Starc Metals, located in Canberra, Australia, stands out as a top-notch manufacturer and supplier of premium stainless steel products, with a particular focus on Stainless Steel 321H Hollow Bars. Known for their remarkable corrosion resistance, impressive high-temperature strength, and overall durability, Starc Metals guarantees that each product adheres to strict industry standards. The company caters to various sectors, including chemical processing, aerospace, power generation, and industrial engineering, offering timely deliveries, competitive pricing, and exceptional quality. By employing cutting-edge production methods and thorough quality control, Starc Metals provides stainless steel solutions that ensure long-lasting reliability, strength, and precision, making their Stainless Steel 321H Hollow Bars a go-to choice for demanding commercial and industrial applications throughout Australia.
Stainless Steel 321H Hollow Bars are an austenitic stainless steel grade that’s stabilized with titanium to prevent intergranular corrosion and boost high-temperature performance. Typically, their composition features 17–19% chromium, 9–12% nickel, 0.04–0.10% carbon, along with trace amounts of manganese, silicon, and titanium. These hollow bars are known for their excellent tensile strength, high-temperature stability, and good weldability. In terms of mechanics, they boast a tensile strength ranging from 515 to 750 MPa, a yield strength of about 205 to 275 MPa, and a hardness of approximately 170 to 200 HB. Their unique blend of durability, corrosion resistance, and thermal stability makes them perfect for various industrial and engineering 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 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 situations that demand high-temperature resistance, corrosion protection, and structural integrity. They are commonly utilized in the manufacturing of heat exchangers, furnace components, chemical processing equipment, aerospace parts, and industrial machinery that operates under elevated temperatures. Their ability to resist intergranular corrosion, combined with excellent mechanical properties, makes them ideal for power plants, petrochemical industries, and high-temperature piping systems.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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