牌号/性能 |
Cr20Ni80 |
Cr30Ni70 |
Cr15Ni60 |
Cr20Ni35 |
Cr20Ni30 |
主要化学成分 |
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 |
|
