Akor Stainless is a reputable manufacturer and supplier based in Abuja, Nigeria, known for its top-notch Stainless Steel 422 Nuts. These nuts are designed for exceptional strength, hardness, and impressive heat resistance. Perfect for high-temperature and high-stress environments, these martensitic stainless steel nuts are crafted with precision to ensure tight dimensional accuracy and a superior surface finish, meeting the rigorous standards of various industries. Whether in aerospace, power generation, or chemical sectors, Stainless Steel 422 Nuts provide reliable fastening performance, excelling in conditions where oxidation resistance, durability, and mechanical stability are crucial under thermal and mechanical loads.
Stainless Steel 422 Nuts are made up of 11–13% chromium, 1–1.5% molybdenum, and 0.2–0.35% carbon, with added tungsten and vanadium to boost hardness and creep strength. This martensitic alloy boasts a tensile strength ranging from 690–965 MPa, a yield strength of around 480 MPa, and can reach a hardness of up to 45 HRC after heat treatment. It offers excellent oxidation resistance up to 650°C and maintains impressive mechanical stability at high temperatures. SS 422 also provides good corrosion resistance in mild atmospheric and steam conditions, making it a great choice for high-stress fastening applications.
| 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.
Akor 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 primary use in high-temperature and high-stress settings, such as turbines, jet engines, power plants, and steam systems. They are perfect for fastening components in industries like aerospace, petrochemical, and thermal processing, where heat resistance and strength retention are vital. These nuts perform reliably in machinery that faces oxidation and scaling, including valves, rotors, and combustion components. With superior hardness and wear resistance, SS 422 is ideal for precision mechanical assemblies. Its well-balanced mechanical and thermal properties ensure a long service life and stability under continuous use.
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