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Cronix 70 Nicr Alloy Heating Resistor Wire For Electric Element

Categories Nicr Alloy
Brand Name: Tankii
Model Number: Nickel alloy wire
Certification: ISO 9001
Place of Origin: CHINA
MOQ: 5KG
Payment Terms: L/C, T/T, Western Union
Supply Ability: 2000kg/month
Delivery Time: 5-30 days
Packaging Details: spool,coil
Grade: NiCr Alloy
Application: heating element and resistor
Elongation (≥ %): 20
Ni (min): 70%
Powder or not: Not Powder
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Cronix 70 Nicr Alloy Heating Resistor Wire For Electric Element

NiCr 70/30/Cronix 70/2.4658 1250C heating wire for electric elements


Common trade names NiCr 70/30, Resistohm 70, Nikrothal 70, Chromel 70/30, HAI-NiCr 70, Cronix 70, Inalloy 70, X30H70.

NiCr 70 30 (Werkstoff Nr 2.4658) is an austenitic Nickel-Chromium alloy for use at temperatures up to 1250°C. The 70/30 alloy is characterized by high resistivity and good oxidation resistance. It has good ductility after use and excellent weldability.

Chemical Composition

NickelNi67-70%ChromiumCr29-32%IronFe1.0%SiliconSi1.0-2.5%ManganeseMn1.0%CopperCu0.5%CarbonC0.1%CupperCu0.4%AluminiumAl0.1%

Physical Properties

Density at
Room°C
Electrical
Resistivity
at 20°C
Melting Point
°C
Max Continuous
Operating Temperature
in Air °C
Magnetic Properties
8.2 g/cm31.16(1.19)* microhm-m13801200The Material is Non-Magnetic
*Electrical Resistivity 1.16 Ω mm2/m corresponds to an Oxidized Annealed condition
Electrical Resistivity 1.19 Ω mm2/m corresponds to a Bright Annealed condition

Mechanical Properties

NiCr 80 20
Wire, mm
Yield Strength
Rp0.2 (MPa)
Tensile Strength
Rm (MPa)
Elongation
A %
Hardness Hv
1.042081030180
4.030072530160

Product Forms

ProductSize (mm)Condition of Supply
Wire0.2 – 12.0Bright Annealed
Oxidized
Bar5.0 – 60.0Hot Finished
Cold Finished
Peeled
Bright Turned
Bright Annealed
StripThickness 2.5 – 5.0
Width 20 – 100
Cold Finished
Bright Annealed
RibbonThickness 0.2 – 1.0
Width 2.0 – 4.5
Bright Annealed
Flat Rolled
Stranded Wire2.5 – 3.0Hard
Annealed

Application

NiCr 70-30 is used for corrosion resistant electric heating elements in industrial furnaces with reducing atmospheres. Nickel Chrome 70/30 is highly resistant to oxidation in air. Not recommend for use in MgO sheathed heating elements, or applications using nitrogen or carburizing atmospheres.

  • Electrical parts and electronic components.
  • Electric heating elements (home & industrial use).
  • Industrial furnaces up to 1250°C.
  • Heating cables, mats and cords.

Quality Cronix 70 Nicr Alloy Heating Resistor Wire For Electric Element for sale
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