100% recycled materials + high purity 4N Polish tin ingots | High purity recycled non-ferrous metals
Tin (Sn) is a non-ferrous metal with excellent electrical properties, ductility, and corrosion resistance, making it an essential material in the field of electronic materials and precision solder, where high reliability is required. This product is a high-purity recycled tin ingot of 4N grade (Sn 99.99% or higher) produced in Poland. The raw materials are 100% recycled, using only circular materials such as electronic component scrap and metal scrap, and are manufactured through an environmentally friendly process that does not utilize mined raw materials. Through an advanced re-refining process that combines distillation and electrolytic refining, trace impurities are strictly controlled at the ppm level. It excels in fluidity, wettability, and oxidation stability during re-melting, providing stable quality for automotive electronics, high-reliability electronic components, and precision mounting applications. Chemical analysis is conducted for each lot, allowing for lot-based traceability management. It is suitable for processes that require long continuous operation and high yield, as it can suppress variations caused by impurities. With a track record of adoption primarily in Europe, it is an ideal tin material for applications that demand both China-free sourcing and high purity with environmental consideration.
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[Summary] Product Name: Recycled Tin Ingot (4N Grade) Chemical Formula: Sn Country of Production: Poland Raw Material: 100% recycled material (circular tin without mined materials) Shape: Ingot (standard 25kg) Special Notes: High re-meltability ensures stable melting behavior Extremely low generation of oxidized slag Minimum Order Quantity: Available from sample or lot units Manufacturing Process: Collection → Pre-treatment → Distillation Refining → Re-refining → Ingot Casting [Specifications] Appearance: Has a silver-white metallic luster Purity (Sn): 99.99% or higher Typical Impurity Maximum Values (in %): Sb: 0.003 Cu: 0.0007 Bi: 0.0020 Fe: 0.002 Ag: 0.0020 Zn: 0.0005 Al: 0.0002 As: 0.0006 Cd: 0.001 Pb: 0.0025 [Contact Information] Kowa Company, Ltd. Industrial Related Business Division, Resource Materials Department, Inorganic Materials Section TEL: 03-3279-8057 FAX: 03-3279-8029 *For inquiries via the web, please use the inquiry form below.
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This 4N recycled tin (Sn 99.99% or higher) features stable electrical properties and re-melting behavior due to high purity and low impurity management, making it suitable for applications that require high reliability. In the field of electronic materials, it is appropriate for high-reliability solder, precision mounting, and fine wiring joint applications, and is adopted in electronic components such as automotive electronics, industrial equipment, and communication devices, where long-term reliability is essential. Additionally, it is valued for its ability to suppress property variations caused by trace impurities when used as a raw material for semiconductor peripheral materials and alloys for electronic components. In the field of metal materials, it is used as a raw material for high-purity alloys and special alloys, contributing to precision casting and high yield processes. Since the raw material is 100% recycled, it is suitable for projects that require China-free and environmentally conscious procurement, making it a high-purity tin material that can accommodate a wide range of applications from research and development to mass production scale.
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Company information
Kowa Co., Ltd. is a company with a history of over 120 years, founded in 1894 as a cotton fabric wholesaler. As the core company of the Kowa Group, it has both trading functions for the import and export of textiles, machinery, building materials, and trilateral trade, as well as manufacturing functions for pharmaceuticals, medical devices, vision units, energy-saving, and energy-creating related products, covering a wide range of business fields. One of its divisions, the Kowa Resource Materials Department, Inorganic Materials Section, engages in wholesale business for the import and export of raw materials and also acts as a sales agent for distinctive domestic and overseas raw materials.
