1、常見物質的電阻率物質 溫度t/ 電阻率    電阻溫度系數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，與B座標相交叫剩磁、其面積能表達滯磁損耗，。交流只有一條曲線通過零點。武鋼硅鋼標準發布時間:2010-03-12 關鍵詞:武鋼,硅鋼,標準, 冷軋無取向電工鋼帶（片）1、范圍本標準規定了無取向電工鋼的牌號、公稱厚度、疊裝系數、磁特性等技術條件。本標準適合于武漢鋼鐵股份有限公司生產的冷軋無取向電工鋼帶（片）。2、引用標準下列文件中的條款通過在本標準中的引用而構成本標準的條款。凡是注日期的引用文件，其隨后所有的修改單（不包括勘誤的內容）或修訂版均不適用于本標準，然而，鼓勵根據本標準達成協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準。GB/T 228-1987 金屬拉伸試驗方式GB/T 235-1988 金屬反復彎曲試驗方法（厚度等于或小于3mm薄板及鋼帶）GB/T 247-1988 鋼板和鋼帶驗收、包裝、標志及質量證明的一般規定GB/T 2522-1988 電工鋼（帶）層間電阻、涂層附著性、疊裝系數測試方法GB/T 3076-1982 金屬薄板（帶）拉伸試驗方法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、牌號表示方法為了區別于GB/T2521-1996

6、的同類產品牌號，本標準牌號中的各符號含義表述如下：  4、技術要求4.1磁特性4.1.1磁感在5000A/m交變磁場，頻率為50HZ時，規定其最小磁感值B5000(峰值)應符合表1的規定。 表1 磁特性和工藝特性牌號公稱厚度mm理論密度kg/dm3最大鐵損W/kgP1.5/50最小磁感T B5000最小彎曲次數最小疊裝系數%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下結果，磁通密度指在磁場強度為5000A/m下結果。除非特殊說明，鐵芯損耗僅提供在50HZ/1.5T條件下結果。牌號厚度mm(in.)理論密度（kg/dm3）鐵芯損耗磁通密度（T）疊片系數（%）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下結果，磁通密指在磁場強度為5000A/m下結果注：檢測依據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應用 牌號應用無取向磁性鋼帶（片）B35A440B35A550B50A470B50A600B50A700B50A800B50A1000B50A1300B65A600B65A1600中型電機   小型電機微型電機密閉電機間歇電機 通用交流電機焊接變壓器   鎮流圈 繼電器  電磁開關 &#

13、160; 電工鋼產品可供規格 厚度0.35mm0.50mm0.65mm寬度40mm-1290mm鋼卷內徑508mm鋼卷外徑700mm-1550mm注：其他尺寸需經供需雙方協商。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：對于寬度>830mm的鋼帶，允許以不切變狀態交貨，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時的損耗B50指磁場強度為5000A/m時的磁通密度，依此類推以上值為典型值而非保證值典型機械性能牌號厚度mm(in.)屈服強度抗拉強度延伸率(%)硬度彎曲次數疊片系數(%)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GB/T228-1987反復彎曲檢測依據JIS C2550疊片系數是指涂敷A涂層時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涂層為半有機薄涂層，具有優良的沖片性、耐腐蝕性、耐氟利昂性以及高層間電阻，尤其是焊接性能，適應于中、小型電機、家用電器馬達及小型變壓器EI鐵芯，相當于川鐵的A1涂層及武鋼的T4涂層。H涂層H涂層為半有機厚涂層，具有優良的沖片性、耐腐蝕性、耐氟利昂性以及高層間電阻，適應于中、小型電機。相當于川鐵的A1涂層及武鋼的T4涂層。D涂層D涂層為無機涂層，這種涂層具有優良的焊接性和耐熱性，適應于中、小電機，尤其適應在較高溫度下進行消除應力退火使用。相當于AISI的C-4涂層及武鋼的T3涂層。除非特殊說明，鋼種設計的表面絕緣涂層均為A涂層。表面絕緣涂層特性特性項目A涂層H涂層D涂層備注（1）應用鋼種B35A440-B35A550B50