Chung Metal offers high-quality Stainless Steel 321H Round Bars and Rods, a high-carbon variant of SS 321, specifically created for increased creep strength and sustainability against stress at high temperatures. SS 321H is stabilized with titanium, which inhibits intergranular corrosion during and after welding. The round bar shape provides superior strength and workability and is well suited for pressure vessels, heat exchangers, and high-temperature service use. Chung Metal supplies 321H round bars with superior surface finish, structural integrity, and dimensional accuracy, which are applied in chemical processing, power generation, and petrochemical refining industries.
SS 321H has 17–19% chromium, 9–12% nickel, titanium, and 0.04–0.10% carbon. It provides tensile strength of 550–750 MPa, yield strength of 200–300 MPa, and elongation of ~35%. It is stable up to 870°C. It is non-magnetic in the annealed state and strong resistance to carbide precipitation. The circular form is ideal for rotating and heavy-load 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.
321H round rods/round bars apply to thermal processing equipment, expansion joints, heat exchangers, pressure vessels, and furnace components. Their high-temperature stability and resistance against corrosion qualify them for aerospace, power plants, oil refineries, and chemical plants. Round shape accommodates use in shafts, spacers, rollers, and machined fasteners. SS 321H is a popular material for high-temperature welded parts, and Chung Metal offers them in mill-finished or polished states, specific to demanding operating environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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