Njabulo Stainless stands out as a top-notch manufacturer and supplier of Stainless Steel 436 Nuts, proudly based in Cape Town, South Africa. The company is all about crafting high-quality stainless steel fasteners that boast impressive corrosion resistance, strength, and durability. Their Stainless Steel 436 Nuts are specifically designed to thrive in tough and corrosive environments, making them perfect for use in chemical, petrochemical, marine, and industrial settings. With state-of-the-art manufacturing facilities and rigorous quality control measures, Njabulo Stainless guarantees that each nut meets international standards, delivering secure, reliable, and long-lasting fastening solutions for machinery, equipment, and structural assemblies.
These Stainless Steel 436 Nuts are primarily made up of iron, chromium (16–18%), nickel (11–13%), molybdenum (2–3%), along with trace amounts of manganese, silicon, and carbon (capped at 0.08%). This particular austenitic-ferritic stainless steel grade offers outstanding corrosion resistance in oxidizing and mildly aggressive environments, coupled with high tensile strength and good toughness. These nuts showcase a tensile strength of about 750–950 MPa, a yield strength of around 400–650 MPa, and impressive hardness, making them ideal for heavy-duty fastening tasks where both mechanical performance and corrosion resistance are essential.
| Property | 436 Data |
| Density, lb/in3 | 0.276 |
| Modulus of Elasticity, psi | 29.0 x 106 |
| Coefficient of Thermal Expansion, 68-212˚F, /˚F | 5.6 x 10-6 |
| Thermal Conductivity, Btu/ft hr ˚F | 13.0 |
| Specific Heat, Btu/lb ˚F | 0.11 |
| Electrical Resistivity, Microohm-in | 23.6 |
| Element | 436 |
| Carbon | 0.12 |
| Chromium | 16.0-18.0 |
| Molybdenum | 0.75-1.25 |
| Manganese | 1.00 |
| Silicon | 1.00 |
| Phosphorus | 0.040 |
| Sulfur | 0.030 |
| Property | 436 |
| Yield Strength, min. (ksi) | 40 |
| Tensile Strength, min. (ksi) | 65 |
| Elongation, min. (%) | 20 |
| Hardness, max. (Rb) | 90 |
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A corrosion-resistant product, Stainless Steel 436 nuts are available in sizes ranging from M6 to M64. They offer excellent resistance to corrosion and heat, making them suitable for automotive exhaust systems and chemical processing equipment.
A corrosion-resistant product, Stainless Steel 436 coupling nuts come in sizes from M6 to M36. They connect two male threads with robust performance in moderately corrosive and high-temperature environments, ideal for extended threaded connections.
A corrosion-resistant product, Stainless Steel 436 nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert prevents loosening due to vibration, providing secure fastening in automotive and industrial applications.
A corrosion-resistant product, Stainless Steel 436 flange hex nuts feature an integrated flange and are available in sizes from M5 to M20. They distribute the load over a larger area, enhancing stability and durability in corrosive and high-temperature environments.
A corrosion-resistant product, Stainless Steel 436 heavy hex nuts are available in sizes from M10 to M48. Their thicker and larger design offers increased strength and stability, suitable for heavy-duty applications and high-temperature environments.
A corrosion-resistant product, Stainless Steel 436 square nuts provide a larger contact surface and come in sizes from M6 to M30. They are ideal for use in heavy clamping applications and environments where stability and corrosion resistance are critical.
We provide complete transparency of our Stainless Steel 436 Nuts with high-quality assurance. All orders are provided with the required documents like a commercial invoice, packing list, fumigation certificate, heat treatment chart, and NABL-approved lab test report. We provide Material Test Certificates per EN 10204/3.1b, PMI Test Certificates, 100% radiography test reports, and Third-Party Inspection Certificates. Our documentations are very comprehensive, well-arranged to provide maximum client satisfaction.
Stainless Steel 436 Nuts find their way into various industries that demand high-strength, corrosion-resistant fasteners. They’re perfect for chemical and petrochemical plants, marine equipment, industrial machinery, and structural assemblies that face harsh conditions. Plus, they’re commonly used in piping systems, pressure vessels, and high-load equipment where secure and durable fastening is a must. The blend of mechanical strength, corrosion resistance, and reliability makes 436 nuts a go-to choice for challenging industrial, chemical, and marine applications.
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