Andre Stainless is a trusted producer and distributor of Stainless Steel 446 Fasteners in Pulau Ujong, Singapore, offering oxidation-resistant products for high-temperature applications. Grade 446 is a ferritic stainless steel used to resist scaling and corrosion at temperatures over 1000°C. Andre Stainless makes bolts, nuts, washers, screws, and studs out of 446, all of which are produced in accordance with ASTM and DIN specifications. These fasteners are extremely appropriate for furnaces, heat treatment equipment, and other thermal systems where regular fasteners would perish. They come in special sizes and finishes for industrial, chemical, and thermal engineering uses.
Stainless Steel 446 is a ferritic high-chromium alloy containing 23–27% chromium with little carbon. It offers superior oxidation, sulfidation, and thermal fatigue resistance. Mechanical properties are tensile strength of 485–640 MPa and yield strength of approximately 275 MPa. The alloy is stable at temperatures of up to 1100°C. 446 fasteners are ferromagnetic, cannot be heat-treated to harden, and are less ductile compared to austenitic grades. Nonetheless, they retain mechanical strength in severe, high-temperature conditions and provide moderate corrosion resistance, particularly in oxidizing and sulfur-rich environments.
| 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 % |
Contact us to get a quick quote for your requirement.
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 find applications in high-temperature service conditions like furnace linings, kiln components, incinerators, radiant tubes, and exhaust systems. They are especially found to be ideal for chemical plants and power stations where thermal cycling and oxidation resistance are important. In glass production and metallurgy, they are utilized to retain refractory pieces and structural elements. Their performance in gas, combustion products, and air at high temperatures provides reliability in thermal fatigue. Andre Stainless supplies these fasteners in metric and imperial sizes with or without surface treatments for added performance and protection.
©2024 Andre Stainless All Rights Reserved.
