2 max | 0.75 max | 0.045 max | 0.03 max | 17 – 19 | 3 – 4 | 9 – 12 | – | 4xC min 0.60% max |
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000, MPa – 205 |
| Elongation | 35 % |
| Size (mm) | 10×10 | 12×12 | 16×16 | 20×20 | 25×25 | 32×32 | 40×40 | 50×50 |
|---|---|---|---|---|---|---|---|---|
| kg/m | 0.81 | 1.16 | 2.06 | 3.22 | 5.03 | 8.24 | 12.87 | 19.60 |
| Standard | SS 321H |
| UNS | S32109 |
| WERKSTOFF NR. / DIN | 1.4878 |
Yes, Stainless Steel 321H Round Bars and Rods can be used for natural gas applications. Their excellent resistance to high temperatures and corrosion makes them suitable for gas processing and pipeline systems.
Stainless Steel 321H Round Bars and Rods find extensive use in petrochemical and power plants, exhaust systems, boiler components, and high-pressure steam pipes, thanks to their remarkable heat resistance and mechanical strength. Their stability at elevated temperatures makes them perfect for heat exchangers, furnace parts, and refinery equipment. The high carbon content ensures superior performance in high-temperature environments, while titanium stabilization prevents carbide precipitation during welding. These bars are also utilized in chemical processing, aerospace, and marine applications, showcasing their versatility and reliability across various demanding sectors.
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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