常见物质的电阻率

1、常见物质的电阻率物质 温度t/ 电阻率    电阻温度系数aR/-1银 20 1.586   0.0038(20)铜 20 1.678    0.00393(20)金 20 2.40  0.00324(20)铝 20 2.6548   0.00429(20)钙  0 3.91  0.00416(0)铍 20 4.0     0.025(20)镁 20 4.45     0.0165(20)钼  0 5.2       

2、0;       铱 20 5.3       0.003925(0100)钨 27 5.65              锌 20 5.196   0.00419(0100)钴 20 6.64     0.00604(0100)镍 20 6.84     0.0069(0100)镉  0 6.83      0.0042(0100)铟 20 8.37   &

3、#160;          铁 20 9.71     0.00651(20)铂 20 10.6     0.00374(060)锡   0 11.0     0.0047(0100)铷 20 12.5铬 0  12.9     0.003(0100)镓 20 17.4铊 0  18.0铯 20 20.0铅 20 20.684 0.00376 (2040)锑  0 39.0钛 20 42.0汞 50 98.4锰  

4、 23100 185.0直流叫滞磁回线，不通过零点，与B座标相交叫剩磁、其面积能表达滞磁损耗，。交流只有一条曲线通过零点。武钢硅钢标准发布时间:2010-03-12 关键词:武钢,硅钢,标准, 冷轧无取向电工钢带（片）1、范围本标准规定了无取向电工钢的牌号、公称厚度、叠装系数、磁特性等技术条件。本标准适合于武汉钢铁股份有限公司生产的冷轧无取向电工钢带（片）。2、引用标准下列文件中的条款通过在本标准中的引用而构成本标准的条款。凡是注日期的引用文件，其随后所有的修改单（不包括勘误的内容）或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用

5、文件，其最新版本适用于本标准。GB/T 228-1987 金属拉伸试验方式GB/T 235-1988 金属反复弯曲试验方法（厚度等于或小于3mm薄板及钢带）GB/T 247-1988 钢板和钢带验收、包装、标志及质量证明的一般规定GB/T 2522-1988 电工钢（带）层间电阻、涂层附着性、叠装系数测试方法GB/T 3076-1982 金属薄板（带）拉伸试验方法GB/T 3655-1992 电工钢片（带）磁、电和物理性能测量方法GB/T 6397-1986 金属拉伸试验试样GB/T 13789-1998 单片面性电工钢片（带）磁性能测量方法3、牌号表示方法为了区别于GB/T2521-1996

6、的同类产品牌号，本标准牌号中的各符号含义表述如下：  4、技术要求4.1磁特性4.1.1磁感在5000A/m交变磁场，频率为50HZ时，规定其最小磁感值B5000(峰值)应符合表1的规定。 表1 磁特性和工艺特性牌号公称厚度mm理论密度kg/dm3最大铁损W/kgP1.5/50最小磁感T B5000最小弯曲次数最小叠装系数%35WW2300.357.602.301.62295.035WW2507.602.501.62235WW2707.652.701.62235WW3007.653.001.62535WW3607.653.601.63535WW4007.654.0

7、01.63535WW4407.704.401.65550WW2300.507.602.301.62297.050WW2507.602.501.62250WW2707.602.701.62250WW2907.602.901.62350WW3107.653.101.62550WW3507.653.501.62550WW4007.654.001.631050WW4707.704.701.641050WW6007.756.001.661050WW7007.807.001.671050WW8007.808.001.681050WW10007.8510.001.701050WW13007.8513.001

8、.7210铁芯损耗指在频率为50HZ或60HZ，磁通密度在1.0T或1.5T下结果，磁通密度指在磁场强度为5000A/m下结果。除非特殊说明，铁芯损耗仅提供在50HZ/1.5T条件下结果。牌号厚度mm(in.)理论密度（kg/dm3）铁芯损耗磁通密度（T）叠片系数（%）W/kgW/1b1.0T1.5T1.0T1.5T1.0T1.5T1.0T1.5T5000A/mB35A4400.35(0.0138)7.701.804.402.305.600.822.001.041.041.64 B35A5507.752.255.502.887.001.022.491.311.311.66B50A47

9、00.50(0.0197)7.752.004.702.555.950.972.131.161.161.6297B50A6007.752.606.003.307.601.182.721.501.501.65B50A7007.803.007.003.808.901.363.181.731.731.68B50A8007.803.608.004.5510.151.633.632.072.071.68B50A10007.854.4010.005.6012.702.004.542.542.541.69B50A13007.855.8013.007.3516.502.635.905.903.341.69B65

10、A6000.65(0.0256)7.752.706.003.417.611.222.722.721.551.6497B65A7007.753.157.003.988.881.433.183.181.811.65B65A8007.803.608.004.5510.151.633.633.632.071.66B65A10007.804.4010.005.6012.702.004.544.542.541.68B65A13007.855.8013.007.3516.502.635.905.903.341.69B65A16007.857.1016.009.0020.303.227.267.264.091

11、.69注：检测依据B/T3655-92或JIS C2550-1986试样纵横各半与JIS C2552（1986）的一致性铁芯损耗指在频率为50HZ、磁通密度在1.5T下结果，磁通密指在磁场强度为5000A/m下结果注：检测依据JIS C2550（1986）试样纵横各半钢种密度（kg/dm3）铁损（W/kg）W15/50磁感（T）B50牌号厚度（mm）35A4400.357.704.401.6450A4700.507.704.701.6250A6007.756.001.6550A7007.807.001.6850A8007.808.001.6850A10007.8510.001.6950A130

12、07.8513.001.6965A8000.657.808.001.6665A10007.8010.001.6865A13007.8513.001.6965A16007.8516.001.69应用 牌号应用无取向磁性钢带（片）B35A440B35A550B50A470B50A600B50A700B50A800B50A1000B50A1300B65A600B65A1600中型电机   小型电机微型电机密闭电机间歇电机 通用交流电机焊接变压器   镇流圈 继电器  电磁开关 &#

13、160; 电工钢产品可供规格 厚度0.35mm0.50mm0.65mm宽度40mm-1290mm钢卷内径508mm钢卷外径700mm-1550mm注：其他尺寸需经供需双方协商。尺寸及板形公差公称宽度（mm)公称厚度(mm)公差厚度允许偏差（mm）横向厚度差(mm)宽度允许偏差(mm)2m内镰刀弯（mm）毛刺(mm)1500.350.500.65±0.04±0.04±0.050.020.030.03+0.301.00.05>150-5000.350.500.65±0.04±0.04±0.050.020.030.

14、03+0.50>500-10000.350.500.65±0.04±0.04±0.050.020.030.04+1.50>10000.350.500.65±0.04±0.04±0.050.020.040.04+1.50注：对于宽度>830mm的钢带，允许以不切变状态交货，基宽度允许偏差为+05mm;横向厚度差是指板中心与距边部15mm的厚度差。牌号厚度mm(in.)理论密度（kg/dm3）铁芯损耗磁通密度（T）W/kgW/1bP10/50P15/50P10/60P15/60P10/50P15/50P10/60P15/

15、60B10B25B50B100B35A4400.35(0.0138)7.701.693.892.104.820.771.760.952.191.491.581.661.78B35A5507.751.703.902.114.840.771.770.962.201.501.591.671.79B50A4700.50(0.0197)7.751.774.072.235.150.801.851.012.341.511.601.681.79B50A6007.751.854.282.335.420.841.941.062.461.521.611.691.80B50A7007.802.585.513.226.

16、901.172.501.463.131.551.641.721.83B50A8007.802.685.843.357.361.222.651.523.341.551.641.721.83B50A10007.852.986.513.768.301.352.921.713.761.581.671.751.86B50A13007.853.257.114.139.131.473.231.874.141.581.671.751.86B65A6000.65(0.0256)7.752.094.782.696.190.952.171.222.811.511.611.691.80B65A7007.752.315

17、.252.986.801.052.381.353.081.511.611.691.80B65A8007.802.876.193.657.951.302.811.663.611.551.641.721.83B65A10007.803.141.973.998.951.423.161.814.061.551.641.721.83B65A13007.853.548.014.5710.531.613.632.074.781.581.671.751.86B65A16007.854.189.525.4012.521.904.322.455.681.581.671.751.86注：检测依据GB/T3655-9

18、2或JIS C2550-1986检测试样纵横向各半P15/50指频率为50HZ，磁通密度为1.5T时的损耗B50指磁场强度为5000A/m时的磁通密度，依此类推以上值为典型值而非保证值典型机械性能牌号厚度mm(in.)屈服强度抗拉强度延伸率(%)硬度弯曲次数叠片系数(%)LCLCN/mm2(kgf/mm2)lb/in2N/mm2(kgf/mm2)lb/in2N/mm2(kgf/mm2)lb/in2N/mm2(kgf/mm2)lb/in2L41CLCB35A4400.35(0.0138)260(27)38,000269(27)39,000419(43)61,000438(45)46,000353

19、7138303098B35A550244(25)35,000253(26)37,000400(41)58,000418(43)44,0003638130303098.5B50A4700.50(0.0197)260(27)38,000269(27)39,000419(43)61,000428(43)45,0003638137303098.5B50A600240(24)35,000240(24)35,000400(41)58,000410(42)43,0003840129303098.5B50A700270(28)39,000288(29)42,000402(41)58,000412(42)43,

20、0003840128303098.5B50A800280(29)41,000290(30)42,000407(42)59,000419(43)44,0003840127303098.5B50A1000262(27)38,000262(27)38,000374(38)39,000384(39)40,0004042117303098.5B50A1300253(26)37,000261(27)38,000357(27)37,000357(27)37,0004142110303098.5B65A6000.65(0.0256)245(25)36,000254(26)37,000406(41)59,000

21、406(41)59,0003839137303099B65A700245(25)36,000254(26)37,000406(41)59,000406(41)59,0003738130303099B65A800263(27)38,000272(28)39,000401(41)58,000401(41)58,0003940128303099B65A1000280(29)41,000289(29)42,000408(42)59,000420(43)61,0003839127303099B65A1300248(25)36,000257(26)37,000366(37)53,000388(40)56,

22、0004040115303099B65A1600252(26)37,000284(29)41,000358(37)52,000369(38)53,0004142110303099注：拉伸检测依据GB/T228-1987反复弯曲检测依据JIS C2550叠片系数是指涂敷A涂层时的值以上值为典型值而非保证值表面绝缘涂层宝钢提供A、H、D三种类型的绝缘涂层，用户可根据层间电阻、冲片性、耐氟利昂性、耐热性及其他特性选择一种符合要求的涂层种类。A涂层A涂层为半有机薄涂层，具有优良的冲片性、耐腐蚀性、耐氟利昂性以及高层间电阻，尤其是焊接性能，适应于中、小型电机、家用电器马达及小型变压器EI铁芯，相当于川铁的A1涂层及武钢的T4涂层。H涂层H涂层为半有机厚涂层，具有优良的冲片性、耐腐蚀性、耐氟利昂性以及高层间电阻，适应于中、小型电机。相当于川铁的A1涂层及武钢的T4涂层。D涂层D涂层为无机涂层，这种涂层具有优良的焊接性和耐热性，适应于中、小电机，尤其适应在较高温度下进行消除应力退火使用。相当于AISI的C-4涂层及武钢的T3涂层。除非特殊说明，钢种设计的表面绝缘涂层均为A涂层。表面绝缘涂层特性特性项目A涂层H涂层D涂层备注（1）应用钢种B35A440-B35A550B50A470-B50A1300B65A600-B65A160