体彩20选5开奖结果走:NiCr 80/20

NiCr 80/20 is an nickel-chromium alloy for use at temperatures up to 1200°C. Heat resistant alloy applied in oxidizing atmospheres such as nitrogen, ammonia, unstable atmospheres containing sulfur and sulfur compounds. NiCr 80/20 has higher heat-resisting characteristic than Fe-Cr-Al alloys.

Common trade names: NiCr 80/20, Ni80Cr20, Nichrome 80, Chromel A, N8, Nikrothal 80, Resistohm 80, Cronix 80, Nichrome V, HAI-NiCr 80, X20H80.

Specifications

UNS N06003
Werkstoff – Nr. 2.4869
DIN 17470 / 17471

Chemical composition

Ni Cr Fe Si Mn C
Min76.0% 20.0-23.0% Max 1.0% 1.0-1,5% Max 1.0% Max 0.1%

 

Physical properties

Density Electrical
resistivity
at 20°C
Melting point,
°C
Max continuous
operating temperature
in air, °C
Magnetic properties
8.3 g/cm3 1.09 +/-0.05
microhm-m
1400 1200 non-magnetic

 

Mechanical properties

NiCr 80/20
wire, mm
Yield strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Elongation
A %
Hardness Hv
1.0 420 810 30 180
4.0 300 725 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/ribbon Thickness 2.5 – 5.0
Width 20 – 250
cold finished
bright annealed
foil Thickness 0.05-0.1
Width 5-250
cold finished
bright annealed
stranded wire 2.5 – 3.0 hard
annealed

 

Application
NiCr 80/20 (2.4869) is used for electric heating elements in home appliances and industrial furnaces. Typical applications are flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements
● electrical parts and electronic components
● electric heating elements (home & industrial use)
● industrial furnaces up to 1200 °C
● heating cables, mats and cords

Due to extremely good adhesion properties of the surface oxide, NiCr 80/20 offers superior service life compared to competitive Fe-Cr-Al alloys.