Alloy Nomenclature
/Performance |
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 |
Resistivity at 20oC
(μΩ·m)
|
1.09 |
1.18 |
1.12 |
1.0 |
1.04 |
Density
(g/cm3)
|
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
|
austenite |
austenite |
austenite |
austenite |
austenite |
Magnetic
properties
|
nonmagnetic |
nonmagnetic |
nonmagnetic |
Weak magnetic |
Weak magnetic |
