Neith Metals, based in Cairo, Egypt, stands out as a leading manufacturer and supplier of top-notch Stainless Steel 321H Hollow Bars. Known for their precision engineering and cutting-edge manufacturing techniques, they strictly follow international quality standards to deliver stainless steel products that boast remarkable high-temperature strength, corrosion resistance, and durability. These Stainless Steel 321H Hollow Bars are crafted from high-carbon, titanium-stabilized austenitic stainless steels, specifically designed to retain mechanical strength and prevent carbide precipitation even when exposed to high temperatures for extended periods. Neith Metals caters to various industries, including chemical processing, aerospace, power generation, and automotive, providing dependable, versatile, and high-performance stainless steel solutions for critical applications.
The composition of Stainless Steel 321H Hollow Bars includes chromium (17–19%), nickel (9–12%), titanium (≥0.7%), and carbon (0.04–0.08%), along with trace amounts of manganese, silicon, phosphorus, and sulfur. This alloy showcases impressive tensile strength of up to 550 MPa, yield strength around 215 MPa, and an elongation of about 40%. With excellent oxidation resistance, high-temperature creep resistance, and outstanding mechanical stability, Stainless Steel 321H is perfect for welded and heat-treated components in demanding or high-heat environments.
| 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.
Neith Metals’ Stainless Steel 321H Hollow Bars find extensive use in applications that require both high-temperature strength and corrosion resistance. They are particularly well-suited for manufacturing heat exchangers, boiler tubes, furnace components, chemical processing equipment, and exhaust systems. Additionally, these bars are utilized in aerospace, petrochemical, and power generation machinery, where dimensional stability, long-lasting durability, and resistance to thermal fatigue are crucial. The hollow design not only enhances weight efficiency but also simplifies fabrication. Overall, Stainless Steel 321H Hollow Bars provide reliable, high-performance solutions for industrial, chemical, and engineering needs.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neith Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Alexandria, Egypt
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