镍铬镍铬铁电阻电热合金具有较高的电阻率

1、       镍铬.镍铬铁电阻电热合金具有较高的电阻率，表面抗氧化性好。并且在高温下有较高的强度，有良好的加工性能及可焊性，可广泛用于冶金、家用电器、机械制造业等做发热元件和电器行业作电阻材料 合金丝材的编号、牌号和直径范围编号牌号直径范围Hccn-1Cr20Ni800.038mmHccn-2Cr30Ni700.038mmHccn-3Cr15Ni600.038mmHccn-4Cr20Ni350.038mmHccn-5Cr20Ni300.038mmHcca-10Cr25Al50.038mmHcca-21Cr13Al40.038mmHcc

2、a-30Cr23Al50.038mmHcca-40Cr21Al60.038mmHcca-51Cr20Al30.038mmHcca-60Cr21Al6Nb0.038mmHcca-70Cr27Al7Mo20.038mm合金带材的编号、牌号和范围编号牌号范围厚度宽度Hrcn-1Cr20Ni800.053.5mm5250mmHrcn-2Cr30Ni700.053.5mm5250mmHrcn-3Cr15Ni600.053.5mm5250mmHrcn-4Cr20Ni350.053.5mm5250mmHrcn-5Cr20Ni300.053.5mm5250mmHrca-10Cr25Al50.053.5mm52

3、50mmHrca-21Cr13Al40.053.5mm5250mmHrca-30Cr23Al50.053.5mm5250mmHrca-40Cr21Al60.053.5mm5250mmHrca-51Cr20Al30.053.5mm5250mmHrca-60Cr21Al6Nb0.053.5mm5250mmHrca-70Cr27Al7Mo20.053.5mm5250mm合金主要化学成分合金成分化学成分，%CPSMnSiCrNiAlFe其他不大于Cr20Ni800.080.0200.0150.600.751.6020.023.0余0.501.0-Cr30Ni700.080.0200.0150.600.

4、751.6028.031.0余0.501.0-Cr15Ni600.080.0200.0150.600.751.6015.018.055.061.00.50余-Cr20Ni350.080.0200.0151.001.003.0018.021.034.037.0-余-Cr20Ni300.080.0200.0151.001.002.0018.021.030.034.0-余-合金成分化学成分，%CPSMnSiCrNiAlFe其他不大于1Cr13Al40.120.0250.0250.701.0012.015.00.604.06.0余-0Cr25Al50.060.0250.0250.700.6023.02

5、6.00.604.56.5余-0Cr23Al50.060.0250.0250.700.6020.523.50.604.25.3余-0Cr21Al60.060.0250.0250.701.0019.022.00.605.07.0余-1Cr20Al30.100.0250.0250.701.0018.021.00.603.04.2余-0Cr21Al6Nb0.050.0250.0250.700.6021.023.00.605.07.0余Nb加入量0.50Cr27Al7Mo20.050.0250.0250.200.4026.527.80.606.07.0余Mo加入量1.82.2冷拉合金丝允差直径范围允许

6、偏差0.0300.050±0.0040.0500.100±0.0060.1000.300±0.0080.3000.500±0.0120.501.00±0.0161.003.00±0.0243.006.00±0.0326.008.00±0.040冷拉合金带材允差 厚度范围厚度允许偏差 宽度范围允许偏差切边不切边0.050.10±0.008 5.010.0±0.16-0.50.100.20±0.012 10.020.0±0.16-0.650.200.

7、50±0.016 20.030.0±0.16-0.80.501.00±0.024 30.050.0±0.24-1.01.001.80±0.032 50.090.0±0.24±0.81.802.50±0.040 90.0120.0±0.40±1.22.503.50±0.050 120.0250.0±0.40±1.5冷轧带料每米长度的侧弯 合金带厚度，mm单支最小长度，m0.050.10100.100.30200.301

8、.00151.002.00102.003.505宽度每米侧弯，不大于切边不切边206.01220503.56.5502.54每轴冷拉丝材重量 直径mm每轴重量不小于，Kg0.030.050.030.050.070.040.070.100.060.100.300.400.300.500.600.500.801.200.801.202.201.202.004.402.003.506.603.505.008.805.0011.00软态丝材、带材的室温电阻率（考核每米电阻的丝材，其室温电阻率不考核） 合金牌号直径，mm电阻率,.m   20Cr20Ni800.500.503.003

9、.001.09±0.051.13±0.051.14±0.05Cr30Ni700.500.501.18±0.051.20±0.05Cr15Ni600.500.501.12±0.051.15±0.05Cr20Ni35Cr20Ni300.500.501.04±0.051.06±0.051Cr13Al40Cr25Al50Cr23Al50Cr21Al61Cr20Al30Cr21Al6Nb0.038.001.25±0.051.42±0.051.35±0.051.42±0.051

10、.23±0.051.45±0.050Cr27Al7Mo20.038.001.53±0.05合金牌号合金带厚度，mm电阻率,.m   20Cr20Ni800.800.803.003.001.09±0.051.13±0.051.14±0.05Cr30Ni700.800.803.003.001.18±0.051.19±0.051.20±0.05Cr15Ni600.800.803.003.001.11±0.051.14±0.051.15±0.05Cr20Ni35C

11、r20Ni300.800.801.04±0.051.06±0.051Cr13Al40.058.001.25±0.050Cr25Al50.058.001.42±0.050Cr23Al50.058.001.35±0.050Cr21Al60.058.001.42±0.051Cr20Al30.058.001.23±0.050Cr21Al6Nb0.058.001.45±0.050Cr27Al7Mo20.058.001.53±0.05    镍铬.镍铬铁电阻电热合金具有较高的电

12、阻率，表面抗氧化性好。并且在高温下有较高的强度，有良好的加工性能及可焊性，可广泛用于冶金、家用电器、机械制造业等做发热元件和电器行业作电阻材料。软态丝材的每米电阻值允许偏差直径范围，mm允许偏差，%0.030.06±80.060.12±70.120.17±60.170.32±50.321.00±41.008.00±320时,直径小于1.00mm的软态丝材的每米电阻值、每千克丝长及每千克电阻值的中值数据20时,直径大于1.00mm的软态丝材的每米电阻值、每千克丝长及每千克电阻值的中值数据丝材在规定温度下的快速寿命合金牌号试验温度，快速寿

13、命值，h不小于Cr20Ni801200100Cr30Ni70125060Cr15Ni601150100Cr20Ni351100100Cr20Ni3011001001Cr13Al410001000Cr25Al513001000Cr23Al513001000Cr21Al613001001Cr20Al312501000Cr21Al6Nb1350600Cr27Al7Mo2135060直径大小6mm的丝材的断后伸长率合金类别断后伸长率5，%不小于Ni-Cr合金Ni-Cr-Fe合金1Cr13Al40Cr27Al7Mo2其他Fe-Cr-Al合金2020161012本公司生产各类电阻丝、电阻带。l 高电阻电热

14、合金电阻温度因数(修正系数)合金牌号201002003004005006007008009001000110012001300Cr20Ni801.0001.0061.0121.0181.0251.0261.0181.0101.0081.0101.0141.0211.025-  Cr30Ni701.0001.0071.0161.0281.0381.0441.0361.0301.0281.0291.0331.0371.043  -Cr15Ni601.0001.0111.0241.0381.0521.0641.0691.0731.0781.0881.0951.109 

15、-  -Cr20Ni351.0001.0291.0611.0901.1151.1391.1571.1731.1881.2081.2191.228  -  -Cr20Ni301.0001.0231.0521.0791.1031.1251.1411.1581.1731.1871.2011.2141.226  -1Cr13Al41.0001.0051.0141.0281.0441.0641.0901.1201.1321.1421.150  -  -  -0Cr25Al51.0001.0021.0051.0081.0131.0211

16、.0301.0381.0401.0421.0441.0461.047  -0Cr23Al51.0001.0021.0071.0141.0241.0361.0561.0641.0701.0741.0781.0811.084  - 0Cr21Al61.0001.0001.0021.0061.0111.0201.0371.0431.0461.0491.0521.0551.058  -1Cr20Al31.0001.0111.0251.0421.0611.0851.1201.1421.1541.1641.1721.1801.186  -0Cr21Al6Nb1.00

17、00.9970.9960.9940.9910.9900.9900.9900.9900.9900.9900.9900.990  -0Cr27Al7Mo21.0000.9920.9860.9810.9780.9760.9740.9720.9700.9690.9680.9680.9670.967 电热合金主要物理性能                     性能 合金牌号元

18、件最高使用温度熔点(近似)密度 g/cm3电阻率(20)m比热J/g导热系数kJ/mh平均线膨胀系数(201000)×10-6/组织磁性Cr20Ni80120014008.401.090.44060.318.0奥氏体非磁性Cr30Ni70125013808.101.180.46145.217.0奥氏体非磁性Cr15Ni60115013908.201.120.49445.217.0奥氏体非磁性Cr20Ni35110013907.901.040.50043.819.0奥氏体弱磁性Cr20Ni30110013907.901.040.50043.819.0奥氏体弱磁性1Cr13Al495014507.401.250.49052.715.4铁素体磁  性0Cr25Al51250