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HOME Company COMPANY INFORMATION Company Information Message from the President Corporate Philosophy Company Profile Offices History Group Companies Products PRODUCTSTECHNOLOGY Products &＃038; Technology List of Products by Application Steel plate related Tinplate Tin Free Steel（Hi-Top） Laminated Steel Sheet（Hi-Pet） Electro-galvanized Steel Sheet（Silver Top） Nickel-plated Steel Sheet（Ni-Top） Cold Rolled Steel Sheet（TOP） Vinyl Chloride Resin Decorative Steel Sheet（VINYTOP） SF : Steel Foil Functional Materials Aluminum substrates for magnetic disks（MD） Functional film for optics（Fine Cast Film） Functional film for container（Fine Cast Film） New Materials DNA Chip Genetic Analysis System Research & Development List of products under development Sustainability SUSTAINABILITY Sustainability Society Procurement List of procured items The chemical substances (group) which Toyo Kohan regulates (The 8 edition) Inquiry --> HOME Company COMPANY INFORMATION Company Information Message from the President Corporate Philosophy Company Profile Offices History Group Companies Products PRODUCTSTECHNOLOGY Products &＃038; Technology List of Products by Application Steel plate related Tinplate Tin Free Steel（Hi-Top） Laminated Steel Sheet（Hi-Pet） Electro-galvanized Steel Sheet（Silver Top） Nickel-plated Steel Sheet（Ni-Top） Cold Rolled Steel Sheet（TOP） Vinyl Chloride Resin Decorative Steel Sheet（VINYTOP） SF : Steel Foil Functional Materials Aluminum substrates for magnetic disks（MD） Functional film for optics（Fine Cast Film） Functional film for container（Fine Cast Film） New Materials DNA Chip Genetic Analysis System Research & Development List of products under development Sustainability SUSTAINABILITY Sustainability Society Procurement List of procured items The chemical substances (group) which Toyo Kohan regulates (The 8 edition) Inquiry --> --> Products menu Products menu Steel plate related Tinplate Tin Free Steel（Hi-Top） Laminated Steel Sheet（Hi-Pet） Electro-galvanized Steel Sheet（Silver Top） Nickel-plated Steel Sheet（Ni-Top） Cold Rolled Steel Sheet（TOP） Vinyl Chloride Resin Decorative Steel Sheet（VINYTOP） SF : Steel Foil Functional Materials Aluminum substrates for magnetic disks（MD） Functional film for optics（Fine Cast Film） Functional film for container（Fine Cast Film） New Materials DNA Chip Genetic Analysis System Research & Development Research &＃038; Development Ultra-thin Steel Foil Electrolytic NiP Plating Pure Iron Foil Resin surface treatment for metal bonding Iron-based metallic foil for current collectors for all solid-state/advanced LIBs Silver Top for Composite Substrates with Excellent Resin Adhesion Flexible Copper-Clad Laminates (FCCL) Non-electrolytic plating resin film Clad Materials（FINE CLAD） HOMEProducts &＃038; TechnologyTinplate PRODUCTS Products & Technology／Steel Sheet-Related Products Tinplate Indispensable in daily life, tin plate is a reliable material boasting an attractive luster and excellent corrosion resistance. Toyo Kohan provides high-quality tin plate to a wide range of specifications to meet customer needs. Since our founding in 1934, we have grown together with our customers by manufacturing tin plate as a material for containers. The technology that we developed with our customers continues to evolve, and we are now focusing on new uses that can contribute to the solving of environmental problems. Beautiful surface Tin plate has a beautiful surface after coating and printing, with a unique and attractive metallic luster. Excellent weldability All kinds of processing (bending, drawing, etc.), welding, and soldering are easy to perform. Excellent corrosion resistance With its excellent corrosion resistance, it is widely used for food cans. (Conforms to the Food Sanitation Act.) Our Products Tinplate Basic composition This surface-treated steel sheet is made by tin plating the surface of cold-rolled steel sheets. Sheet thickness of 0.2 mm and sheet width of about 900 mm are usual. LTS／CR Tinplate Basic composition LTS Thin tin-plated steel sheet features the minimum amount of tin (1.3 g/m2) that can be stably welded from an economic standpoint, and offers improved paint adhesion strength compared to tin plate. CR Tinplate Tin plate with improved paint adhesion. Application Food cans Beverage cans and metal caps 18-liter cans Candy tins Spray cans Tin plate toys Electric and electronic parts Bearing parts（sealing parts） Tin plate has found itself integrated into various aspects of our daily lives. Since 1934, when we became the first privately owned tin plate manufacturer in Japan, we have been providing high-quality tin plate to meet our customers&＃8217; needs. Our high-quality tin plate, produced using traditional techniques in state-of-the-art facilities, is highly appreciated by our customers both in Japan and overseas. Related sites Japan Canners Association National Federation of 18-Liter Can Industry Associations Japan General Tin Can Manufacturer Alliance Examples！ Gift Package Cans（Tinplate） From COOKIEs and rice crackers to tea leaves and dried foods, opening the lid delivers a simply irresistible moment.At Toyo Kohan, we also work on decorative cans for gifts that epitomize the Japanese spirit of thoughtfulness. Manufacturing process Tin plate, which is used for a wide range of applications including can materials, is manufactured under strict quality control to ensure the right characteristics for each application. Properties ProductTinplateHi-TopTin（Sn=2.8g/m²）LTSHi-Top（TFS）WHT-2WeldabilityRC value（mΩ）10.1 to 0.30.1 to 0.3100 to 2000.1 to 0.3AssessmentGoodGoodBadGoodRust proofingSalt spray test2ExcellentGoodPoorPoorCoating AdhesionCup process adhesion test3PoorGoodExcellentExcellentT peel test4PoorGoodExcellentExcellent 1 RC value: Test materials heat processed for 20 minutes at 205 degree centigrade then contact electrical resistance is measured using our company&＃8217;s RC measuring instruments (RC value: Small → Weldability: Good) 2 Salt spray test: 35 degree centigrade, 5% salt solution sprayed for 2 hours → visual inspection 3 Cup process adhesion test: Lacquer coating → cup process → cup wall surface coated film strength peeled with tape → visual inspection 4 T peel test: Lacquer coating → Cut to 5 mm width → 2 test material sheets thermally compressed via nylon film → Measure peeling stress Weldability The following diagram shows an example of the weldable current range using manufactured can seam welder. Good welding materials possess a wide weldable current range. Available Sizes The manufacturable range depends on the combination of each specification (thickness, width, temper etc.).Ask us especially about combination specifications with sheet thickness upper and lower limits and sheet width upper limits.Also ask us about specifications as needed. Sheet Normal manufacturing rangeManufacturable rangeSheet Thickness（mm）0.15 to 0.500.13 to 0.60Sheet Width（mm）&＃8211;670 to 1,060Length（mm）510 to 1,070460 to 1,110 Coil Normal manufacturing rangeManufacturable rangeSheet Thickness（mm）0.15 to 0.600.07 to 0.80Sheet Width（mm）&＃8211;670 to 1,060 Hoop Normal manufacturing rangeManufacturable rangeSheet Thickness（mm）0.15 to 0.500.13 to 0.60Sheet Width（mm）30 to 50010 to 500 Standards Tin is manufactured under strict quality controls based on standards comparable to JIS G 3303. Temper grade Temper grade symbolHardness (HR30TSm)FeaturesThickness t (mm)t≦0.2100.210