直径(mm)
20o C 每千克长度20o C 每千克长度20o C 每千克长度每米电阻(m/kg)
每米电阻(m/kg)
每米电阻(m/kg)
(Ω/m)
(Ω/m)(Ω/m)0.1159.217206180.817933194.8179330.12110.511949125.612453135.3124530.10.1570.7764780.4797080.679700.120.1755.1595462.6620567.462050.150.1944.1476650.149685449680.170.2136.1390141.01406644.240660.190.2525.5275328.9287031.228700.210.2721.8236024.8246026.724600.250.2918.9204621.5213223.221320.270.3116.6179018.8186620.318660.290.3513140514.8146415.914640.310.49.95107511.3112112.1911210.350.457.868508.938869.628860.40.5 6.376887.237177.797170.450.6 4.42480 5.02498 5.414980.50.7 3.25351 3.69366 3.983660.60.8 2.49269 2.83280 3.042800.70.9 1.96212 2.23221 2.412210.81 1.59172 1.808179.5 1.95179.50.91.2 1.11119 1.256124.5 1.35124.511.40.81287.80.92291.50.99491.5 1.21.60.62267.20.70670.10.76170.1 1.41.80.49153.10.55855.50.60155.5 1.620.398430.45244.80.48744.8 1.82.20.32935.50.374370.4023722.50.25527.50.28928.70.31228.7 2.22.80.20321.90.23122.90.24822.9 2.530.176819.10.20119.920.21619.92 2.83.50.1299140.147614.640.15914.64340.099510.750.11311.210.121811.21 3.54.50.07868.50.08938.860.09628.86450.0637 6.880.07237.170.07797.17 4.55.50.0526 5.690.0598 5.920.0644 5.92560.0442 4.780.0502 4.980.0541 4.98 5.56.50.0377 4.070.0428 4.240.0461 4.2467
0.0325
3.51
0.0369
3.66
0.0398
3.66
6.57
μΩ m 1.42±0.07
1Cr13Al40Cr25Al5、0Cr21Al6
0Cr27Al7M o 2电阻率铁铬铝电热合金长度、电阻换算表(二）
μΩ m 1.25±0.07
电阻率μΩ m 1.42±0.07
电阻率直径(mm)
性能
元件最高熔点使用温度(近似)合金牌号（o C）( o C)20o C 每千克长度20o C 每千克长度Cr20ni8012001400每米电阻(m/kg)每米电阻(m/kg)
Cr30ni7012501380(Ω/m)
(Ω/m)Cr15ni60
115013900.0557060661――――――Cr20ni35110013900.0639642125――――――Cr20ni30110013900.0729130949――――――1cr13al495014500.0822323695――――――Ocr25al5125015000.0917618722――――――Ocr23al5125015000.1138.7815558133.316233Ocr21al6125015000.1296.381052692111481cr20al3110015000.1561.68673758.887142Ocr21al6nb 135015100.1748.02524545.845586Ocr27al7mo2
1400
15207
0.1938.44419936.6944640.2131.47343730.135580.2522.21242521.1925780.2719.04207918.1722090.2916.5180215.7519150.3114.44157713.781676宽×厚0.3511.33123710.811315(mm)
0.48.679478.28100720o C 0.45 6.85749 6.54796每米电阻(Ω
/m)
0.5 5.55606 5.36440.6 4.09421 3.684470.08×0.2
88.750.7 2.94310 2.73280.444.370.8 2.25237 2.072510.629.580.9 1.78187.1 1.6351990.822.181 1.44151.7 1.32161117.751.20.999105.30.92111 1.214.791.40.73477.40.67582.24 1.511.831.60.56259.20.51762.970.1×0.2711.80.44446.70.40849.840.435.520.3637.90.33140.310.623.62.20.29731.30.273733.310.817.752.50.2324.30.211925.78114.22.80.18419.340.168920.54 1.59.4630.1616.840.147217.927.13.50.11812.380.108113.163 4.7340.09079.470.082810.070.15×0.2
47.354.5
0.0717
7.49
0.0654
8
0.4
23.67
镍铬电热合金长度、电阻换算表
直径(mm)
Cr20ni80，Cr15ni60
Cr20ni35，Cr20ni30
电阻率
μΩ m 1.09~1.20±0.05电阻率
μΩ m 1.04-1.06±0.05
电
0Cr25Al5、OC
常用
电阻率1.42±0.06μΩ·m
50.0581 6.060.0529 6.450.615.78 5.50.048 5.010.0437 5.320.811.83 60.0403 4.210.0381 4.4719.47 6.50.0344 3.950.0313 3.8 1.5 6.31 70.0296 3.090.027 3.32 4.735
3 3.15
0.2×0.417.75
0.611.83
0.88.87
17.1
1.5 4.73
2 3.55
3 2.36
0.3×0.8 5.91
1 4.73
1.5 3.15
2 2.36
3 1.577
4 1.18
50.94
0.4×0.6 5.92
0.8 4.43
1 3.55
1.5
2.36
2 1.775
3 1.18
40.88
50.71
60.59
0.5×1.5 1.89
2 1.42
30.95
40.71
50.59
60.47
70.405
20o C 每千克度20o C 每千克长度20o C 每千克长度每米电阻(Ω
/m)(m/kg)
每米电阻(m/kg)
每米电阻(m/kg)
(Ω/m)
(Ω/m)173.117683156.617452184.617933119.512206108.812033128.21245376.4779369.6769282.1797059.5607654.2598863.9620547.5485443.4478551.1496835.5398635.5393741.9406627.5280925.1277029.5287021.9240721.5237525246019.1208718.6205822213116.8182716.3180219.2186614143412.8141415.1146410.710979.79108211.5411218.498677.738559.128866.88703 6.266947.387174.77496 4.35480 5.134983.51358 3.2353 3.773662.69274 2.45270 2.882802.12217 1.93213 2.282211.72176 1.57173 1.85179.51.194122 1.09120 1.282124.50.87789.60.79988.40.94291.50.67268.60.61267.70.72170.10.53254.30.48353.560.5755.50.4343.90.39243.330.46244.80.35536.30.32435.80.381370.27528.10.25127.710.29528.70.21922.40.222.080.23522.90.19119.50.17419.250.20519.920.1414.30.127814.140.15114.640.107110.097910.820.115411.210.08498.670.07738.550.09128.860.06887.030.0626 6.930.07387.170.0568 5.80.0518 5.720.061 5.920.0477 4.880.0435 4.810.0513 4.980.0407 4.150.0371 4.090.0437 4.240.0351
3.58
0.032
3.53
0.0377
3.66
电阻率μΩ m 1.45±0.07
铁铬铝电热合金长度、电阻换算表(一）
0Cr23Al50Cr21Al4Cr21Al6Nb 电阻率μΩ m 1.35±0.06电阻率μΩ m 1.23±0.06
密度
电阻率比热导热系数线彭胀系数(20o )C
KJ/m．
(20～1000o C)磁性
(g/cm 3
)μΩ ．m j/g．o
C h．o
C (α×10-6o C
/)8.4 1.090.4460.318
非磁性8.1 1.180.46145.217非磁性8.2 1.120.49445.217非磁性7.9 1.040.543.819弱磁性7.9 1.040.543.819弱磁性7.4 1.250.4952.715.4磁性7.1 1.420.49446.116磁性7.25 1.350.4660.215磁性7.16 1.420.5263.214.7磁性7.35 1.230.4946.913.5磁性7.1 1.430.49446.116磁性7.1
1.53
0.494
45.2
16
磁性
每千克长度20o C 每千克长度20o C 每千克长度(m/kg)
每米电阻(m/kg)
每米电阻(m/kg)
(Ω/m)
(Ω/m)880376.878446707440440138.434223353720293425.62281523.32480220019.22211117.51860176015.371689141488146712.811407.711.61240117410.2511269.3992704261.56757565952352130.753378282976234720.5225218.61984176015.371689141488140112.3135111.21190.59398.29007.46793704 6.15676 5.6595469.5 4.1450 3.73396.8469541450537.3539682347
20.5
2252
18.67
1984
电热合金主要物理性能(参考件)
5、OCR21AL60Cr21Al4、1CR13AL4
Cr20Ni80、Cr15Ni60
电阻率,
1.09~1.14±0.05μΩ·m
常用小扁丝规格、长度、电阻换算表
电阻率,0.06μΩ·m
电阻率,1.23±0.06μΩ·m
156513.66150212.451322.7 117410.2511269.33992 9398.29017.47793.6 626 5.46600.6 4.98529 469.5 4.14505 3.73396.1 313 2.73300.3 2.49264.5 176015.371689141488 117410.2511269.3992 8807.688447744 704 6.15675.7 5.6595 469.5 4.1450 3.73396 352 3.07337.85 2.8297 234 2.05225.3 1.86198 586.87 5.12563.1 4.6496 469.5 4.1450.47 3.7398 313 2.73300.3 2.49265.8 234 2.05225.2 1.86199 156 1.36150.16 1.24132.9 117 1.021120.9399 940.82900.7579 568 5.12563 4.66496 440 3.84422 3.5372 352 3.07337 2.8297 234 2.05225 1.86198 176 1.53169 1.4149 117 1.021120.9399 880.77840.774 700.615670.5659 580.512560.4749 187 1.64180 1.49158 140 1.23135 1.12119 940.82900.7579 700.615670.5659 560.492540.44847 470.41450.37339 400.351380.3234