Lecong Stainless is a reputable manufacturer and supplier located in Da Nang, Vietnam, known for its top-notch Stainless Steel 348 Nuts. The company is dedicated to providing precision-engineered fastening solutions, catering to industries that demand high strength and exceptional heat resistance. These Stainless Steel 348 Nuts are crafted to perform reliably in high-temperature settings where stability and durability are paramount. Lecong Stainless adheres to strict quality standards, ensuring their products boast superior corrosion resistance and outstanding performance under thermal stress. With a customer-centric approach and competitive pricing, they have become a go-to choice for stainless steel fasteners both in Vietnam and on the international stage.
These Stainless Steel 348 Nuts are made with a blend of chromium, nickel, and columbium (niobium), which gives them remarkable resistance to intergranular corrosion at elevated temperatures. The typical composition features 17–19% chromium, 9–13% nickel, along with controlled amounts of carbon, manganese, and silicon. The inclusion of columbium helps stabilize the structure against carbide precipitation. In terms of mechanical properties, they offer a tensile strength of around 515 MPa, a yield strength of about 205 MPa, and an elongation of 40%. With excellent creep strength and oxidation resistance up to 1500°F (816°C), these Stainless Steel 348 Nuts guarantee durability, toughness, and reliable performance in demanding industrial 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.
Lecong 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.
You’ll find Stainless Steel 348 Nuts widely used in industries that require high-temperature strength and corrosion resistance. They’re commonly found in chemical processing equipment, heat exchangers, boiler systems, and high-temperature fastener assemblies. In the aerospace and power generation sectors, these nuts provide stability even under extreme thermal conditions. They’re also utilized in refineries, pressure vessels, and exhaust manifolds, where resistance to scaling and intergranular corrosion is crucial. Their exceptional durability makes them ideal for marine environments and high-stress applications.
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