Mitchell Stainless is a well-respected manufacturer and supplier of high-performance Stainless Steel 446 Fasteners based in Hamilton, New Zealand. They specialize in providing reliable fastening solutions tailored for tough industrial settings. With a strong commitment to quality, durability, and precision engineering, the company offers a wide array of fasteners that can handle extreme temperatures and corrosive environments. Their state-of-the-art manufacturing processes and rigorous quality control ensure that their products meet global standards and satisfy customer needs. Serving sectors like petrochemical, power generation, and furnace equipment manufacturing, Mitchell Stainless remains a go-to partner for durable and dependable Stainless Steel 446 Fasteners in New Zealand.
Stainless Steel 446 fasteners are primarily made up of a high chromium content (23–27%), along with trace amounts of molybdenum, manganese, silicon, and carbon, which together provide outstanding oxidation and corrosion resistance. This ferritic stainless steel excels in high-temperature performance, maintaining its structural integrity even at temperatures exceeding 1100°C. The alloy demonstrates good creep strength, moderate tensile strength, and excellent scaling resistance in challenging environments. Although it can’t be heat-treated for hardening, SS 446 fasteners offer reliable mechanical properties and dimensional stability, making them perfect for thermal processing and high-temperature applications.
| Standard | ASTM A193,A194 / ASME SA193,SA194 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS 446 | 2.0 max | 1.5 max | 0.75 max | 0.040 max | 0.030 max | 23.00 – 30.00 | – | 0.50 max | 0.10 – 0.25 |
| 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 % |
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Stainless Steel 446 Nuts offer excellent corrosion resistance, particularly in high-temperature environments. Available in sizes ranging from M3 to M48, they provide robust mechanical strength and are ideal for high-temperature applications.
Stainless Steel 446 Stud Bolts are highly resistant to oxidation and corrosion. Typically available in lengths from 25mm to 1000mm and diameters from M6 to M30, they are used for high-temperature and corrosive environments.
Stainless Steel 446 Bolts provide superior corrosion resistance and high-temperature stability. Sizes range from M5 to M36, with various lengths available. They are suitable for use in severe environments where oxidation is a concern.
Stainless Steel 446 threaded rods exhibit excellent resistance to corrosion and high temperatures. Commonly available in lengths up to 3000mm and diameters from M6 to M36, they are used in demanding industrial applications.
Stainless Steel 446 screws are known for their resistance to high temperatures and corrosion. Available in sizes ranging from M2 to M12, they are used in applications requiring high strength and durability under harsh conditions.
Stainless Steel 446 washers offer outstanding corrosion resistance and durability. They come in various sizes, typically from M3 to M50, and are used to distribute loads and prevent surface damage in high-temperature applications.
Our Stainless Steel 446 Fasteners are subjected to extensive testing, such as 100% radiographic examination, strength testing, macro/micro examination, raw material acceptance checking, third-party verification, combined-mode intergranular corrosion testing, chemical analysis, and PMI examination. These all-encompassing tests guarantee excellent robustness, performance and compliance with the same‐industry standards, making sure that our fasteners comply to the strict needs of high‐temperature and corrosion‐resistant applications.
Stainless Steel 446 fasteners are extensively used in industries that demand exceptional high-temperature strength and corrosion resistance. They’re commonly found in furnace components, heat exchangers, petrochemical processing units, and thermal power plants, where they frequently encounter extreme heat and oxidizing conditions. Their remarkable resistance to sulphidation and scaling makes them ideal for kiln linings, burners, incinerators, and exhaust systems. Moreover, SS 446 fasteners are crucial in ensuring the reliability and safety of various applications, making them a preferred choice in demanding industrial environments.
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