NiCr 30 20

Werkstoff – Nr. 1.4860
DIN 17470 / 17471
Common trade names: Common trade names: NiCr30/20, Ni30Cr20.

NiCr 30 20 (1.4860) can be used at operating temperature up to 1000°C. Nickel-chromium alloy 30/20 is especially characterized by high resistivity and relatively low prices when compared with other nickel-chromium alloys. In spite of its relatively high iron content, NiCr3020 is resistant to oxidation and chemical corrosion. Nichrome 30/20 is non-magnetic.

Chemical composition

Iron Fe Bal. Nickel Ni 28% Chromium Cr 18-22% Silicon Si 1.8-3% Manganese Mn 1.0% Carbon C 0.10%

Physical properties

Density at
room°C

Electrical
resistivity
at 20°C

Melting point,
°C

Max continuous
operating temperature
in air, °C

Magnetic properties

7.9 g/cm3

1.04 microhm-m

1380

1100

The material is magnetic


Mechanical properties

NiCr 80 20
wire, mm

Yield strength
Rp0.2 (MPa)

Tensile strength
Rm (MPa)

Elongation
A %

Hardness Hv

1.0

340

675

35

180

4.0

300

650

30

160


Product forms

Product

    Size, mm   

Condition of supply

  wire

0.2 – 12.0

            bright annealed
            oxidized

  bar

5.0 – 60.0

            hot finished
            cold finished
            peeled
            bright turned
            bright annealed

  strip

Thickness 2.5 – 5.0
Width 20 – 100

            cold finished
            bright annealed

  stranded wire

2.5 – 3.0

            hard
            annealed


Application

NiCr 30 20 (1.4860) is used as electric components in domestic appliances and other electric heating equipment. It has good ductility after long time usage, good mechanical property at high temperature and good weldability. The maximum working temperature in air is +600°C when used for resistance wires and +1050°C when used for heating wires.
  • high-value electrical resistors and for heating wires.
  • electric heating elements (Electric blankets and pads, car seats, baseboard heaters, floor heaters, resistors).
  • industrial furnaces up to 1000°
  • heating cables, rope heaters rope heaters in defrosting and de-icing elements.


Our customers can buy nichrome wire online according to their requests.

 NiCr 3020 datasheet. Download(286KB)