涵盖镍基合金、电热合金、耐蚀合金及多种特种合金材料
Cr15Ni60镍铬/镍铬铁电热合金具有高电阻率、良好抗氧化性能、高温强度、成形性能和焊接性能,适用于冶金设备、家用电器、机械设备中的发热元件和电阻元件。
材料在高温环境下具备良好的组织稳定性和加工成形性,可用于圆丝、扁丝、带材等多种电热元件形式。
镍铬合金技术参数
性能/类型 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 | |
主要成分(%) | Ni | 余量Bal | REST | 55.0~61.0 | 34.0~37.0 | 30.0~34.0 |
Cr | 22.0~23.0 | 28.0~31.0 | 15.0~18.0 | 18.0~21.0 | 18.0~21.0 | |
Fe | ≤1.0 | ≤1.0 | 余量Bal | 余量Bal | REST | |
最高连续使用温度(℃) | 1200 | 1100 | 1000 | 1000 | 1000 | |
熔点(℃) | 1400 | 1380 | 1390 | 1390 | 1390 | |
Density(g/cm3) | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 | |
Resistivity(µΩ.m,20℃) | 1.09±0.05 | 1.18±0.05 | 1.11±0.05 | 1.04±0.05 | 1.04±0.05 | |
Elongation(%) | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | |
Specific heat capacity at 20℃(J/g.℃) | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 | |
Thermal conductivity(kJ/m.h℃) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
Line expansion coefficient(a×10-6/℃(20~1000℃)) | 18 | 17 | 17 | 19 | 19 | |
Micro structure | Austenite | Austenite | Austenite | Austenite | Austenite | |
Magnetic properties | Non-magnetic | Non-magnetic | Non-magnetic | Non-magnetic | Non-magnetic | |
镍铬圆丝直径及性能参数
mm | mm² | cm²/m | Cr20Ni80 | Cr15Ni60 | Cr20Ni35,CrNi30 | |||
kg/m | Ω/m,20℃ | kg/m | Ω/m,20℃ | kg/m | Ω/m,20℃ | |||
0.1 | 0.007854 | 3.142 | 0.00006597 | 138.8 | 0.0000644 | 142.6 | 0.0000616 | 132.4 |
0.12 | 0.01131 | 3.77 | 0.000095 | 96.38 | 0.00009274 | 99.03 | 0.0000892 | 91.96 |
0.15 | 0.01767 | 4.712 | 0.0001484 | 61.68 | 0.0001449 | 63.38 | 0.00014 | 58.85 |
0.17 | 0.0227 | 5.341 | 0.0001907 | 48.02 | 0.0001861 | 49.34 | 0.000179 | 45.82 |
0.19 | 0.02835 | 5.969 | 0.0002382 | 38.44 | 0.0002325 | 39.5 | 0.000224 | 36.86 |
0.21 | 0.03464 | 6.597 | 0.0002909 | 31.47 | 0.000284 | 32.34 | 0.0003 | 27.36 |
0.25 | 0.04909 | 7.854 | 0.0004809 | 22.21 | 0.0004025 | 22.82 | 0.000388 | 21.19 |
0.27 | 0.05726 | 8.482 | 0.0005548 | 19.04 | 0.0004695 | 19.56 | 0.000487 | 16.89 |
0.29 | 0.06605 | 9.111 | 0.0004809 | 16.5 | 0.0005416 | 16.96 | 0.000558 | 14.71 |
0.31 | 0.07548 | 9.739 | 0.000634 | 14.44 | 0.0006189 | 14.84 | 0.000635 | 12.93 |
0.35 | 0.09621 | 11 | 0.0008082 | 11.33 | 0.0007889 | 11.64 | 0.00076 | 10.81 |
0.4 | 0.1257 | 12.57 | 0.001056 | 8.674 | 0.00103 | 8.913 | 0.000993 | 8.276 |
0.45 | 0.159 | 14.14 | 0.001339 | 6.835 | 0.001304 | 7.042 | 0.00126 | 6.539 |
0.5 | 0.1963 | 15.71 | 0.001469 | 5.551 | 0.00161 | 5.704 | 0.00155 | 5.297 |
0.6 | 0.2827 | 18.85 | 0.002375 | 3.855 | 0.002318 | 3.961 | 0.00224 | 3.749 |
0.7 | 0.3848 | 21.99 | 0.003233 | 2.832 | 0.003156 | 2.91 | 0.00304 | 2.754 |
0.8 | 0.5027 | 25.13 | 0.004222 | 2.168 | 0.004122 | 2.228 | 0.00397 | 2.109 |
0.9 | 0.6362 | 28.27 | 0.005344 | 1.713 | 0.005217 | 1.761 | 0.00503 | 1.666 |
1.00 | 0.7854 | 31.42 | 0.006597 | 1.388 | 0.00644 | 1.426 | 0.0062 | 1.35 |
1.20 | 1.131 | 37.7 | 0.0095 | 0.9638 | 0.009274 | 0.9903 | 0.00894 | 0.9196 |
1.40 | 1.539 | 43.98 | 0.01293 | 0.7081 | 0.01262 | 0.7276 | 0.01216 | 0.6756 |
1.60 | 2.011 | 50.27 | 0.01689 | 0.5421 | 0.1649 | 0.557 | 0.01588 | 0.5173 |
1.80 | 2.545 | 56.55 | 0.02138 | 0.4283 | 0.02087 | 0.4401 | 0.02006 | 0.4087 |
2.00 | 3.142 | 62.83 | 0.02639 | 0.347 | 0.02576 | 0.3565 | 0.02408 | 0.331 |
2.20 | 3.801 | 69.12 | 0.03139 | 0.2867 | 0.03117 | 0.2946 | 0.03002 | 0.2736 |
2.50 | 3.976 | 70.69 | 0.0334 | 0.2741 | 0.0326 | 0.2817 | 0.04195 | 0.2109 |
2.80 | 6.158 | 87.96 | 0.05172 | 0.177 | 0.05049 | 0.1819 | 0.04866 | 0.1689 |
3.00 | 7.069 | 94.25 | 0.05938 | 0.1542 | 0.05796 | 0.1584 | 0.05587 | 0.1471 |
3.50 | 9.621 | 110 | 0.08082 | 0.1133 | 0.07889 | 0.1164 | 0.07599 | 0.1081 |
4.00 | 12.57 | 125.7 | 0.1056 | 0.08674 | 0.103 | 0.08913 | 0.0993 | 0.08276 |
4.50 | 15.9 | 141.4 | 0.1336 | 0.06853 | 0.1304 | 0.07042 | 0.1256 | 0.06539 |
5.00 | 19.63 | 157.1 | 0.1649 | 0.05551 | 0.161 | 0.05704 | 0.1551 | 0.05297 |
5.50 | 23.76 | 172.8 | 0.1996 | 0.04588 | 0.1948 | 0.04714 | 0.188 | 0.04462 |
6.00 | 28.27 | 188.5 | 0.2375 | 0.03855 | 0.2318 | 0.03961 | 0.2236 | 0.03749 |
6.50 | 33.18 | 204.2 | 0.2787 | 0.03285 | 0.2721 | 0.03375 | 0.2623 | 0.03194 |
7.00 | 38.48 | 219.9 | 0.3233 | 0.02832 | 0.3156 | 0.0291 | 0.3041 | 0.02754 |