Weston Stainless, Midland, UK, is a reputable source of premium stainless steel products, including Stainless Steel 348 Nuts. The nuts are produced from grade 348 stainless steel, which is an austenitic alloy like 347 with the inclusion of tantalum and columbium for added intergranular corrosion resistance. Coming in several forms including hex nuts, lock nuts, flange nuts, and coupling nuts, SS 348 Nuts meet international specifications such as ASTM A194 and ASME SA194. Being very strong at high temperatures, oxidation resistant, and long lasting, they suit rigorous industrial applications.
Stainless Steel 348 Nuts are made up of 17-20% chromium, 9-13% nickel, and columbium/tantalum stabilization, which offers great carbide precipitation resistance. They possess a tensile strength of 515 MPa, yield strength of 205 MPa, and an elongation of 40%, providing mechanical reliability under critical stress levels. Their density is 7.9 g/cm³, and their melting point is approximately 1400°C, rendering them appropriate for high-temperature use.
| 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 |
Contact us to get a quick quote for your requirement.
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.
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
Available in sizes from M6 to M24, they offer high thermal stability and resistance, suitable for use in aerospace and industrial equipment.
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.
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.
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.
These SS 348 Nuts are applied in aerospace, chemical processing, power plants, nuclear reactors, and exhaust systems because of their high-temperature stability and corrosion resistance. Their higher oxidation and creep deformation resistance makes them suitable for heat exchangers, boilers, and pressure vessels, providing long-term performance in harsh environments.
Weston Stainless offers SS 348 Nuts with Mill Test Certificates (MTC) according to EN 10204 3.1, confirming their chemical and mechanical composition. The nuts are packed securely in wooden boxes, bubble wraps, or cartons to avoid damage during shipping. With a distribution network globally, Weston Stainless delivers safe, timely, and effective high-quality stainless steel fasteners worldwide.
©2024 Weston Stainless All Rights Reserved.
