Shanghai Tankii Alloy Material Co.,Ltd

Shanghai Tankii Alloy Material Co.,Ltd

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Bright Soft Surface Alloy 750 Fe Cr Al Alloy Strip 7.4 Density For Resistors

Bright Soft Surface Alloy 750 Fe Cr Al Alloy Strip 7.4 Density For Resistors

    • Bright Soft Surface Alloy 750  Fe Cr Al Alloy Strip 7.4 Density For Resistors
    • Bright Soft Surface Alloy 750  Fe Cr Al Alloy Strip 7.4 Density For Resistors
    • Bright Soft Surface Alloy 750  Fe Cr Al Alloy Strip 7.4 Density For Resistors
  • Bright Soft Surface Alloy 750  Fe Cr Al Alloy Strip 7.4 Density For Resistors

    Product Details:

    Place of Origin: Shanghai, China
    Brand Name: Tankii
    Certification: ISO9001:2015
    Model Number: 1Cr13Al4

    Payment & Shipping Terms:

    Minimum Order Quantity: 50kg
    Price: Negotiated price
    Packaging Details: Spool in carton, if necessary with plywood pallet o plywood case or according to client´s requirements
    Delivery Time: 25-30 DAYS
    Payment Terms: L/C, T/T, Western Union, MoneyGram, Paypal
    Supply Ability: 200+TON+MONTH
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    Detailed Product Description
    Material: FeCrAl Alloy Feature: Bright/ Soft
    Application: Resistors Resistivity: 1.25
    Density: 7.4 Other Name: 1Cr13Al4, Resistohm 125, Etc..

    1Cr13Al4 FeCrAl alloy Bright Flat Strip/ Wide Strip for Resistors Use

     

    Fecral Alloys and Nickel-chromium alloys have been chosen to be the resistive material for embedded resistor because nickel-chromium alloys possess high electrical resistivity that is widely used for thin film resistors. The sheet resistance of nickel-chrome alloy film containing 20% chromium can be as high as 2-3 kilo ohms and still maintain good stability. The temperature coefficient 1 of resistance (TCR) for bulk nickel-chrome alloy is about 110 ppm/°C. By alloying a small amount of silicon and aluminum with nickel-chromium, the temperature stability is further improved.

     

     

    Brand name 1Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 0Cr21Al4 0Cr21Al6Nb 0Cr27Al7Mo2
    Main chemical composition% Cr 12.0-15.0 23.0-26.0 19.0-22.0 22.5-24.5 18.0-21.0 21.0-23.0 26.5-27.8
    Al 4.0-6.0 4.5-6.5 5.0-7.0 4.2-5.0 3.0-4.2 5.0-7.0 6.0-7.0
    RE opportune
    amount
    opportune
    amount
    opportune
    amount
    opportune
    amount
    opportune
    amount
    opportune
    amount
    opportune
    amount
    Fe Rest Rest Rest Rest Rest Rest Rest
                Nb0.5 Mo1.8-2.2
    Max.continuous
    service temp.of
    element (ºC)
    950 1250 1250 1250 1100 1350 1400
    Resistivity
    μΩ.m,20ºC
    1.25 1.42 1.42 1.35 1.23 1.45 1.53
    Density
    (g/cm3 )
    7.4 7.10 7.16 7.25 7.35 7.10 7.10
    Thermal
    conductivity
    KJ/m.h.ºC
    52.7 46.1 63.2 60.2 46.9 46.1 45.2
    Coefficient of
    lines expansion
    α×10-6/ºC
    15.4 16.0 14.7 15.0 13.5 16.0 16.0
    Melting pointºC 1450 1500 1500 1500 1500 1510 1520
    Tensile strength
    Mpa
    580-680 630-780 630-780 630-780 600-700 650-800 680-830
    Elongation at
    rupture %
    >16 >12 >12 >12 >12 >12 >10
    Variation of
    area %
    65-75 60-75 65-75 65-75 65-75 65-75 65-75
    Repeat bending
    frequency(F/R)
    >5 >5 >5 >5 >5 >5 >5
    Hardness(H.B.) 200-260 200-260 200-260 200-260 200-260 200-260 200-260
    Micrographic
    structure
    Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite
    Magnetic
    properties
    Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

     

    Application:

    Resistors embedded in a printed wiring board will be an enabler for miniaturizing packages with higher reliability and improved electrical performance. Integrating the resistor functionality into the laminate substrate frees up the PWB surface area consumed by discrete components, enabling increased device functionality by the placement of more active components. Nickel-chromium alloys possess high electrical resistivity, which make them practical for use in a variety of applications. Nickel and chromium are alloyed with silicon and aluminum to improve temperature stability and lower the thermal coefficient of resistance. A thin film resistive layer based on nickel-chromium alloys has been deposited continuously onto rolls of copper foil to create a material for embedded resistor applications. The thin film resistive layer sandwiched between copper and laminate can be selectively etched to form discrete resistors. The chemicals for etching are common in PWB production processes. By controlling the thickness of the alloys, sheet resistance values from 25 to 250 ohm/sq. are obtained. This paper will compare two nickel-chromium materials in their etching methodologies, uniformity, power handling, thermal performance, adhesion and etching resolution.

     

    Bright Soft Surface Alloy 750  Fe Cr Al Alloy Strip 7.4 Density For ResistorsBright Soft Surface Alloy 750  Fe Cr Al Alloy Strip 7.4 Density For Resistors

    Contact Details
    Shanghai Tankii Alloy Material Co.,Ltd

    Contact Person: Linda

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