Khaleed Stainless stands out as a top manufacturer and supplier of premium stainless steel fasteners, proudly based in Riyadh, Saudi Arabia. Renowned for its dedication to precision engineering, exceptional quality, and prompt delivery, the company offers a diverse range of products. Among these, the Stainless Steel 348 Nuts shine, specifically designed for high-temperature and corrosive settings. These nuts ensure reliable performance across various industries, including chemical processing, aerospace, power generation, and marine applications. With cutting-edge manufacturing capabilities and rigorous quality control, Khaleed Stainless consistently provides trustworthy fastening solutions to clients throughout Saudi Arabia and the Middle East.
Stainless Steel 348 Nuts are crafted from an austenitic stainless steel alloy that includes iron, 17–19% chromium, 9–13% nickel, and is stabilized with columbium (niobium) and tantalum. These stabilizers significantly boost resistance to intergranular corrosion, particularly after welding. The nuts boast impressive mechanical properties, featuring a tensile strength of approximately 550–750 MPa and a yield strength ranging from 240–450 MPa. They maintain their strength even at elevated temperatures and offer good creep resistance. In their annealed state, they are non-magnetic, exhibit excellent weldability, and are perfect for high-temperature and high-stress applications.
| Element | Content (%) |
|---|---|
| Iron, Fe | 66 |
| Chromium, Cr | 18 |
| Nickel, Ni | 10 |
| Manganese, Mn | 2.0 |
| Silicon, Si | 1.0 |
| Nb + Ta | 0.8 |
| Cobalt, Co | 0.2 |
| Tantalum, Ta | 0.1 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Yield strength (@ strain 0.200%) | 275 MPa | 39900 psi |
| Izod impact | 120 – 160 J | 88.5 – 118 ft-lb |
| Charpy impact | 160 J | 118 ft-lb |
| Shear modulus (typical for steel) | 77.0 GPa | 11200 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 45% | 45% |
| Hardness, Brinell (converted from Rockwell B hardness) | 147 | 147 |
| Hardness, Knoop (converted from Rockwell B hardness) | 164 | 164 |
| Hardness, Rockwell B | 85 | 85 |
| Hardness, Vickers (converted from Rockwell B hardness) | 169 | 169 |
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Stainless steel 348 nuts are ideal for high temperature applications. Available in sizes from M6 to M36, these nuts are highly resistant to corrosion and oxidation, making them suitable for nuclear reactors and chemical devices.
The stainless steel 348 coupling nuts are designed to connect threaded rods in harsh environments. Sizes range from M6 to M36, making them ideal for applications in hot and humid environments, such as medical plants and power plants
Stainless steel 348 nylon insert nuts have nylon inserts for secure fastening. Available in sizes from M6 to M24, they offer high thermal stability and resistance, suitable for use in aerospace and industrial equipment.
Stainless steel 348 flange hex nuts for enhanced weight distribution with integrated flanges. Available in sizes from M6 to M24, these panels are used in complex applications such as furnace components and heat exchangers, providing strong support.
Heavy duty stainless steel 348 hex nuts are designed for high stress and high temperature environments. Available in sizes from M6 to M36, they are ideal for use in industrial equipment and nuclear reactors, providing exceptional strength and durability.
Stainless steel 348 square nuts provide large surface area for efficient torque application. Sizes range from M6 to M24, making it suitable for secure communications in hot environments, such as chemical applications and space applications.
Khaleed Stainless delivers quality Stainless Steel 348 Nuts with consistent performance, as tested under wide-ranging tests like hardness tests, spectro analysis, PMI, and flaring tests. In addition, micro and macro tests, pitting resistance, and IGC tests confirm that the nuts are of superior quality that we deliver. We ensure complete documentation, such as commercial invoices, packing lists showing net and gross weights, box numbers, and labels besides our testing protocols. Our legalized or attested Certificate of Origin along with Third-Party Inspection Certificates ensures our uncompromising commitment to delivering exceptional products and unparalleled customer satisfaction.
Stainless Steel 348 Nuts find their place in high-temperature, high-stress environments where corrosion resistance and structural integrity are paramount. They are commonly used in chemical processing equipment, exhaust manifolds, heat exchangers, nuclear reactor components, and aerospace assemblies. Their outstanding resistance to intergranular corrosion makes them particularly suitable for welded structures and for continuous exposure to elevated temperatures. Additionally, these nuts are well-suited for marine environments, ensuring durability and reliability in challenging conditions
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