Stainless Steel 422 Nuts are robust fastening components designed for situations that demand exceptional toughness, wear resistance, and stability even at high temperatures. As a martensitic stainless steel grade, 422 outperforms standard stainless steels in high-temperature scenarios, making these nuts perfect for industries like aerospace, power generation, and other high-stress environments. Their dependable mechanical properties ensure that they hold securely, even when faced with heavy loads and temperature changes.
These nuts are made from a blend of iron, chromium, nickel, molybdenum, and carbon, which together create a strong mix of corrosion resistance and mechanical strength. The chromium content boosts their ability to resist oxidation and corrosion, while molybdenum enhances their hardness and stability at high temperatures. Thanks to their martensitic structure, they offer impressive tensile strength, creep resistance, and fatigue performance, making them a great choice for applications that experience extreme heat and stress.
| 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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A corrosion-resistant product, Stainless Steel 422 nuts come in sizes from M6 to M64. Known for high strength and wear resistance, they are suitable for aerospace and automotive applications requiring durability under high stress.
A corrosion-resistant product, Stainless Steel 422 coupling nuts, used to connect two male threads, are available in sizes from M6 to M36. Their high strength and heat resistance make them ideal for heavy-duty industrial applications.
A corrosion-resistant product, Stainless Steel 422 nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert prevents loosening due to vibration, making them ideal for high-stress applications.
A corrosion-resistant product, Stainless Steel 422 flange hex nuts feature an integrated flange and come in sizes from M5 to M20. They provide load distribution and stability, suitable for high-stress and high-temperature environments.
A corrosion-resistant product, Stainless Steel 422 heavy hex nuts are available in sizes from M10 to M48. Their thicker design offers increased strength and durability, ideal for heavy-duty and high-stress applications.
A corrosion-resistant product, Stainless Steel 422 square nuts provide a larger contact surface and come in sizes from M6 to M30. They are suitable for high-stress and heavy clamping applications where stability is crucial.
Amer Stainless ensures high-quality material with rigorous testing, such as hardness, spectro analysis, PMI, tensile, micro and macro structural, pitting resistance, and IGC testing. We assure superior performance through these checks. In addition to our quality commitment, we provide the following essential documentation: commercial invoices, packaging lists with weights, box numbers, labels, and a Certificate of Origin legalized by the Chamber of Commerce or Embassy. Our Third-Party Inspection Certificate ensures full customer satisfaction with the price and delivery of Stainless Steel 422 Nuts.
Stainless Steel 422 Nuts find their place in gas turbines, steam turbines, aerospace components, high-temperature machinery, and power plant equipment. Their capacity to maintain strength and resist scaling under high temperatures makes them ideal for securing critical components that are subjected to intense heat, pressure, and mechanical loads. With their outstanding thermal stability, durability, and resistance to corrosion, Stainless Steel 422 Nuts deliver reliable performance in challenging industrial and engineering settings.







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