Welcome to Tariku Metals, your trusted partner in Addis Ababa for premium industrial materials. We take pride in supplying high-caliber stainless steel solutions engineered for Ethiopia’s demanding projects. Our Stainless Steel 321H Hollow Bar is a prime example, offering exceptional performance for critical applications. We understand that reliability is non-negotiable, which is why we ensure this product meets the highest standards, providing our clients with the durable and dependable materials needed to build and innovate with complete confidence.
The strength of the 321H grade comes from its composition, which is stabilized with titanium to resist sensitization. This means it holds up exceptionally well under high temperatures, maintaining its integrity in challenging environments. Mechanically, it offers a great balance of toughness and excellent creep strength, making it a reliable choice where both pressure and heat are significant factors, ensuring long-term performance and safety in your most important applications.
| 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 offers superior high-temperature strength and creep resistance due to its titanium stabilization, unlike SS 304 and SS 316. It excels in thermal stability, oxidation resistance, and prolonged high-temperature applications but has lower corrosion resistance than SS 316.
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.
The unique properties of this hollow bar make it an ideal choice for a range of demanding industries. You will often find it at the heart of high-temperature processing equipment, such as heat exchangers and furnace components in chemical plants. Its reliability is also crucial for fabricating pressure vessels and high-strength mechanical parts for the energy sector. Essentially, wherever projects require a material that can withstand intense heat and pressure without weakening, this hollow bar delivers the necessary performance and durability.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Tariku Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Addis Ababa, Ethiopia
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