Mourad Metals stands out as a trusted manufacturer and supplier of Stainless Steel 321 Hollow Bars, based in Tunis, Tunisia. They cater to a diverse array of industrial needs. Crafted from top-notch raw materials and utilizing cutting-edge manufacturing techniques, these hollow bars boast impressive resistance to intergranular corrosion, especially in high-temperature settings. Mourad Metals adheres to rigorous quality control measures to guarantee exceptional strength, precise dimensions, and a flawless surface finish. With a robust supply chain and a customer-centric approach, the company provides Stainless Steel 321 Hollow Bars that align with international standards and consistently perform well in challenging applications across global markets.
Stainless Steel 321 Hollow Bar is an austenitic stainless steel alloy that’s stabilized with titanium, which helps prevent carbide precipitation during welding and extended exposure to high temperatures. Its chemical makeup features chromium for corrosion resistance, nickel for toughness and ductility, and titanium for enhanced thermal stability. On the mechanical side, SS 321 offers solid tensile and yield strength, remarkable toughness, and dependable creep resistance at elevated temperatures. It maintains its structural integrity under thermal stress and provides good formability and weldability for various fabrication needs.
| 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 |
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.
These Stainless Steel 321 Hollow Bars find extensive use in industries that demand strength and corrosion resistance at high temperatures. Common applications include heat exchangers, furnace components, exhaust systems, and chemical processing equipment. They are also widely employed in sectors like power generation, oil and gas, petrochemical, and aerospace due to their resistance to oxidation and thermal fatigue. Furthermore, these hollow bars are ideal for pressure vessels, piping systems, and structural components where durability, reliability, and a long service life are essential.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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