Harsh Metalloys is a trusted manufacturer and supplier of high-performance SS 384 Nuts, based in Mumbai, India. We specialize in offering stainless steel fasteners made from premium-grade materials, including SS 384—a non-magnetic, austenitic stainless steel known for its excellent corrosion resistance and enhanced high-temperature strength. Our SS 384 nuts are designed for demanding applications in harsh environments, including chemical processing, marine, and thermal systems. With precise engineering, consistent quality control, and competitive pricing, Harsh Metalloys supplies these durable fasteners to clients across India and international markets, delivering products that ensure safety, reliability, and long-term performance.
SS 384 Nuts are made from an austenitic stainless steel alloy with high nickel (approx. 28–30%) and chromium (18–20%) content. The alloy may also include small amounts of molybdenum and copper for improved corrosion resistance and strength. SS 384 offers excellent mechanical properties, including tensile strength of around 550–700 MPa and yield strength above 200 MPa. It maintains good ductility, non-magnetic behavior, and superior performance at elevated temperatures. These properties make SS 384 nuts suitable for use in highly corrosive environments and thermal applications requiring strong and stable fastening solutions.
| Element | Content (%) |
|---|---|
| Iron, Fe | 63 |
| Nickel, Ni | 18 |
| Chromium, Cr | 16 |
| Manganese, Mn | 2.0 |
| Silicon, Si | 1.0 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 515 MPa | 74700 psi |
| Yield strength (@strain 0.200%) | 240 MPa | 34800 psi |
| Elastic modulus | 193 GPa | 28000 ks |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 55.00% | 55.00% |
| Hardness, Brinell (converted from Rockwell B hardness) | 123 | 123 |
| Hardness, Knoop (converted from Rockwell B hardness) | 138 | 138 |
| Hardness, Rockwell B | 70 | 70 |
| Hardness, Vickers (converted from Rockwell B hardness) | 129 | 129 |
Contact us to get a quick quote for your requirement.
Corrosion-resistant product designed for high-temperature applications. Stainless Steel 384 Nuts are available in sizes from M6 to M36, ideal for furnace components and heat exchangers, providing excellent heat and oxidation resistance.
Stainless Steel 384 Coupling Nuts are used to join threaded rods in extreme conditions. Sizes range from M6 to M36, making them suitable for high-temperature environments such as furnace parts and industrial kilns.
Stainless Steel 384 Nylon Insert Nuts feature a nylon insert for secure fastening in high-temperature settings. Available in sizes from M6 to M24, they are ideal for applications like heat exchangers where stability and heat resistance are crucial.
Stainless Steel 384 Flange Hex Nuts offer enhanced load distribution with integrated flanges. Sizes range from M6 to M24, suitable for high-temperature applications like furnace components and heat exchangers, providing both strength and resistance.
Stainless Steel 384 Heavy Hex Nuts are designed for high-stress, high-temperature environments. Available in sizes from M6 to M36, they are used in industrial machinery and furnace parts, ensuring exceptional strength and thermal stability.
Stainless Steel 384 Square Nuts provide a large surface area for effective torque application. Sizes range from M6 to M24, ideal for high-temperature environments such as heat exchangers and furnace components, ensuring durability and stability.
We are providing full transparency with our Stainless Steel 384 Nuts under high-quality assurance. All the orders are supported with necessary documents, for example, commercial invoice, packing list, fumigation certificate, heat treatment chart, and a NABL-approved lab test report. Also, we furnish a Material Test Certificate under EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third-Party Inspection Certificate. Our documentation is carefully prepared for maximum client satisfaction.
SS 384 Nuts from Harsh Metalloys are ideal for use in industries that demand superior corrosion resistance and high-temperature performance. Common applications include marine hardware, chemical processing equipment, heat exchangers, and pressure vessels. They are also used in thermal power plants, food processing systems, and pharmaceutical machinery where hygiene, durability, and resistance to oxidation are critical. Their non-magnetic nature makes them suitable for specialized applications such as electronic enclosures and sensitive instrumentation. SS 384 nuts are designed to withstand extreme environments while maintaining secure and long-lasting fastening, making them a preferred choice in high-specification industrial applications.







©2024 Harsh Metalloys All Rights Reserved.