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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; TechnologyNickel-plated Steel Sheet（Ni-Top） PRODUCTS Products & Technology／Steel Sheet-Related Products Nickel-plated Steel Sheet（Ni-Top） Nickel is not easily oxidized at high temperatures, and has excellent corrosion resistance against alkalis and chemicals. Toyo Kohan provides highly functional nickel-plated steel sheet (Ni-Top) that makes the most of these properties of nickel by combining our unique surface treatment technology and rolling technology cultivated over many years to meet customer needs. Nickel-plated steel sheet（Ni-Top）（Product catalog PDF/1.3MB） Technology The integration of the world class surface treatment and rolling technology realized high performance and high precision Ni-Top with excellent exterior appearance. Superior Workability Diffusion annealing process improves plating adhesion and corrosion resistance of the product and enhances the product’s processing suitability. Quality Toyo Kohan maintains stability of product function and quality by placing strict control on quality management. Diffusion Aneealed Ni-Top Diffusion Annealed（Semi-Gloss, Matte） Excellent heat and corrosion resistance. Diffusion annealing process reduces rusting caused by cracks at stamping process as it improves plating adhesion and workability of the plating layer. Non-Diffusion Annealed Ni-Top Nickel-plated only Excellent heat and corrosion resistance. Low contact resistance that is stable over time. Applications Dry cell batteries Nickel hydride batteries Automotive parts Perforated core materials Electrical and electronic parts Stepper motor parts Stationery Nickel is not easily oxidized at high temperatures, and has excellent resistance against corrosion by alkalis and chemicals. Toyo Kohan&＃8217;s Ni-Top is a plated steel sheet that makes the most of these properties of nickel by combining our unique surface treatment technology and rolling technology cultivated over many years. Due to its superior performance, Ni-Top is used in key parts of nickel hydride batteries and lithium-ion batteries for environmentally friendly hybrid and electric vehicles.From dry-cell batteries to automotive parts, our earth-friendly, futuristic material Ni-Top is at your service. Here too！ Batteries（Ni-Top） Batteries have long been used to operate watches, toys, and remote controls, but now they are also used in environmentally friendly electric vehicles. Through the power of technology, Toyo Kohan continues to help protect the global environment. Alkaline batteries We offer nickel plating solutions for a variety of battery and product designs. Lithium-ion batteries Stepper motors (electrical and electronic components) We can also provide high-temperature heat treatment after processing. Fuel pipes (automotive) Excellent resistance to deterioration, gasoline, heat, exhaust gases, etc. Mufflers (automotive) Perforated core materials (automotive) Perforated core materials processed by our proprietary rotary press method are mainly used as battery parts for hybrid vehicles. Properties Plating Structure Fe-Ni diffusion layer is derived by thermal process. Diffusion Aneealed Ni-Top Example of Ni and Fe depth distribution measurement using GDS Non-Diffusion Annealed Ni-Top Example of Ni and Fe depth distribution measurement using GDS Electric Contact Resistance Resistance（mΩ）InitialAfterSemi-gloss2.57.3Diffasion Annealed2.98.9 Over time：60℃×95%RH×2weeks Comparison of Eriksen Corrosion Resistance Diffusion annealed Ni-Top has excellent processing properties and has less cracks during processing. Therefore, the product is prevented from corrosion. Type／Test item Cu-sulfate（5%） Solution Temp; 35℃ Immersed Time ; 10s Eriksen; 7mm Sheet Thickness 0.25mm, Plating Thickness; 3 µm Diffusion Annealed Ni-Top As Plated Ni-Top Charged Voltage and Tensile Shear Strength No need for detailed settings due to wide range of welding conditions. Comparison between as plated Ni-Top and dissusion annealed Ni-Top Diffusion Aneealed Ni-Top 0% 10% 20% 25% Nickel-plated only 0% 10% 20% 25% Plating Thickness; 3 µm. JIS Z 2371 5% saltwater at 35℃ for 2 hours, tensile test distortion added（JIS specimen #5） Available Sizes Available Size Range Plating Thickness Standard plating thicknesses are shown in the table below. Please contact us if different plating thickness is required on each side. “Equal thickness plating” refers to sheet with the same amount of plating on both sides, while “Differential thickness plating” refers to sheet with different amounts of plating on each side. Ni thickness can be adjusted in increments of 0.5 μm. Please discuss your needs with us. Plating Thickness（same amount for Top/Bottom）Plating Thickness（μm）Plating Weight（g/m²）0.25/0.252.23/2.230.5/0.54.45/4.451.0/1.08.9/8.92.0/2.017.8/17.83.0/3.026.7/26.74.0/4.035.6/35.65.0/5.044.5/44.56.0/6.053.4/53.410.0/10.089.0/89.0 For differential thickness plating or plating in increments under 0.5 µm, please discuss your needs with us. Standards Base material coil tempering classifications A wide range of steel grades are available for selection, and standard characteristics can be controlled to meet various needs. (Thick material equivalent to JIS G-3141 standard) TypeTamper GradeCodeHardnessHVHR30TSPCCS（Standard Temper）SBLess than 116Less than 60SASDSE4（1/4 hardness）SU4116 to 15160 to 70SU52（1/2 hardness）2135 to 17966 to 762C11More than 164More than 73SPCDSSDLess than 116Less than 60 Chemical Composition （WT%） TypeCMnPSFeSPCCLess than 0.15Less than 1.00Less than 0.100Less than 0.035BalSPCDLess than 0.10Less than 0.50Less than 0.040Less than 0.035BalSPCELess than 0.08Less than 0.45Less than 0.030Less than 0.030Bal Surface finish Whether carefully polished or uniformly dull-finished, these rolls deliver a clean appearance to meet diverse needs. Surface FinishCodeDescriptionDull FinishDLusterless and technically roughly finished.Bright FinishBSmooth and flat finish. Toyo Kohan Co., Ltd. Terms of Use Privacy Policy COOKIE Policy Site Map © Toyo Kohan Co., Ltd.