|
牌号 性能
|
Cr20Ni80 |
Cr30Ni70 |
Cr15Ni60 |
Cr20Ni35 |
Cr20Ni30 | |
|
主要化学成份 |
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 | |
|
元件最高使用温度（ºC） |
1200 |
1250 |
1150 |
1100 |
1100 | |
|
电阻率20ºC (μΩ·m) |
1.09 |
1.18 |
1.12 |
1.0 |
1.04 | |
|
密度(g/cm3) |
8.40 |
8.10 |
8.20 |
7.90 |
7.90 | |
|
导热系数(KJ/m·h·ºC) |
60.3 |
45.2 |
45.2 |
43.8 |
43.8 | |
|
线胀系数(α×10-6/ºC) |
18.0 |
17.0 |
17.0 |
19.0 |
19.0 | |
|
熔点约值( ºC) |
1400 |
1380 |
1390 |
1390 |
1390 | |
|
延伸率(%) |
>20 |
>20 |
>20 |
>20 |
>20 | |
|
显微组织 |
austenite |
austenite |
austenite |
austenite |
austenite | |
|
磁性 |
nonmagnetic |
nonmagnetic |
nonmagnetic |
Weak magnetic |
Weak magnetic | |