Surface treatment "Outer surface treatment of the tube, inner surface treatment of the tube"
Zinc-based and nickel-based rust prevention treatments developed independently are applied according to various uses.
Reliable zinc-based and nickel-based coatings are widely applied for rust prevention treatments of automotive components. However, the inner and outer surfaces of tubes manufactured by Usui International Industry Co., Ltd. are treated with uniquely developed zinc-based and nickel-based rust prevention treatments tailored for various applications. The inner surface treatment of the tubes is applicable only to single-layer rolled steel pipes. 【Features of Inner Surface Treatment of Tubes】 ○ Nickel → Prevents copper leaching, suitable for alcohol fuel and sour gasoline countermeasures. ○ HINIC (Multi-layer Ni) → Improved corrosion resistance, suitable for alcohol fuel and sour gasoline countermeasures. For more details, please contact us or download the catalog.
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**Features of Tube Outer Surface Treatment** ○ Zinc, Nickel + Trivalent Chromate → Heat resistance, corrosion resistance ○ HI-TIN-Z → Heat resistance, high corrosion resistance (for salt damage prevention) ○ ZINIC → Heat resistance, high corrosion resistance (for salt damage prevention) ○ New Super Coat → High corrosion resistance ○ PC Tube → High corrosion resistance, stone impact resistance ○ ULLT → High corrosion resistance, stone impact resistance ● For more details, please contact us or download the catalog.
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Company information
Usui International Industries Co., Ltd. has been striving for the development of new products since its establishment in 1941, accumulating technology and obtaining numerous patents, contributing to the development of the global automotive industry and thereby contributing to societal progress and the enriched lives of people. Usui International Industries primarily focuses on automotive piping, offering a wide range of products globally, including high-pressure fuel injection pipes for common rail systems, pulsation-reducing fuel rails for MPI, high-pressure fuel rails and connecting pipes for gasoline direct injection engines, cooling fans, fan drives (bimetal type and external control type), multi-tube heat exchangers, metal gaskets, and more, along with meticulous services. Moving forward, we are committed to creating new core industries based on these foundations. As the globalization of the automotive industry progresses, we have expanded our production and sales bases not only in the United States, Thailand, and China but also newly into India, Indonesia, and Mexico. We aim to enhance customer support at our sales bases in France, Germany, and South Korea, while also strengthening our overseas network, including technical partnerships in Taiwan, Thailand, Indonesia, and India, as we strive to become a true global company.