Aiman Metals, located in Kuala Lumpur, Malaysia, has built a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel products, including the Stainless Steel 321H Hollow Bar. With years of experience under their belt and a strong dedication to quality, Aiman Metals caters to a diverse array of industrial sectors both in Malaysia and beyond. They are well-regarded for delivering superior materials that comply with international standards. Their Stainless Steel 321H Hollow Bars are particularly popular due to their remarkable resistance to high temperatures and corrosion, making Aiman Metals a dependable partner for all your stainless steel needs.
Stainless Steel 321H Hollow Bar is essentially a high-carbon variant of 321 stainless steel, enhanced with titanium to boost its resistance to intergranular corrosion. The typical chemical makeup features Chromium (17–19%), Nickel (9–12%), and Carbon (up to 0.10%), along with trace elements of Manganese, Silicon, Phosphorus, and Sulfur. On the mechanical side, it boasts a tensile strength of about 515 MPa and a yield strength of 205 MPa, along with impressive creep resistance. This alloy retains its mechanical strength even at high temperatures, making it perfect for high-pressure and high-temperature applications in tough 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 |
Stainless Steel 321H Hollow Bars find extensive use in industries that require both strength and heat resistance. You’ll often see them in heat exchangers, chemical processing equipment, furnace components, jet engine parts, and exhaust manifolds. Thanks to its ability to resist oxidation and maintain structural integrity in extreme temperatures, this alloy is a go-to choice for the petrochemical, aerospace, and power generation industries. It’s also utilized in refineries and marine settings where corrosion resistance is vital. Plus, its formability and weldability make it easy to work with, making the 321H Hollow Bar a versatile option for various industrial and structural applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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