logo

products details

Created with Pixso. Home Created with Pixso. Products Created with Pixso.
NiCr Alloy
Created with Pixso.

Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C

Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C

Brand Name: DLX
Model Number: Ni70Cr30
MOQ: 5
Payment Terms: L/C,T/T,Western Union,MoneyGram
Supply Ability: 500 tons per month
Detail Information
Place of Origin:
China Jiangsu
Certification:
CE,ROHS
Material:
Nickel, Chromium
Nickel(Min):
66%
Resistivity:
1.18+/-0.05
Tensile Strength:
637MPA
Elongtation:
≥20%
Application:
Heating, Resistivity
Condition:
Hard / Soft
Sureface:
Bright, Oxided, Acide
Delivery Time:
7-20 Days
Name:
Resistance Heating Wire
Packaging Details:
Spool package with Carton box, Coil package with polybag
Supply Ability:
500 tons per month
Highlight:

Ni70Cr30 Nichrome Wire

,

Heating Element Nichrome Wire

,

Ni70Cr30 Heating Spiral Wire

Product Description
Nichrome Wire Ni70Cr30 Heating Spiral Wire For Heating Element
Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 0
Ni70Cr30 is an austenitic nickel-chromium alloy suitable for temperature applications up to 1250°C. High chromium content (30% in average) provides excellent durability, especially in furnace applications.
Key Characteristics
  • High resistivity for efficient heating
  • Superior oxidation resistance
  • Maintains good ductility after use
  • Excellent weldability
  • Resistant to "green rot" corrosion
  • Performs well in both reducing and oxidizing atmospheres
Applications
Electric Heating Devices

Widely used in air heaters, electric furnaces, water heaters, and other electric heating devices due to stable heating performance and long service life.

Heating Tubes

Commonly formed into heating tubes for liquid and gas heating applications in heaters, water heaters, and steam generators.

Household Appliances

Used in ovens and microwaves for uniform and rapid heating elements.

Heating Pads and Blankets

Essential component in therapeutic heating pads and electric blankets for warmth and therapy applications.

Automotive Heating

Used in car seat heaters to provide comfortable heating for drivers and passengers.

Nickel-Chromium Alloy Performance Comparison
Performance material Cr10Ni90 Cr20Ni80 Cr30Ni70 Cr15Ni60 Cr20Ni35 Cr20Ni30
Composition Ni 90 Rest Rest 55.0~61.0 34.0~37.0 30.0~34.0
Cr 10 20.0~23.0 28.0~31.0 15.0~18.0 18.0~21.0 18.0~21.0
Fe -- ≤1.0 ≤1.0 Rest Rest Rest
Maximum temperature℃ 1300 1200 1250 1150 1100 1100
Melting point ℃ 1400 1400 1380 1390 1390 1390
Density g/cm3 8.7 8.4 8.1 8.2 7.9 7.9
Resistivity μΩ·m,20℃ -- 1.09±0.05 1.18±0.05 1.12±0.05 1.00±0.05 1.04±0.05
Elongation at rupture ≥20 ≥20 ≥20 ≥20 ≥20 ≥20
Specific heat J/g.℃ -- 0.44 0.461 0.494 0.5 0.5
Thermal conductivity KJ/m.h℃ -- 60.3 45.2 45.2 43.8 43.8
Coefficient of lines expansion a*10-6/(20~1000℃) -- 18 17 17 19 19
Micrographic structure -- Austenite Austenite Austenite Austenite Austenite
Magnetic properties -- Nonmagnetic Nonmagnetic Nonmagnetic Weak magnetic Weak magnetic
Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 1 Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 2
Available Forms and Sizes
Size Range Image
Wire dia 0.03-7.5mm Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 3
dia 8.0-12.0mm Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 4
Ribbon (0.05-0.35)*(0.5-6.0)mm Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 5
Strip (0.50-2.5)*(5-180)mm Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 6
Rod 8-50mm Ni70Cr30 Heating Wire - Austenitic Nickel-Chromium Alloy for Heating Tubes Up to 1250°C 7