Hemi Metals is a well-known supplier and manufacturer of Stainless Steel 446 Bars and Rods, proudly based in Hamilton, New Zealand. We specialize in providing high-temperature resistant materials tailored for various industrial applications. Stainless Steel 446 is a ferritic alloy designed to endure extreme oxidation and corrosion, even at elevated temperatures. At Hemi Metals, we offer precision-engineered bars and rods that boast excellent dimensional tolerance, durability, and consistent performance under thermal stress. These products are perfect for furnace components, power generation systems, and heat treatment industries that demand materials capable of maintaining their structural integrity. Our SS 446 bars promise a long service life, outstanding scaling resistance, and dependable operational performance.
Stainless Steel 446 Bars and Rods are primarily composed of high chromium content (up to 27%), along with iron, manganese, silicon, and trace elements that boost corrosion and oxidation resistance. This alloy showcases impressive tensile strength, good hardness, and remarkable scaling resistance at temperatures above 1100°C. It also has moderate ductility and magnetic properties across all conditions. The mechanical performance remains stable even in thermal cycling environments. Thanks to its low carbon content, SS 446 provides enhanced creep resistance and minimizes carbide precipitation, making it an excellent choice for high-temperature structural and industrial applications.
| Grade | Stainless Steel 446 (UNS S44600) |
|---|---|
| Specification | ASTM A276, ASTM A479, ASTM A182 |
| Round bar size | Diameter: 3-~800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Square bar size | 4 to 100mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Section | 3.0 to 12.0mm thickness |
| Channel Bar | 80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2″ to 495mm Diameter |
| Rectangles Size | 33 x 30mm to 295 x 1066mm |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Surface | Cold Drawn, Bright, Sand Blasting Finished, Hot Rolled Pickled, Hairline, Polished |
| Condition | Hardened & tempered, annealed |
| Technique | 446 Stainless Steel Cold Drawn, Hot Rolled, Forged Round Bar, Rod, Cold Rolled |
| Processing | Bar cutting to 650mm |
| Form | Precision Ground Bar, Flat Bar, Square, Round, Half Round Bar, Rod, Rectangle, Hex (A/F), T-Bar, Channel Bar,Blocks, Round Rod, Threaded, Profiles, Billet, Ingot, I/H Bar, Forging, Rings, Hollow, Triangle etc. |
| Our 446 Stainless Steel Round bar conforms to NACE MR0175/ISO 15156 | |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 446 | 0.2 max | 1.5 max | 0.75 max | 0.040 max | 0.03 max | 23 – 30 | 0.10 – 0.25 | 0.50 max | Balance |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.5 g/cm3 | 1510 °C (2750 °F) | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 446 | 1.4762 | S44600 | – | – | – | – | – |
Stainless Steel 446 Bars and Rods are known for their excellent resistance to oxidation, high temperatures, and corrosive environments. They also exhibit remarkable scaling resistance and durability, making them suitable for demanding industrial applications.
These bars and rods are widely used in industries such as petrochemical, chemical processing, power generation, and marine applications. They are also suitable for heat exchangers, boiler parts, furnace components, and high-temperature exhaust systems.
Yes, Stainless Steel 446 Bars and Rods offer exceptional resistance to high temperatures and oxidation, performing effectively in applications that involve prolonged exposure to elevated temperatures.
Stainless Steel 446 Bars and Rods find extensive use in industries that require materials with outstanding heat and corrosion resistance. They are commonly utilized in furnace conveyors, burner nozzles, heat exchangers, boiler components, kiln linings, and radiant tubes. This alloy is particularly well-suited for power plants, petrochemical refineries, metallurgical processing, thermal treatment equipment, and incinerators. With its high resistance to sulfur-bearing environments, SS 446 is also ideal for coal gasification and waste management applications.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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