Project Description

Nichrome 80

Nichrome 80 is a nickel-chromium resistance alloy for operating temperatures up to 1200℃. It has highly corrosion resistance and lower coefficient of resistance than other heater element alloys. Nichrome 80 is the most ideal resistance heating alloy.

Equivalent Grades

TrademarksGBJISASTMUNSDINW-Nr.ГОСТBSNFSS
Nikrothal 80
Nichrome 80
Nichrome V
Chromel A
Alloy A
Tophet A
Resistohm 80
Stablohm 650
MWS 650
Gilphy 80
Cr20Ni80NCHW1
NCHRW1
Nichrome 80
NiCr80 20
N06003NiCr 80 202.4869Х20Н80
Х20Н80-Н

Specifications

GB/T 1234-1995 (CN); JIS C2520-199(JP); ASTM B344-01(USA); DIN 17470-1984(GER); GOST 10994 & GOST 12766/1-1990 (RU)

Product Forms

Wire, Bar, Strip, Sheet, Tube, Mesh, Conveyor belt, Radiant tube heater

Chemical Composition, %

AlloyCSiMnPSCrNiAlFe
Nichrome 80≤0.080.75~1.60≤0.60≤0.02≤0.01520.0~23.0Bal≤0.50≤1.0

Note: Х20Н80-Н (Add Zr:0.2-0.5%)

Mechanical Properties (RT, Annealed)

Tensile Strength, Rm/MPaElongation, A/%
Dia. >3.00mm (for wire)Dia. 0.10~3.00mm (for wire) and Th. >0.20 (for strip)
≥650≥25≥20

Physical Properties

Max Working Temperature, ℃Melting Point, ℃Density, g/cm3Resistivity, μΩ·m, 20℃Specific Heat, J/g·℃Thermal Conductivity, KJ/m·h·℃Average Coefficient of Linear Expansion, α×10-6/℃ (20~1000℃)Micrographic StructureMagnetic Properties
120014008.41.090.4460.318.0AustenitieNon-Magnetic

Life Test

Test Temperature, ℃Continuous Service Time Hours, ℃
1200≥80

Temperature Factor of Resistivity

20℃100℃200℃300℃400℃500℃600℃700℃800℃900℃1000℃1100℃1200℃1300℃
1.0001.0061.0121.0181.0251.0261.0181.0101.0081.0101.0141.0211.025

Features

  • Great ductility
  • Excellent workability and weldability under high temperature
  • High and stable resistivity
  • Surface oxidation resistance
  • Sufficient high temperature strength
  • Working temperature up 1200℃

Applications

Nichrome 80 is used for electric heating elements in home appliances and industrial furnaces.

  • Electrical parts and electronic components
  • Electric heating elements (home & industrial use)
  • Industrial furnaces up to 1200℃
  • Heating cables, mats and cords
  • Flat irons
  • Ironing machines
  • Water heaters
  • Plastic moulding dies
  • Soldering irons
  • Metal sheathed tubular elements and cartridge elements

Based on client’s requirement, we have succeeded in producing Х20Н80-Н. Through adding Zr element around 0.2-0.5%, it can increase alloy working temperature, and strength. It is mostly used in high temperature industry furnace.