Hemi Metals is a reliable supplier and manufacturer of Stainless Steel 446 Flat Bars based in Hamilton, New Zealand. We pride ourselves on providing top-notch materials designed to withstand harsh high-temperature and corrosive environments. Stainless Steel 446 is a ferritic alloy celebrated for its high chromium content, which gives it outstanding resistance to oxidation and scaling, even in extreme heat. Our SS 446 Flat Bars are crafted with precision, ensuring they have the right dimensions, a great finish, and robust mechanical integrity, making them perfect for critical thermal applications. At Hemi Metals, we guarantee products that deliver long-lasting performance, strength retention at high temperatures, and durability in industrial settings where other stainless-steel grades might fall short.
Stainless Steel 446 Flat Bars boast a high chromium content (up to 27%) along with iron, silicon, manganese, and trace alloying elements that enhance their resistance to high-temperature corrosion. This alloy shows remarkable scaling resistance at temperatures above 1100°C, along with strong tensile properties and improved creep resistance. It maintains its structural integrity even when exposed to heat and sulfur-rich environments for extended periods. SS 446 has magnetic properties, low carbon content, moderate hardness, and stable mechanical strength during thermal cycling. Its low carbide precipitation minimizes deformation and boosts long-term durability in extreme conditions.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 446 | 0.2 | 23.00 | 1.5 | 0.50 | 0.040 | 0.030 | 0.75 |
| Element | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell (HB) max) |
| SS 446 | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % | – |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 446 | 1.4762 | S44600 |
Stainless Steel 446 Flat Bar is primarily used in high-temperature and highly corrosive environments, such as industrial furnaces, heat exchangers, thermal oxidizers, and marine applications, due to its exceptional resistance to oxidation, scaling, and chloride stress corrosion.
Stainless Steel 446 Flat Bar contains approximately 23-27% chromium, 0.2% carbon, up to 1.5% manganese, 1.0% silicon, 0.04% sulfur, and trace amounts of nickel, phosphorus, and molybdenum, offering excellent oxidation and corrosion resistance in extreme environments.
Yes, Stainless Steel 446 Flat Bar is highly suitable for high-temperature applications due to its excellent oxidation resistance and ability to withstand temperatures up to 1100°C (2012°F), making it ideal for furnace components, heat exchangers, and thermal oxidizers.
Stainless Steel 446 Flat Bars find extensive use in industries that need components with outstanding high-temperature and oxidation resistance. They are perfect for applications like furnace rails, kiln linings, burner parts, stack dampers, heat exchanger supports, boiler components, and hardware for power plants. This alloy excels in environments such as petrochemical, cement, metallurgy, thermal processing, and waste incineration. Thanks to its resistance to sulfur-bearing atmospheres, SS 446 is also well-suited for coal gasification units and combustion systems.
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
Copyright 2024 Hemi Metals. All rights reserved
