Lecong Stainless stands out as a top manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Stainless Steel 348H Bars. These bars are celebrated for their impressive high-temperature strength, resistance to corrosion, and remarkable durability over time. Stainless Steel 348H is a titanium-stabilized austenitic stainless steel, specifically engineered to combat intergranular corrosion and uphold mechanical integrity even when exposed to high temperatures for extended periods. Each bar is meticulously crafted to adhere to international standards, making them perfect for critical uses in power generation, chemical processing, and various industrial applications. Lecong Stainless is committed to delivering consistent quality through cutting-edge production methods and rigorous quality control practices.
The composition of Stainless Steel 348H Bars primarily includes iron, chromium (17–19%), nickel (8–12%), along with titanium for stabilization, manganese, silicon, and a carefully controlled carbon content. The titanium stabilization plays a crucial role in preventing carbide precipitation during welding, which boosts corrosion resistance and preserves mechanical strength at elevated temperatures. These bars boast impressive mechanical properties, featuring a tensile strength ranging from 515 to 750 MPa, yield strength between 205 and 275 MPa, and outstanding creep and oxidation resistance at temperatures reaching up to 700°C. The austenitic microstructure contributes to their toughness, dimensional stability, and long-lasting durability in challenging thermal and chemical conditions.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 348H | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 17 – 19 | – | 9 – 13 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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All Stainless Steel 348H Bars are thoroughly tested at Lecong Stainless to ensure quality and performance. Our products are certified to the international standards and tested for mechanical strength, corrosion resistance, and high-temperature durability. We provide MTC, third-party inspection reports, and international specifications for assurance.
348H round bars offer high-temperature strength and corrosion resistance, ideal for aerospace, chemical processing, and nuclear applications requiring durability and reliable performance under extreme conditions.
348H flat bars provide excellent resistance to oxidation and intergranular corrosion, suitable for heat exchangers, boiler tubes, and furnace components in high-temperature industrial environments.
348H square bars are used in high-stress applications, offering superior strength and stability for structural components in aerospace, chemical, and nuclear industries.
348H rectangular bars deliver robust performance in high-temperature environments, ideal for critical components in chemical processing equipment, heat exchangers, and nuclear reactors.
348H hexagonal bars provide excellent mechanical properties and corrosion resistance, perfect for fasteners, fittings, and other components in demanding aerospace and industrial applications.
348H T-bars offer high strength and corrosion resistance, suitable for structural support in high-temperature environments such as chemical plants and power generation facilities.
Stainless Steel 348H Bars find extensive applications in industries that demand materials with high-temperature strength and corrosion resistance. They are frequently utilized in boilers, heat exchangers, pressure vessels, and components for furnaces. In the chemical and petrochemical sectors, these bars are essential for reactor parts, process equipment, and high-temperature piping. Their exceptional mechanical properties also make them ideal for use in power generation, aerospace, and marine industries. Furthermore, Stainless Steel 348H Bars are crucial in food processing and pharmaceutical equipment, where both high-temperature stability and corrosion resistance are vital. Their strength and reliability make them a go-to choice for a variety of demanding applications.
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