Home Products High Performance Alloys Copper Nickel Tin Foil Gauge Alloy Strip COPPER NICKEL TIN FOIL GAUGE ALLOYS DESIGNED FOR ADVANCED ELECTRONICS As the consumer electronics industry designs smaller, lighter devices that perform better and have ever-increasing capabilities, the materials used to make electronic connectors, switches, and sensors should enable and enhance next-generation designs. At Materion, we’re focused on staying ahead of device design, and our high performance BrushForm® strip alloys are engineered specifically to meet the requirements of emerging technologies. Our spinodally-hardened copper nickel tin strip alloys provide optimal strength in thin foil gauges, making them ideal for use in devices such as smartphones, tablets and cameras. They offer higher strength than other copper alloys, but do not contain beryllium, so they can be used when beryllium-free alloys are desired. The materials are RoHS compliant and infinitely recyclable. COPPER NICKEL TIN BRUSHFORM® ALLOYS BrushForm 158 (BF 158) and BrushForm 96 (BF 96) alloys are available in both pre-heat treated (mill hardened) and heat treatable (age hardenable) strip forms. BRUSHFORM® 158 STRIP ALLOY BF158 strip is engineered to provide optimal formability and increased strength requirements for voice coil motor and optical image stabilizing applications in smartphones. BF158 strip offers substantially higher strength in foil gauges as thin as 0.001” (0.025 mm) for greater design flexibility. BF 158 alloys are available in multiple tempers to meet different application requirements. Our newest tempers, TM18 and TM19, provide excellent flatness and stiffness coupled with high resistance to vibration, fatigue and impact loading – all requirements for enhanced performance as voice coil motor springs used in optical image stabilization systems. TM18 and TM19 tempers can be used as titanium replacements. These alloys outperform copper beryllium and copper titanium in applications with high strength/high temperature requirements, and they have good corrosion resistance which is important for water-resistant devices. To learn more about BF 158 physical and mechanical properties, sizes and tolerances, download our BF158 data sheet. BRUSHFORM 158 STRIP ALLOY MARKETS & APPLICATIONS Our copper nickel tin strip has been used in markets and applications with demanding specifications including: Voice coil motor springs (VCM) Optical image stabilizers (OIS) Electromagnetic shielding gaskets BRUSHFORM 158 STRIP SPECIFICATIONS & STANDARDS UNS C72900, ASTM B 740 BRUSHFORM® 96 STRIP ALLOY BF 96 strip is another high-performance, heat treatable spinodal copper nickel tin alloy designed to provide optimal formability and strength characteristics in conductive spring applications, including connectors, switches, and sensors. To learn more about BF 96 physical and mechanical properties, download our BF 96 data sheet. DOWNLOAD THE NEWLY UPDATED GUIDE TO HIGH PERFORMANCE ALLOYS This guide has been updated with additional information about new ToughMet® alloy tempers, the expanded size range of ToughMet TS alloys, along with new galling, wear and temperature dependent property data and improved micrographs. To learn more about our alloys, download the updated comprehensive, 84-page Guide to High Performance Alloys. The guide provides important details about the physical and mechanical properties of our standard alloys, application and engineering data as well as processing and fabrication recommendations. WORK WITH MATERION Talk with our engineers about incorporating this beryllium-free, copper nickel tin foil strip into your design today.