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)