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Lina Fasteners, based in Tunis, Tunisia, is a dependable manufacturer and supplier of high-strength Stainless Steel 422 Nuts designed for demanding industrial applications. With advanced manufacturing practices and strict quality control systems, the company produces nuts that deliver excellent mechanical strength, heat resistance, and long-term reliability. Stainless Steel 422 Nuts from Lina Fasteners are heat treated to achieve superior performance while maintaining resistance to oxidation. By meeting international standards and precise customer requirements, Lina Fasteners supports power generation, aerospace, petrochemical, and heavy industrial sectors with durable fastening solutions.
Stainless Steel 422 Nuts are made from a martensitic stainless steel alloy containing around 12% chromium, along with small additions of nickel, molybdenum, and vanadium. This composition allows the material to be heat treated for high tensile and yield strength. Mechanically, 422 Nuts provide excellent hardness, good fatigue resistance, and strong creep resistance at elevated temperatures. They also offer moderate corrosion and oxidation resistance, making them suitable for high-stress and high-temperature service conditions.
| 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 % |
| Material | Specification | Standards | Length | Size |
| 422 Stainless Steel Fasteners | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | 3 mm to 200 mm | M 02 to M 160 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 422 Nuts are widely used in industries that require high strength and resistance to heat and stress. They are commonly applied in gas and steam turbines, aerospace components, and power generation equipment operating at elevated temperatures. In petrochemical and oil and gas facilities, these nuts are used in high-pressure systems, compressors, and mechanical assemblies. Stainless Steel 422 Nuts are also suitable for heavy industrial machinery, structural applications, and equipment where long-term reliability, thermal stability, and mechanical strength are essential.
We ensure comprehensive documentation for our Stainless Steel 422 Nuts, including a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved lab test report. Our extensive testing certificates for Stainless Steel 422 Nuts include MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. Additionally, we provide secure and robust packaging to safeguard the nuts during transit. These meticulous efforts are undertaken to guarantee 100% client satisfaction and ensure the quality and compliance of our Stainless Steel 422 Nuts.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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