The highest working temperature up to 1200 degree.
Higher strength than Fe-Cr-Al under high temperature
Not easy to deform under high temperature
Good plasticity and high emissivity,
Non-magnetic
Strong corrosion resistance,
Technical Index
|
Cr20Ni80
|
Cr30Ni70
|
Cr15Ni60
|
Cr20Ni35
|
Cr20Ni30
|
||
|
Main
chemical Composition ％ |
Ni
|
Rest
|
Rest
|
55.0-61.0
|
34.0-37.0
|
30.0-34.0
|
|
Cr
|
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
|
|
|
Max.continuous
service temp.of element (℃) |
1200
|
1250
|
1150
|
1100
|
1100
|
|
|
Melting point
(approx.) ℃ |
1400
|
1380
|
1390
|
1390
|
1390
|
|
|
Density
g/cm3 |
8.40
|
8.10
|
8.20
|
7.90
|
7.90
|
|
|
Resistivity
μΩ.m,20℃ |
1.09
|
1.18
|
1.12
|
1.0
|
1.04
|
|
|
Elongation
% |
≥20
|
≥20
|
≥20
|
≥20
|
≥20
|
|
|
Thermal
conductivity KJ/m.h.℃ |
60.3
|
45.2
|
45.2
|
43.8
|
43.8
|
|
|
Coefficient
of linear expansion α×10-6/℃ |
18.0
|
17.0
|
17.0
|
19.0
|
19.0
|
|
|
Micrographic
structure |
austenite
|
austenite
|
austenite
|
austenite
|
austenite
|
|
|
Magnetic
properties |
non
magnetic |
non
magnetic |
non
magnetic |
weak
magnetic |
weak
magnetic |
|
