Mbemba Stainless is a trusted manufacturer and supplier of **Stainless Steel 422 Nuts** based in Kinshasa, Congo. They offer top-notch fastening solutions that are built for strength, durability, and performance. Made from high-quality 422 stainless steel, these nuts boast impressive resistance to heat, oxidation, and corrosion. Mbemba Stainless is committed to ensuring that every product meets global quality standards through cutting-edge manufacturing techniques and rigorous quality control. Their products are widely utilized in various industries, including power generation, petrochemical, marine, and aerospace, providing robust fastening solutions that promise long-lasting and reliable service, even in high-temperature and high-stress industrial settings.
**Stainless Steel 422 Nuts** primarily consist of chromium (11–13%), molybdenum, tungsten, nickel, and carbon (0.20–0.25%). This martensitic stainless steel alloy is known for its excellent high-temperature strength, wear resistance, and moderate corrosion resistance. These nuts have a tensile strength ranging from 700 to 900 MPa and a yield strength of about 450 MPa. With remarkable hardness and oxidation resistance, they maintain their mechanical stability at temperatures up to 650°C. Their ability to hold up under stress makes them perfect for applications that demand heat resistance, durability, and structural integrity.
| 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.
Mbemba 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.
You’ll find **Stainless Steel 422 Nuts** commonly used in **turbines, boilers, pumps, valves, power plants, and the petrochemical industry**, where high strength and thermal resistance are crucial. These nuts are particularly suited for components that face high temperatures, like steam and gas turbines, thanks to their resistance to oxidation and creep. They’re also used in aerospace and marine applications, providing reliable fastening in challenging environments. With their outstanding mechanical and wear properties, they are ideal for heavy-duty machinery and structural assemblies that require both corrosion resistance and long-term performance under thermal stress.
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