常見物質(zhì)的電阻率

1、常見物質(zhì)的電阻率物質(zhì) 溫度t/ 電阻率    電阻溫度系數(shù)aR/-1銀 20 1.586   0.0038(20)銅 20 1.678    0.00393(20)金 20 2.40  0.00324(20)鋁 20 2.6548   0.00429(20)鈣  0 3.91  0.00416(0)鈹 20 4.0     0.025(20)鎂 20 4.45     0.0165(20)鉬  0 5.2       

2、0;       銥 20 5.3       0.003925(0100)鎢 27 5.65              鋅 20 5.196   0.00419(0100)鈷 20 6.64     0.00604(0100)鎳 20 6.84     0.0069(0100)鎘  0 6.83      0.0042(0100)銦 20 8.37   &

3、#160;          鐵 20 9.71     0.00651(20)鉑 20 10.6     0.00374(060)錫   0 11.0     0.0047(0100)銣 20 12.5鉻 0  12.9     0.003(0100)鎵 20 17.4鉈 0  18.0銫 20 20.0鉛 20 20.684 0.00376 (2040)銻  0 39.0鈦 20 42.0汞 50 98.4錳  

4、 23100 185.0直流叫滯磁回線，不通過零點(diǎn)，與B座標(biāo)相交叫剩磁、其面積能表達(dá)滯磁損耗，。交流只有一條曲線通過零點(diǎn)。武鋼硅鋼標(biāo)準(zhǔn)發(fā)布時(shí)間:2010-03-12 關(guān)鍵詞:武鋼,硅鋼,標(biāo)準(zhǔn), 冷軋無取向電工鋼帶（片）1、范圍本標(biāo)準(zhǔn)規(guī)定了無取向電工鋼的牌號(hào)、公稱厚度、疊裝系數(shù)、磁特性等技術(shù)條件。本標(biāo)準(zhǔn)適合于武漢鋼鐵股份有限公司生產(chǎn)的冷軋無取向電工鋼帶（片）。2、引用標(biāo)準(zhǔn)下列文件中的條款通過在本標(biāo)準(zhǔn)中的引用而構(gòu)成本標(biāo)準(zhǔn)的條款。凡是注日期的引用文件，其隨后所有的修改單（不包括勘誤的內(nèi)容）或修訂版均不適用于本標(biāo)準(zhǔn)，然而，鼓勵(lì)根據(jù)本標(biāo)準(zhǔn)達(dá)成協(xié)議的各方研究是否可使用這些文件的最新版本。凡是不注日期的引用

5、文件，其最新版本適用于本標(biāo)準(zhǔn)。GB/T 228-1987 金屬拉伸試驗(yàn)方式GB/T 235-1988 金屬反復(fù)彎曲試驗(yàn)方法（厚度等于或小于3mm薄板及鋼帶）GB/T 247-1988 鋼板和鋼帶驗(yàn)收、包裝、標(biāo)志及質(zhì)量證明的一般規(guī)定GB/T 2522-1988 電工鋼（帶）層間電阻、涂層附著性、疊裝系數(shù)測試方法GB/T 3076-1982 金屬薄板（帶）拉伸試驗(yàn)方法GB/T 3655-1992 電工鋼片（帶）磁、電和物理性能測量方法GB/T 6397-1986 金屬拉伸試驗(yàn)試樣GB/T 13789-1998 單片面性電工鋼片（帶）磁性能測量方法3、牌號(hào)表示方法為了區(qū)別于GB/T2521-1996

6、的同類產(chǎn)品牌號(hào)，本標(biāo)準(zhǔn)牌號(hào)中的各符號(hào)含義表述如下：  4、技術(shù)要求4.1磁特性4.1.1磁感在5000A/m交變磁場，頻率為50HZ時(shí)，規(guī)定其最小磁感值B5000(峰值)應(yīng)符合表1的規(guī)定。 表1 磁特性和工藝特性牌號(hào)公稱厚度mm理論密度kg/dm3最大鐵損W/kgP1.5/50最小磁感T B5000最小彎曲次數(shù)最小疊裝系數(shù)%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鐵芯損耗指在頻率為50HZ或60HZ，磁通密度在1.0T或1.5T下結(jié)果，磁通密度指在磁場強(qiáng)度為5000A/m下結(jié)果。除非特殊說明，鐵芯損耗僅提供在50HZ/1.5T條件下結(jié)果。牌號(hào)厚度mm(in.)理論密度（kg/dm3）鐵芯損耗磁通密度（T）疊片系數(shù)（%）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：檢測依據(jù)B/T3655-92或JIS C2550-1986試樣縱橫各半與JIS C2552（1986）的一致性鐵芯損耗指在頻率為50HZ、磁通密度在1.5T下結(jié)果，磁通密指在磁場強(qiáng)度為5000A/m下結(jié)果注：檢測依據(jù)JIS C2550（1986）試樣縱橫各半鋼種密度（kg/dm3）鐵損（W/kg）W15/50磁感（T）B50牌號(hào)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應(yīng)用 牌號(hào)應(yīng)用無取向磁性鋼帶（片）B35A440B35A550B50A470B50A600B50A700B50A800B50A1000B50A1300B65A600B65A1600中型電機(jī)   小型電機(jī)微型電機(jī)密閉電機(jī)間歇電機(jī) 通用交流電機(jī)焊接變壓器   鎮(zhèn)流圈 繼電器  電磁開關(guān) &#

13、160; 電工鋼產(chǎn)品可供規(guī)格 厚度0.35mm0.50mm0.65mm寬度40mm-1290mm鋼卷內(nèi)徑508mm鋼卷外徑700mm-1550mm注：其他尺寸需經(jīng)供需雙方協(xié)商。尺寸及板形公差公稱寬度（mm)公稱厚度(mm)公差厚度允許偏差（mm）橫向厚度差(mm)寬度允許偏差(mm)2m內(nèi)鐮刀彎（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：對(duì)于寬度>830mm的鋼帶，允許以不切變狀態(tài)交貨，基寬度允許偏差為+05mm;橫向厚度差是指板中心與距邊部15mm的厚度差。牌號(hào)厚度mm(in.)理論密度（kg/dm3）鐵芯損耗磁通密度（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：檢測依據(jù)GB/T3655-9

18、2或JIS C2550-1986檢測試樣縱橫向各半P15/50指頻率為50HZ，磁通密度為1.5T時(shí)的損耗B50指磁場強(qiáng)度為5000A/m時(shí)的磁通密度，依此類推以上值為典型值而非保證值典型機(jī)械性能牌號(hào)厚度mm(in.)屈服強(qiáng)度抗拉強(qiáng)度延伸率(%)硬度彎曲次數(shù)疊片系數(shù)(%)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：拉伸檢測依據(jù)GB/T228-1987反復(fù)彎曲檢測依據(jù)JIS C2550疊片系數(shù)是指涂敷A涂層時(shí)的值以上值為典型值而非保證值表面絕緣涂層寶鋼提供A、H、D三種類型的絕緣涂層，用戶可根據(jù)層間電阻、沖片性、耐氟利昂性、耐熱性及其他特性選擇一種符合要求的涂層種類。A涂層A涂層為半有機(jī)薄涂層，具有優(yōu)良的沖片性、耐腐蝕性、耐氟利昂性以及高層間電阻，尤其是焊接性能，適應(yīng)于中、小型電機(jī)、家用電器馬達(dá)及小型變壓器EI鐵芯，相當(dāng)于川鐵的A1涂層及武鋼的T4涂層。H涂層H涂層為半有機(jī)厚涂層，具有優(yōu)良的沖片性、耐腐蝕性、耐氟利昂性以及高層間電阻，適應(yīng)于中、小型電機(jī)。相當(dāng)于川鐵的A1涂層及武鋼的T4涂層。D涂層D涂層為無機(jī)涂層，這種涂層具有優(yōu)良的焊接性和耐熱性，適應(yīng)于中、小電機(jī)，尤其適應(yīng)在較高溫度下進(jìn)行消除應(yīng)力退火使用。相當(dāng)于AISI的C-4涂層及武鋼的T3涂層。除非特殊說明，鋼種設(shè)計(jì)的表面絕緣涂層均為A涂層。表面絕緣涂層特性特性項(xiàng)目A涂層H涂層D涂層備注（1）應(yīng)用鋼種B35A440-B35A550B50