PRODUCTS

CATEGORIES

Share to:

Cr20Ni30 Nickel-Chromium alloy wire

The Nickel-Chromium alloy wires are widely used as the high resistance alloy for electrical heating and wire-wound resistors in metallurgical industry, chemical industry and electrical industry, etc.
This alloy wire has higher electrical resistance coefficient, good anti-oxidation and anti-corrosion performance, and it also has good mechanical workability and weldability, with a high strength at high temperature
Availability:
Quantity:
  • Cr20Ni30
  • REOU
The Nickel-Chromium alloy wires are widely used as the high resistance alloy for electrical heating and wire-wound resistors in metallurgical industry,chemical industry and electrical industry, etc.    This alloy wire has higher electrical resistance coefficient, good anti-oxidation and anti-corrosion performance, and it also has good mechanical workability and weldability, with a high strength at high temperature.
Main characteristics of Ni-Cr and Ni-Cr-Fe electric heating alloys

Type
Cr30Ni70
Cr15Ni60
Cr20Ni35
Cr20Ni80
Cr20Ni30
Cr25Ni20
Performance







Main Chemical composition
Ni
Rest
55.0-61.0
34.0-37.0
Rest
30.0-30.4
19.0-22.0
Cr
28.0-31.0
 15.0-18.0
18.0-21.0
20.0-23.0
 18.0-21.0
 24.0-26.0
Fe
≤ 1.0
Rest
Rest
≤ 1.0
Rest
Rest
Max. continuous service temp. of element
1250
1150
1100
1200
1100
1050
Resistivity at 20℃
( μΩ m)
1.18±0.05
1.12±0.05
1.04±0.05
1.09±0.05
1.06±0.05
0.95±0.05
 Density(g/cm³)
8.10
8.20
7.90
8.40
7.90
7.15
Thermal conductivity
(KJ/m h ℃)
45.2
45.2
43.5
60.3
43.8
43.8
 Coefficient of lines expansion(αx10-6/℃ )
17.0
17.0
19.0
18.0
19.0
19.0
 Melting point(αpprox.)
(℃ )
1380
1390
1390
1400
1390
1400
 Elongation at rupture(%)
> 20
> 20
> 20
> 20
> 20
> 20
 Micrographic structure
austenite
austenite
austenite
austenite
austenite
austenite
 Magnetic properties
nonmagnetic
Low-magnetic
Low-magnetic
nonmagnetic
Low-magnetic
nonmagnetic
Note:The various grades of electric resistance alloy material are blended with the amount of rare earth, titanium and other trace elements, to improve the processing performance and extend the period of the uselife.  


Quick Links

Contact Us

  +86-18261168660 
  +86-18261168660 
  0510-86650029 
  No.7, Nanqiu Rd., Huangtu Indutrial Park, Jiangyin, Jiangsu
Please Enter Your Information

Copyright © 2020 Jiangyin Chengxin Alloy Material Co.,Ltd