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Stainless Steel 422 Bolts are tough, high-strength fasteners made from hardenable stainless steel, perfect for situations where you need top-notch wear resistance, great corrosion protection, and the ability to handle high temperatures. These bolts shine in environments that demand both toughness and durability. With their impressive mechanical stability, Stainless Steel 422 Bolts perform exceptionally well in both thermal and chemically aggressive settings, making them reliable choices in challenging industries. Thanks to their high hardenability, they hold up well under heavy loads, and their chromium-rich makeup boosts their resistance to oxidation.
These bolts are crafted from a mix of iron, chromium (12–14%), molybdenum, tungsten, nickel, and carbon. This well-balanced composition enhances their hardenability, high-temperature strength, and corrosion resistance. On the mechanical side, they boast high tensile and yield strength, excellent wear resistance, and they can maintain their hardness even at temperatures reaching 1200°F (650°C). Their martensitic microstructure adds to their toughness and dimensional stability, making them ideal for environments where heat resistance and mechanical reliability are crucial.
| Component | Wt. % |
| C | 0.23 |
| Cr | 12.5 |
| Fe | 83 |
| Mn | 0.5 |
| Mo | 1 |
| Ni | 0.8 |
| P | 0.02 |
| S | 0.015 |
| Si | 0.38 |
| V | 0.23 |
| W | 1 |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Brinell | 290 | 290 | Estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball |
| Hardness, Knoop | 315 | 315 | Estimated from Rockwell C value. |
| Hardness, Rockwell C | 30 | 30 | |
| Hardness, Vickers | 304 | 304 | Estimated from Rockwell C value. |
| Tensile Strength, Ultimate | 897 MPa | 130000 psi | |
| Tensile Strength, Yield | 828 MPa | 120000 psi | 0.2% Offset |
| Elongation at Break | 15 % | 15 % | |
| Reduction of Area | 40 % | 40 % |
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Stainless steel 422 bolts have important applications in critical applications requiring high strength and high resistance. It is widely used in the atmosphere for severe conditions including turbine blades and aircraft engine components. In electricity generation, these lines reinforce critical turbine and hydraulic systems, ensuring reliability under extreme temperatures and pressures. Industrial construction industries rely on stainless steel 422 bolts to secure heavy machinery and equipment that operate in high-stress environments. Their durability and corrosion resistance make them essential in applications where safety, reliability and performance are paramount.
Industries that require robust, heat-resistant fastening solutions often turn to Stainless Steel 422 Bolts. You’ll find them in gas turbines, aerospace components, steam generators, petrochemical equipment, and power plants, all of which frequently deal with high temperatures. Their durability makes them perfect for high-pressure machinery, engine parts, and industrial furnaces. In chemical processing settings, these bolts deliver reliable performance thanks to their resistance to oxidation and corrosion. With their blend of strength, thermal stability, and wear resistance, they are a top choice for demanding applications.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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