牌号性能Cr15Ni60Cr20Ni80Cr20Ni35OCr25Al5Ocr21Al6NbOcr27Al7Mo2主要化学成份%C不大于0.080.080.100.060.050.05P0.020.020.030.0250.0250.025S0.0150.0150.0250.0250.0250.025Mn0.600.601.000.700.700.20Si0.75~1.600.75~1.601.00~3.00≤0.60≤0.60≤0.60Cr15.00~18.0020.00~23.0018.00~21.0023.00~26.0021.00~23.0026.50~27.80Ni55.00~61.00余34.00~37.00≤0.60≤0.60≤0.60Al≤0.50≤0.50≤0.504.50~6.505.00~7.006.00~7.00Mo/////1.80~2.20Fe余≤1.00余余余余Nb////0.50/使用温度℃115012001100125013501400熔点℃135014001350150015101520密度g/cm8.28.48.07.17.17.1电阻率20℃mm/m1.12±0.061.14±0.051.05±0.051.42±0.071.45±0.071.53±0.07伸长率δ%>20>20>25>12>12>10反复弯曲次数>9>9>9>6>6>6快速寿命试验℃/小时1120/1001175/1001120/1001250/1001350/501350/50磁性非磁性非磁性非磁性磁性磁性磁性标签：镍铬丝电热丝镍铬合金 镍铬丝电热丝镍铬合金丝 上海市电阻丝 上海市电阻丝厂家[镍铬丝 电热丝 镍铬合金丝] 上海市电阻丝厂家上海天器镍铬合金电阻丝