Harsh Metalloys is a leading manufacturer and supplier of Stainless Steel 422 Nuts based in Mumbai, India, offering high-strength fasteners for critical applications in thermal, mechanical, and industrial systems. Stainless Steel 422 is a martensitic stainless steel alloy known for its outstanding heat resistance, high strength, and excellent creep and oxidation resistance at elevated temperatures. These nuts are engineered to withstand extreme environments and are commonly used in turbine engines, aerospace components, and power generation systems. Harsh Metalloys ensures each SS 422 nut meets strict quality standards, offering durability, dimensional accuracy, and reliable performance in demanding applications.
Stainless Steel 422 Nuts are composed of chromium (11–13%), molybdenum, tungsten, and vanadium, with carbon content optimized for high-temperature strength. The alloy offers a tensile strength of approximately 655–860 MPa and excellent creep resistance up to 1200°F (650°C). These nuts exhibit good corrosion resistance in mildly corrosive environments and can be hardened through heat treatment. Harsh Metalloys ensures uniform threading, superior mechanical integrity, and precision tolerances in every nut, making them suitable for heavy-duty fastening in high-stress thermal 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.
Harsh Metalloys 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 are composed of chromium (11–13%), molybdenum, tungsten, and vanadium, with carbon content optimized for high-temperature strength. The alloy offers a tensile strength of approximately 655–860 MPa and excellent creep resistance up to 1200°F (650°C). These nuts exhibit good corrosion resistance in mildly corrosive environments and can be hardened through heat treatment. Harsh Metalloys ensures uniform threading, superior mechanical integrity, and precision tolerances in every nut, making them suitable for heavy-duty fastening in high-stress thermal applications.
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