Home > Stainless Steel 446 Washers
Stainless Steel 446 Washers are top-notch fastening components crafted from ferritic stainless steel, designed to provide remarkable strength, stability, and resistance to corrosion, even in extreme temperatures. These washers are tailored for applications that demand reliable load distribution, vibration resistance, and secure fastening in tough operating conditions. With their impressive ability to resist oxidation and scaling at temperatures exceeding 1100°C, they are perfect for thermal processing and high-heat industrial systems. Their durability, precise dimensions, and long lifespan guarantee dependable performance in environments exposed to harsh chemicals, combustion gases, and fluctuating temperature cycles.
These washers are primarily made up of 23–27% chromium, along with trace amounts of carbon, manganese, sulfur, silicon, and nickel. The high chromium content significantly boosts their resistance to oxidation, corrosion, and scaling at high temperatures. They boast strong mechanical properties, featuring a tensile strength of around 485 MPa and a yield strength of about 275 MPa, along with excellent creep resistance. They maintain their structural integrity even under heavy mechanical stress and prolonged heat exposure, ensuring consistent fastening performance without deformation or thermal fatigue.
SS 446 Washer Specifications | ||
| Specifications | : | ASTM A193 ASME SA193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | M02 to M33 |
| Size | : | 3 mm to 200 mm |
| Type | : | Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring |
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | N | |
| 446 | min. | – | – | – | – | – | 23.0 | – | – | 0.10 |
| max. | 0.20 | 1.5 | 0.75 | 0.040 | 0.030 | 30.0 | 0.50 | 0.25 | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 446 | 485 | 275 | 20 | 92 | 201 |
Stainless Steel 446 Washers find their place in high-temperature and corrosive industrial settings, such as furnaces, boilers, kilns, heat exchangers, annealing equipment, and thermal processing plants. They’re also commonly used in petrochemical refineries, power generation units, exhaust systems, incinerators, and chemical processing facilities. Their ability to endure extreme thermal cycling and corrosive gases makes them ideal for gas turbines, refractory systems, industrial burners, and high-temperature piping connections. SS 446 Washers provide reliable and long-lasting fastening support, ensuring safety and operational efficiency in demanding environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
