Located in Amman, Jordan, Sabra Metals is a trusted name in the manufacturing and supply of Stainless Steel 321H Hollow Bars, specifically designed for high-temperature and pressure applications. These hollow bars are crafted from titanium-stabilized austenitic stainless steel with a higher carbon content, providing exceptional strength and oxidation resistance even at elevated temperatures. With a commitment to precision, Sabra Metals maintains strict manufacturing and inspection processes to ensure accurate dimensions, uniform wall thickness, and consistent material quality. Their SS 321H hollow bars are essential for industries like power generation, petrochemical, oil and gas, and heavy engineering, where long-term thermal stability and reliability are crucial.
Stainless Steel 321H Hollow Bars are composed of chromium (17–19%), nickel (9–12%), titanium stabilization, and a higher carbon content than SS 321. This unique blend enhances resistance to carbide precipitation and boosts strength at high temperatures. On the mechanical side, SS 321H delivers superior tensile and creep strength, along with good ductility and impressive toughness. It remains structurally stable even under prolonged heat exposure, while also offering excellent corrosion and oxidation resistance in high-temperature settings.
| Standard | ASTM A276 / A479, ASME SA276 / A479 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321h | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | |
|---|---|---|---|---|---|
| at 68 °F | at 68 – 212°F | at 68 – 1832°F | at 200°F | at 32 – 212°F | in tension (E) |
| 0.286 | 9.2 | 20.5 | 9.3 | 0.12 | 28 x 106 |
SS 321H hollow bars are widely used in industries like aerospace, petrochemical, power generation, and chemical processing. They are preferred for high-temperature applications due to their excellent thermal stability, oxidation resistance, and resistance to stress-induced cracking at elevated temperatures.
SS 321H hollow bars are typically available in diameters ranging from 25mm to 500mm, with tolerances conforming to ASTM or ISO standards. Common surface finishes include annealed, pickled, and polished, catering to various industrial and aesthetic requirements.
Stainless Steel 321H Hollow Bars find extensive use in high-temperature and mechanically demanding applications. Common applications include components for heat exchangers, parts for furnaces, boiler tubes, pressure vessels, and high-temperature piping systems. They are also integral to oil and gas processing, petrochemical facilities, power generation units, and the manufacturing of thermal equipment. The hollow bar design not only reduces weight but also preserves strength, making them ideal for shafts, sleeves, and structural components that operate in elevated-temperature environments, ensuring a long service life and dependable performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sabra Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Amman, Jordan
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