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Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments

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Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments

Brand Name : Victory

Model Number : Cr30Ni70

Certification : CE

Place of Origin : China

MOQ : 5

Payment Terms : L/C, T/T, Western Union, MoneyGram

Supply Ability : 300 tons per month

Delivery Time : 5-21 days

Packaging Details : Spool package with Carton box, Coil package with polybag for Resistance wire

Max. continuous service temp. of element(ºC) : 1100

Melting Point : 1390

Resistivity : 1.04±0.05

Density(g/cm3) : 7.9

Thermal conductivity (KJ/m·h·ºC) : 43.8

Coefficient of lines expansion(α×10-6/ºC) : 19

Melting point approx.( ºC) : 1390

Elongation at rupture(%) : >20

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Cr30Ni70 Alloy Wire: Superior Resistance and Stability in Extreme Thermal Environments

NiCr Series

Cr30Ni70 alloy wire is a high-performance nickel-chromium alloy resistance heating material, mainly composed of 70% nickel and 30% chromium, with excellent high temperature stability and corrosion resistance. Its melting point is about 1370-1410℃, the maximum continuous working temperature can reach 1250℃, and the density is 8.1-8.2 g/cm³. The resistivity of this alloy wire is about 1.08-1.12 μΩ·m at 20℃, the tensile strength is 650-900 MPa, and the elongation is greater than 25%, showing good mechanical properties.

This alloy wire is widely used in industrial furnaces, electric heating elements, vacuum furnaces, high-temperature heat treatment equipment and other fields, especially suitable for manufacturing high-power and high-temperature heating elements. Its excellent performance makes it an ideal material for high-end applications such as aerospace, metallurgy, energy and laboratory equipment.

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
Meltiing point ℃ 1400 1400 1380 1390 1390 1390
Density g/cm3 8.7 8.4 8.1 8.2 7.9 7.9
Resistivity at 20℃((μΩ·m) 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 0.44 0.461 0.494 0.5 0.5
J/g.℃
Thermal conductivity 60.3 45.2 45.2 43.8 43.8
KJ/m.h℃
Coefficient of lines expansion 18 17 17 19 19
a×10-6/
(20~1000℃)
Micrographic structure Austenite Austenite Austenite Austenite Austenite
Magnetic properties Non-magnetic Non-magnetic Non-magnetic Weak magnetic Weak magnetic
Micrographic structure Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite
Magnetic properties Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

Form Specification
Wire Diameter=0.025mm~8mm
Flat wire Width=0.40~6.0mm Thick=0.03~0.50mm
Strip width=8~250mm Thick=0.05~3.0mm
Bar Diameter=8~100mm Long=50~1000

Size Range
Wire
dia 0.03-7.5mm
 Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments
dia 8.0-12.0mm
 Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments
Ribbon
(0.05-0.35)*(0.5-6.0)mm
 Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments
Strip
(0.50-2.5)*(5-180)mm
 Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments
Rod
8-50mm
 Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments

  • Application
  1. Aerospace: Cr30Ni70 alloy is widely used in the manufacture of turbine blades and combustion chamber components of aircraft engines due to its excellent high-temperature oxidation resistance and strength.
  2. Energy: In high-temperature and high-pressure equipment such as nuclear power plants and gas turbines, Cr30Ni70 alloy can be used to manufacture heat exchangers, heating elements and high-temperature pipes.
  3. High-temperature resistance elements: Cr30Ni70 alloy has stable resistivity and good thermal stability, and is suitable for the manufacture of high-temperature resistance elements such as electric heaters, thermocouples, and resistance wires.
  4. Precision instruments and sensors: Due to its small and stable resistivity change, Cr30Ni70 alloy is used to manufacture precision measuring equipment such as temperature sensors and pressure sensors.
  5. Metallurgy and chemical industry: In high-temperature environments such as metallurgical furnaces and chemical furnaces, Cr30Ni70 alloy can be used to manufacture heat-resistant structural parts such as furnace shafts and burner racks.
  • Q&A

What material is Cr30Ni70 wire?
Cr30Ni70 wire is a nickel-chromium alloy heating wire containing 70% nickel and 30% chromium.
What is its main use?
It is mainly used for high-temperature electric heating elements such as electric furnaces, heat treatment equipment, etc.
What are its advantages?
It has high-temperature oxidation resistance, high resistivity and good mechanical properties.
What is its maximum operating temperature?
The maximum operating temperature can reach 1200℃.

Cr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal EnvironmentsCr30Ni70 Alloy Wire Superior Resistance And Stability In Extreme Thermal Environments


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