本公司生產(chǎn)的高電阻電熱合金產(chǎn)品純潔度，低雜質(zhì)電阻率穩(wěn)定，（量度系數(shù)）表面抗氧化性好，共有較高的高溫強(qiáng)度和良好的加工性能及可焊性，鋼種品種規(guī)格齊全。廣泛用于冶金工業(yè)爐業(yè)，家用電器，機(jī)械制造等行業(yè)做發(fā)熱元件和電阻材料。鎳鉻合金扁帶主要技術(shù)性能：牌號(hào)Cr20Ni80Cr30Ni70Cr15Ni60Cr20Ni35Cr20Ni30性能主要化學(xué)成分%Ni余量余量55.0～61.034.0～37.030.0～34.0Cr20.0～23.028.0～31.015.0～18.0
18.0～21.018.0～21.0Fe≤1.0
≤1.0
余量余量余量元件最高使用溫度℃
12001250115011001100熔點(diǎn)℃
14001380139013901390密度g/cm3
8.408.108.207.907.90電阻率μΩ·m，20℃
1.09±0.05
1.18±0.05
1.11±0.05
1.04±0.05
1.04±0.05延伸率%
≥20
≥20
≥20
≥20
≥20比熱J/g.℃
0.440
0.461
0.494
0.500
0.500導(dǎo)熱系數(shù)KJ/m.h℃
60.345.245.243.843.8線脹系數(shù)a×10-6/℃（20～1000℃）
18.017.017.019.019.0顯微組織
奧氏體奧氏體奧氏體奧氏體奧氏體磁性非磁性非磁性非磁性非磁性非磁性鎳鉻合金扁帶設(shè)計(jì)參數(shù):（厚×寬）（mm）截面積
(mm2)0Cr25A150Cr21A14Cr20Ni80電阻率1.42±0.06μΩ·m電阻率1.23±0.06μΩ·m電阻率1.091.14±0.05μΩ·m20℃每米
電阻(Ω/m)每千克
長(zhǎng)度(m/kg)每米重量
(kg/m)20℃每米
電阻(Ω/m)每千克
長(zhǎng)度(m/kg)每米重量
(kg/m)20℃每米
電阻(Ω/m)每千克
長(zhǎng)度(m/kg)每米重量
(kg/m)0.5×10
4.900.290028.740.034790.251027.760.036020.22224.300.041160.8×10
7.840.181117.940.055660.156917.350.057620.13915.180.065861.0×10
9.800.144914.370.069580.125513.880.072030.11512.150.082321.2×10
11.760.120711.980.083500.104611.570.086440.096110.120.098781.5×10
14.700.09669.580.104370.08379.260.108050.07698.100.12352.0×10
19.600.07247.190.139200.06286.940.144060.05776.080.16460.8×1511.760.120711.980.083500.104611.570.086440.092710.120.098781.0×15
14.700.09669.580.104370.08379.260.108050.07698.100.12351.2×15
17.640.08057.980.125240.06977.710.12970.06416.750.14821.5×15
22.050.06446.390.156560.05586.170.162070.05125.400.18522.0×15
29.400.04834.790.208740.04184.630.216090.03844.050.24702.5×15
36.750.03863.830.260930.03353.700.270110.03073.240.30870.8×20
15.680.09068.980.111330.07848.680.115250.06957.590.13171.0×20
19.600.07247.190.139160.06286.940.144060.05776.070.16461.2×20
23.520.06045.990.166990.05235.780.172870.04805.060.19761.5×20
29.400.04834.790.208740.04184.630.216090.03844.050.24702.0×20
39.200.03623.590.278320.03143.470.288120.02883.040.32932.5×20
49.000.02902.870.347900.02512.780.360150.02312.430.41163.0×25
58.800.02412.400.417480.02092.310.432180.01922.020.49361.0×25
24.500.05805.750.173950.05025.550.180080.04614.860.20581.2×2529.400.04834.790.208740.04184.630.216090.03844.050.24701.5×25
36.750.03863.830.260930.03353.700.270110.03073.240.30872.0×25
49.000.02902.870.347900.02512.780.360150.02312.430.41162.5×25
61.250.02322.300.434880.02012.220.450190.01841.940.51453.0×25
73.500.01931.920.521850.01671.850.540230.01541.620.61741.0×30
29.400.04834.790.208740.04184.630.216090.03844.050.24701.2×30
35.280.04023.990.250490.03493.680.259310.03203.370.29641.5×30
44.100.03223.190.313110.02793.090.324140.02562.700.37042.0×30
58.800.02412.400.417480.02092.310.432180.01922.020.49392.5×30
73.500.01931.920.521850.01671.850.540230.01541.620.61743.0×30
88.200.01611.600.626220.1391.540.648270.01281.350.74093.5×30
102.90.01381.370.730590.01201.320.756320.01111.160.86441.0×35
34.300.04144.110.243530.03593.970.252110.03293.470.28811.2×35
41.160.03453.420.292440.02993.310.302530.02752.890.34571.5×35
51.450.02762.740.365300.02392.640.378160.02202.310.43222.0×35
68.600.02072.050.487060.01791.980.504210.01651.740.57622.5×35
85.750.01661.640.608830.01431.590.630260.01321.390.72033.0×35
102.90.01381.370.730590.01201.320.756320.01101.160.86443.5×35
120.10.01181.170.852710.01021.130.882740.00950.991.00881.0×40
39.200.03623.590.278320.03143.470.288120.02883.040.32931.2×40
47.040.03022.990.333980.02612.890.345740.02402.530.39511.5×40
58.800.02412.400.417480.02092.310.432180.01922.020.49392.0×40
78.400.01811.800.556640.01571.740.576240.01441.520.65862.5×40
98.000.01451.440.695800.01261.390.720300.01151.210.82323.0×40
117.60.01211.200.834960.01051.160.864360.00961.010.98783.5×40
137.20.01031.030.974120.00900.991.008420.00830.871.15254.0×40156.80.00910.8981.113280.00780.871.152480.00730.761.1371產(chǎn)品規(guī)格
冷拉合金線材直徑φ1.0-φ10.0mm熱軋合金盤元直徑φ8.0-φ12.0mm冷軋合金帶材厚度0.5-3.5mm冷軋合金帶材寬度5.0-45.0mm熱軋合金帶材厚度3.0-6.0mm熱軋合金帶材寬度12.0-45.0mm繞軸光亮細(xì)絲直徑φ0.1-φ1.0mm繞軸光亮扁絲厚度0.08-1.50mm繞軸光亮扁絲寬度0.5-5.0mm
交貨狀態(tài)
1、供貨狀態(tài)
線材和盤元以白亮或者氧化色軟態(tài)供應(yīng)。
帶材除特殊要求外，一般以退火后的氧化色供應(yīng)。
細(xì)絲和扁絲經(jīng)保護(hù)氣體退火后，以光亮軟態(tài)供應(yīng)。
2、產(chǎn)品包裝
線材和帶材以打包布包扎，成卷供應(yīng)。
細(xì)絲和扁絲，繞軸塑封供應(yīng)。
3、出口產(chǎn)品及用戶有特殊要求者，協(xié)商解決。 

注意事項(xiàng)
1、電爐絲在設(shè)計(jì)時(shí)應(yīng)根據(jù)功率接線方法，合理的表面負(fù)荷，正確選用絲徑；
2、電爐絲在安裝前應(yīng)對(duì)爐膛全面檢查，清除鐵素體，結(jié)碳，與電爐上接觸的隱患，避免短路，以防造成爐絲擊穿；
3、電爐絲在安裝時(shí)應(yīng)按設(shè)計(jì)的接線方法正確連接；
4、在使用電爐絲前應(yīng)檢查控溫系統(tǒng)的靈敏度，以防溫失靈，造成電爐絲燒毀