Shanghai Tankii Alloy Material Co.,Ltd

Shanghai Tankii Alloy Material Co.,Ltd

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Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval

Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval

    • Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval
    • Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval
    • Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval
    • Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval
  • Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval

    Product Details:

    Place of Origin: Shanghai, China
    Brand Name: TANKII
    Certification: ISO9001:2008/ ROHS
    Model Number: CUNI44

    Payment & Shipping Terms:

    Minimum Order Quantity: 30kg
    Price: To negotiate
    Packaging Details: spool, coil, carton or plywood case with plastic film according to clients' requirements
    Delivery Time: 7-12 DAYS
    Payment Terms: L/C, T/T, Western Union, Paypal
    Supply Ability: 2000+TON+YEAR
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    Detailed Product Description
    Surface: Clean Without Spots Bright Composition: Copper Nickel Manganese
    Sample Free: Available Other Grades Provided: CuNi19, CuNi23, CuNi40, CuNi30
    Size: 0.01*3-0.3*600 Colour: Silver White

    0.6mm Thick CuNi44 Constantan/ Konstantan Strip/ Foil/ Sheet Cupronickel Precision Strip

     

    Description

    A copper-nickel alloy that contains specific minor amounts of additional elements to achieve precise values for the temperature coefficient of resistivity.

    Constantan is a copper-nickel alloy usually consisting of 55% Copper and 45% Nickel. Its main feature is its resistance which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as Manganin (Cu86Mn12Ni2).

    Of all modern strain gauge alloys, Constantan is the oldest, and still the most widely used. This situation reflects the fact that constantan has the best overall combination of properties needed for many strain gauge applications. This alloy has, for example, an adequately high strain sensitivity, or gauge factor, which is relatively insensitive to strain level and temperature. Its resistivity is high enough to achieve suitable resistance values in even very small grids, and its temperature coefficient of resistance is not excessive. In addition, constantan is characterized by good fatigue life and relatively high elongation capability. It must be noted, however, that constantan tends to exhibit a continuous drift at temperatures above 65 °C (150 °F); and this characteristic should be taken into account when zero stability of the strain gauge is critical over a period of hours or days.

     

    a) Ni= 44%, Mn= 1.5%, Fe= 0.5% , Cu= Balance

    b) A-Alloy: Very importantly, constantan can be processed for self-temperature compensation to match a wide range of test material coefficients of thermal expansion. An alloy is supplied in self-temperature-compensation (S-T-C) numbers 00, 03, 05, 06, 09, 13, 15, 18, 30, 40 and 50, for use on test materials with corresponding thermal expansion coefficients, expressed in parts per million by length (or µm/m) per kelvin or degree Celsius or degree Fahrenheit.

    c) P-alloy: For the measurement of very large strains, 5% (50 000 microstrain) or above, annealed constantan (P alloy) is the grid material normally selected. Constantan in this form is very ductile; and, in gauge lengths of 0.125 in (3 mm) and longer, can be strained to >20%. It should be borne in mind, however, that under high cyclic strains the P alloy will exhibit some permanent resistance change with each cycle, and cause a corresponding zero shift in the strain gauge. Because of this characteristic, and the tendency for premature grid failure with repeated straining, P alloy is not ordinarily recommended for cyclic strain applications. P alloy is available with S-T-C numbers of 08 and 40 for use on metals and plastics, respectively.

     

      Cu CuNi2 CuNi6 CuNi10 CuNi23Mn CuNi44
    Tensile strength [N/mm²] 220-300 260-360 270-370 300-390 500-550 560-680
    Yield strength at 1% elongation [N/mm²] 120-200 140-240 160-220 140-250 200-330 400-500
    Bending proof performance [%] 100     160 760  
    Resistance (IACS) [%] 101 34 17 12 6 3
    Conductivity [S*m/mm²] 58.5 20.0 10.0 6.7 3.33 2.0
    Resistivity [Ohm*mm²/m] 0.0171 0.05 0.10 0.1493 0.30 0.50
    Thermal coefficient of resistance [1E-6/K] 3900-4300 1100-1600 500-900 350-400 150-200 -80 - +40
    Solderability [-] good good good good good no conventional soldering

     

    Constantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS ApprovalConstantan / Sheet Cupronickel Precision Strip 0.6mm CuNi44 ROHS Approval

     

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