Lecong Stainless is a well-respected manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 348 Fasteners that are crafted for precision and durability. These fasteners are built to endure high temperatures and resist corrosive environments, making them perfect for demanding industrial applications. Renowned for their impressive mechanical strength and thermal stability, Stainless Steel 348 Fasteners deliver reliable performance in critical operations. Lecong Stainless adheres to strict quality standards to ensure that each product offers exceptional resistance to oxidation and intergranular corrosion. With a strong emphasis on customer satisfaction and competitive pricing, the company has established itself as a trusted source for stainless steel fasteners both in Vietnam and on the global stage.
Stainless Steel 348 Fasteners primarily consist of 17–19% chromium and 9–13% nickel, with columbium (niobium) added to prevent carbide precipitation at high temperatures. Small quantities of carbon, manganese, and silicon are included to enhance strength and workability. These fasteners boast a tensile strength of about 515 MPa, a yield strength close to 205 MPa, and an elongation of roughly 40%. They offer outstanding resistance to oxidation and intergranular corrosion at temperatures up to 1500°F (816°C), making them highly dependable under continuous heat exposure. Their unique blend of strength, toughness, and creep resistance ensures consistent mechanical performance in high-stress industrial settings.
| 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 offer exceptional corrosion resistance, particularly in harsh environments. They are available in various sizes, typically from M3 to M30, with standard dimensions conforming to ISO or ANSI specifications, ensuring secure fastening in industrial applications.
Stainless Steel 348 Stud Bolts provide superior corrosion resistance and are ideal for high-temperature applications. They usually come in sizes from M6 to M36 and lengths from 50 mm to 300 mm, meeting industrial standards for strength and durability.
Stainless Steel 348 Bolts are known for their high corrosion resistance and high-temperature performance. They are available in sizes from M6 to M30 and can be found in various lengths, complying with ANSI or ISO standards, and are suitable for heavy-duty applications.
Stainless Steel 348 Threaded Rods offer excellent resistance to oxidation and corrosion. They are commonly available in diameters from M6 to M30 and lengths ranging from 100 mm to 1000 mm. They are used in applications requiring continuous threading and high strength.
Stainless Steel 348 Screws provide robust corrosion resistance, particularly in aggressive environments. Available in sizes from M3 to M20 and lengths from 10 mm to 100 mm, they are used for precise and secure fastening in various mechanical assemblies.
Stainless Steel 348 Washers offer superior corrosion resistance and are used to distribute the load of a screw or bolt. They come in sizes from M4 to M36 and various thicknesses, adhering to standard dimensions for reliable performance in harsh conditions.
We provide essential documents such as commercial invoices, packaging lists, certificates of origin, and guarantee letters to ensure smooth transactions. Additionally our Third Party Inspection Certificate guarantees the quality and compliance of our products, ensuring complete client satisfaction. These documents are vital for transparency, traceability and assurance of the product’s quality and origin offering our clients peace of mind and confidence in their purchases.
Stainless Steel 348 Fasteners find extensive use across various industries where heat and corrosion resistance are crucial. They are commonly utilized in chemical processing plants, heat exchangers, refineries, and boiler systems. In aerospace and power generation, these fasteners play a vital role in maintaining structural stability in high-temperature applications. They are also ideal for pressure vessels, marine equipment, exhaust systems, and high-stress construction projects. Thanks to their excellent resistance to thermal cycling, Stainless Steel 348 Fasteners are the go-to choice for critical operations.
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