Sahil Metals, a prominent manufacturer and supplier located in Riyadh, Saudi Arabia, is all about delivering top-notch metals and engineered solutions tailored for a variety of industrial needs. They boast an impressive lineup of products, including stainless steel, alloy steels, and specialty metals. One standout item in their collection is the Stainless Steel 321 Hollow Bar, crafted to adhere to rigorous industry standards. Sahil Metals is committed to ensuring exceptional material performance, prompt delivery, and personalized solutions for sectors like petrochemical, oil and gas, power generation, and heavy engineering, making them a trusted partner for industries that demand durable and high-performance stainless steel products.
The Stainless Steel 321 Hollow Bar is a titanium-stabilized austenitic stainless steel alloy, specifically designed to prevent chromium carbide precipitation, which gives it remarkable resistance to intergranular corrosion. Its makeup features chromium, nickel, and titanium, resulting in a blend of high strength, toughness, and thermal stability. This material showcases outstanding tensile and yield strength, good ductility, and impressive mechanical properties even at elevated temperatures, making it perfect for applications that require long-lasting performance under stress, heat, and corrosive conditions.
| 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 321 | 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 321 Hollow Bar offers excellent resistance to oxidation and corrosion at high temperatures, particularly in environments prone to scaling. Its stability in elevated temperatures and resistance to sensitization make it ideal for applications in heat exchangers and exhaust systems.
The addition of titanium in SS 321 stabilizes carbon, preventing the formation of chromium carbides at grain boundaries. This reduces the risk of intergranular corrosion, improving the alloy's resistance to corrosion in high-temperature environments and aggressive chemical conditions.
In aerospace, SS 321 Hollow Bar is used for exhaust systems, jet engine components, and fuel systems due to its high-temperature resistance. In the chemical industry, it's used for heat exchangers, reactors, and piping in corrosive environments.
You’ll find Stainless Steel 321 Hollow Bars commonly used in chemical processing equipment, furnace components, heat exchangers, and aerospace parts. Their ability to resist oxidation, scaling, and intergranular corrosion makes them ideal for high-temperature and demanding environments. They’re also utilized in shafts, mechanical parts, and structural components where durability, reliability, and a long service life are crucial. Industries such as petrochemical, power generation, and manufacturing rely on 321 hollow bars for applications that call for strength, performance, and consistency in tough conditions.






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Sahil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Riyadh, Saudi Arabia
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