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Resistors 5mm Width 1Cr13Al4 Bright Flat Strip FeCrAl resistance wire

Short Description:

FeCrAl alloys are characterized by excellent oxidation resistance and very good form stability resulting in long element life.
They are typically used in electrical heating elements in industrial furnaces and home appliances
FeCrAl alloys have higher service temperature than NiCr Alloys and much lower prices. But they have lower stability and flexibility, easily to be fragile after a time circle


  • Certificate: ISO 9001
  • Size: Customized
  • material: FeCrAl
  • grade: 1Cr13Al4
  • surface: bright
  • density: 7.1g/cm3
  • condition: soft
  • type: bare wire
  • Product Detail

    FAQ

    Product Tags

    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 [1, 2]. 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.

     

    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.

     

    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

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