Nichrome Alloy Wire

Nichrome Wire Products

Nichrome 80/20 & Nichrome 60/16 Round Wire / Strip Ribbons

Round Strip/Ribbon

Sizes Available: 0.05 - 5.0 mm / 44 - 5 AWG

Insulation: Polyimide, Polyurethane, Formvar. HML 240

Extrusion: FEP, PFA-260, TFE in tape wrap form.

 

Sizes Available: Width: 0.114" - 0.500" / 1mm - 280mm / 4 - 50 AWG

Thickness: 0.0043" - 0.030" / 0.01mm to 7 mm

Insulation: Polyimide, Polyurethane, Formvar. HML 240

Extrusion: FEP, PFA-260, TFE in tape wrap form.

 

Nichrome Wire 80/20 - Also called Alloy 650, A Resistance Alloy used in electrical heating application. It is recommended for use in dry air applications up to 2150 degrees F with good hot strength. It is an alloy of nickel and chromium with high electrical resistance; used for resistance heating elements. Nichrome 80/20 is an ideal material, because it has relatively high resistance and forms an adherent layer of chromium oxide when it is heated for the first time. Material beneath the wire will not oxidize, preventing the wire from breaking or burning out.

Applications:

80/20 Composition:

Chromium: 19.50%  
Silicon: 1.25%
Iron: 0.50%
Manganese: 0.40%
Nickel:
Balance
Typical Mechanical Properties for Annealed Wire
Ultimate Tensile Strength   105,000 PSI      
Yeild Strength (.2% offset) 50,000 PSI  
Elongation in 2" * 35%      
Modulus of Elasticity (Tension) 31 x 10⁶ PSI      
* The measured elongation will be less as thickness decreases to .002" and less
Physical Properties
Density   0.304 lbs/cu/in      
Melting Point (approx.) 1400°C  
Electrical Resistivity @ RT 108 Micromùcm      
Temperature Coefficient  100 ppm / °C  
of Resistivity (25° to 105°C)  
Thermal Expansion Coefficient 13.4 x 10⁶ / °C      
 (20° to 100°C)      
Thermal Conductivity @ 100°C 15.0 W/mùK  
Magnetic Attraction None      


Nichrome Wire 62/16 - Also called Alloy 675, can be used at operating temperatures up to 1000°C. Nichrome 62/16 has excellent hot strength, good oxidation properties and very good formability. Nichrome 62/16 has good corrosion resistance except in sulphur containing atmospheres and certain controlled atmospheres. Nichrome 62/16 can be used as electric heating elements in domestic appliances and furnace applications up to high temperature.

Applications:

60/16 Composition:

Chromium: 16.0%  
Iron: Balance
Silicone   1.5%
Nickel: 60.0%
Typical Mechanical Properties for Annealed Wire
Ultimate Tensile Strength   200,000 lb/in² Hard Drawn  
Specific Resistance 675 Ohms per Circular Mil foot at 68°F
Elongation in 2" * 20%      
Specific Gravity 8.25%  
Physical Properties
Density   0.2979 lbs/cu/in      
Melting Point (approx.) 1350°C  
Electrical Resistivity @ RT 112 Micromùcm      
Temperature Coefficient  0.00015 Ohms  
of Resistivity (20° to 500°C)  
Linear Expansion Coefficient 17.5 x 10⁶ / °C      
 (20° to 1000°C)      
Thermal Conductivity @ 100°C 0.132 W/cm/°C  
Magnetic Attraction   Para