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Cr20Ni30 Resistance Wire

Description

Round Wire: 0.05mm-10mm

Flat Wire(Ribbon): Thickness 0.1mm-1.0mm, width 0.5mm-5.0mm

Other sizes are available upon your request.


Carbon Content: Low Carbon
Condition: Bright, Annealed
Special Use: for Industrial Furnace and Heaters

Transport Package: in Coils,Paper or Woven Bags, Wooden case


Main Characteristics of Ni-Cr and Ni-Cr-Fe Electric Heating Alloys


        Alloy Nomenclature
Performance

Cr20Ni80
Cr30Ni70  
Cr15Ni60
Cr20Ni35
Cr20Ni30
Main Chemical Composition
Ni
Rest
Rest
55-61
34-37
30-34
Cr
20-23
28-31
15-18
18-21
18-21
Fe
≤1.0
≤1.0
Rest
Rest
Rest
Max. continuous
service temp. of element
1200
1250
1150
1100
1100
Resistivity at 20ºC
(μΩ·m)
1.09
1.18
1.12
1.00
1.04
Density (g/cm 3 )
8.40
8.10
8.20
7.90
7.90
Thermal conductivity
(KJ/m·h·ºC)
60.3
45.2
45.2
43.8
43.8
Coefficient of lines
expansion (α×10 -6 /ºC)
18.0
17.0
17.0
19.0 19.0
Melting point
(approx.) (ºC)
1400
1380
1390
1390
1390
Elongation at
rupture (%)
>20
>20
>20
>20
>20
Micrographic structure
Austenlte
Austenlte
Austenlte
Austenlte
Austenlte
Magnetic properties
Nonmagnetic
Nonmagnetic
Weak Magnetic
Weak Magnetic
Weak Magnetic


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