Strips and Foils
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    Copper-Nickel Strips and Foils

    This specialty of copper-nickel tin alloys is the very high strength in combination with a very good relaxation resistance, also combined with good formability. Typical alloys are Wieland-L49 (CuNi9Sn2, C72500) and Wieland-L96 (CuNi9Sn6, similar to C72700). Wieland-L96 is an environmental friendly alterative to Copper Berryllium and can be supplied in the milled hardened condition or quenchend and rolled allowing complex forming and hardening after stamping. L96 is as well used as an alternative to Copper Titanium alloys.
    Additional information

    Material overview

    ASTM-UNS No.    		 Wieland Designation ⁠EN Designation EN No. JIS No. Data Sheet
    C72500    		 L49 CuNi9Sn2 CW351H - download
    -    		 L96 CuNi9Sn6 - - download
    Overview Available Dimensions Delivery Formats Typical Applications

    Choosing the Right Copper-Nickel Grade

     

    Copper-nickel-tin alloys L49 and L96 stand out for very high strength combined with very good relaxation resistance and good formability – a combination that lets L96 replace traditional beryllium coppers (CuBe1.7, CuBe2) and CuTi3 . Typical applications are grounding springs, backplane connectors, and springs in switches & relays.

     

    Not sure which grade fits your process? Wieland’s Alloy Wizard helps narrow down the right copper-nickel grade based on your application requirements.

    Alloywizard

    Compare materials and tempers based on key mechanical and physical properties and find the best solution for your application.

    Available Dimensions

     

    Strip thickness0.05–1.50 mm (thicker gauges on request)
    Strip widthstandard up to 200 mm per EN 1652 (wider on request)

     

     

    Delivery Formats
    Wieland
    Strips and Foils

    Delivery Formats and Packaging for Rolled Products

    Coil, traverse-wound strip, Wieland-MULTICOIL®, and Wieland-FLEXIDRUM® – delivery formats and packaging for Wieland rolled copper and copper alloy strip.

     

    Typical Applications

     

    Miniaturized signal connectors, springs in mobile phones, grounding contacts in consumer electronics and datacom.

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