金川专业优供台车炉用接触器 台车接触器 工业电炉

                    合金牌号                 

                    C                 

                    P                 

                    S                 

                    Mn                 

                    Si                 

                    Cr                 

                    Ni                 

                    Al                 

                    Fe                 

                    其他                 

                    不大于                 

                    Cr20Ni80                 

                    0.08                 

                    0.020                 

                    0.015                 

                    0.60                 

                    0.75～1.60                 

                    20.0～23.0                 

                    余                 

                    ≤0.50                 

                    ≤1.0                 

                    —                 

                    Cr30Ni70                 

                    0.08                 

                    0.020                 

                    0.015                 

                    0.60                 

                    0.75～1.60                 

                    28.0～31.0                 

                    余                 

                    ≤0.50                 

                    ≤1.0                 

                    —                 

                    Cr15Ni60                 

                    0.08                 

                    0.020                 

                    0.015                 

                    0.60                 

                    0.75～1.60                 

                    15.0～18.0                 

                    55.0～61.0                 

                    ≤0.50                 

                    余                 

                    —                 

                    Cr20Ni35                 

                    0.08                 

                    0.020                 

                    0.015                 

                    1.00                 

                    1.00～3.00                 

                    18.0～21.0                 

                    34.0～37.0                 

                    —                 

                    余                 

                    —                 

                    Cr20Ni30                 

                    0.08                 

                    0.020                 

                    0.015                 

                    1.00                 

                    1.00～2.00                 

                    18.0～21.0                 

                    30.0～34.0                 

                    —                 

                    余                 

                    —                 

                    牌号                 

                    Cr20Ni80                 

                    Cr30Ni70                 

                    Cr15Ni60                 

                    Cr20Ni35                 

                    Cr20Ni30                 

                    性能                 

                    主要化学成分%                 

                    Ni                 

                    余量                 

                    余量                 

                    55-61                 

                    32-36                 

                    Cr                 

                    20.0～23.0                 

                    28-31                 

                    15-18                 

                    18-21                 

                    18-21                 

                    Fe                 

                    ≤1.0                 

                    元件最高使用温度℃                 

                    1200                 

                    1250                 

                    1150                 

                    1050                 

                    1050                 

                    熔点℃                 

                    1400                 

                    1400                 

                    1400                 

                    1400                 

                    1400                 

                    密度g/cm3                 

                    8.40                 

                    8.1                 

                    8.2                 

                    7.9                 

                    7.9                 

                    电阻率μΩ·m，20℃                 

                    1.09±0.05                 

                    1.18±0.05                 

                    1.12±0.05                 

                    1.04±0.05                 

                    1.04±0.05                 

                    延伸率%                 

                    ≥20                 

                    ≥20                 

                    ≥20                 

                    ≥20                 

                    ≥20                 

                    比热J/g.℃                 

                    0.440                 

                    0.44                 

                    0.44                 

                    0.44                 

                    0.44                 

                    导热系数KJ/m.h℃                 

                    60.3                 

                    45.2                 

                    45.2                 

                    43.8                 

                    43.8                 

                    线胀系数a×10-6/℃（20～1000℃）                 

                    18.0                 

                    17.0                 

                    17.0                 

                    19.0                 

                    19.0                 

                    显微组织                 

                    奥氏体                 

                    磁性                 

                    非磁性