材料导热系数总表

1、定义：导热系数是指在稳定传热条件下，1m厚的材料，两侧表面的温差为1度 (K,°C),在1小时内，通过1平方米面积传递的热量，单位为瓦/米度W/m K, 此处的K可用。C代替)。导热系数与材料的组成结构、密度、含水率、温度等因素有关。非晶体结构、 密度较低的材料，导热系数较小。材料的含水率、温度较低时，导热系数较小。通常把导热系数较低的材料称为保温材料(我国国家标准规定，凡平均温度 不高于350 C时导热系数不大于 0.12W/(m K)的材料称为保温材料)，而把导 热系数在0.05瓦/米摄氏度以下的材料称为高效保温材料。千卡/米时kcal/(m h C )卡/厘米秒cal/(cm

2、s C)C瓦/米 KW/(m K)焦耳/厘米秒 CJ/(cm s C )英热单位/英尺时 °FBtu/(ft h F)12.78 X10 -31.161.16 X10 -20.6723601418.74.1872420.85982.39 X10 -3110 -20.57885.980.239100157.81.494.13 X10 -31.731.73 X10 -21材料名称导热系数W/mK分类描述A356159A360113A38096ABSADC1296Ag银429Ag 99.9%411Air空气Al纯铝237硬铝1774.5%Cu铸铝1634.5%CuA12O3蓝宝石45AlN

3、150Au金315-317Cu纯铜398-401黄铜70-10930%Zn青铜26-3225%Sn康铜20.9温度30Diam ond钻石2300Fe铁80FR40.2GaAs46GaP77LTCC2HDPE0.33H2SO4 (5-25 )90%硫酸0.354HTCG I450-600HTCG II350-450ICE冰2.22Kovar17.3LDPE0.33Mg镁1480.6%MuNi纯镍90PA0.25Pb纯铅35PC0.2PMMAPP0.25PP+25 %玻纤PVC0.14软质PVC0.17硬质PS0.08PU0.25Rubber橡胶Si150Silica纯硅胶0.35中密度硅胶0.

4、17低密度硅胶0.12SiO27.6玻璃0.12玻璃钢0.4普通冕玻璃1温度20石英玻璃1.46温度4燧石玻璃0.795温度32重燧石玻璃0.78温度12.5精制玻璃0.9温度12SiC490Sn纯锡64-67Snow新下的雪0.1填实了的雪0.21STCG I750STCG II600-700Steel36-540.5%C殷钢11温度30Ti纯钛14.63Water水重水0.559水蒸汽重水蒸汽0.072Wood木材横向木材0.38纵向落叶松木0.13温度0普通松木温度45杨木0.1温度100白桦木0.15温度30橡木0.17温度20雪松0.095温度0柏木0.1温度20Zi112ZL102

5、168ZL1041551070型铝合金2261050型铝合金209AL60636063型铝合金201AL60616061型铝合金155-160AL7075130泡沫塑料0.045环氧树脂普通粘土砖耐火砖1.06水泥沙0.9 1.28拌石水泥1.5瓷砖1.99石棉温度0玄武岩2.18花岗岩2.6 3.6石蜡0.12蜡0.04石蜡油0.123石油0.14沥青0.699沥青0.7纸板0.06 0.14铸铁42 90不锈钢17铸铝138 147导热硅0.8-3亚麻布0.09温度50木屑0.05温度50海砂0.03温度20研碎软木0.04温度20压缩软木0.07温度20聚苯乙烯0.08温度100硫化橡胶

6、温度50镍铝锰合金32.7温度0镍铬合金12.3-171温度30纸温度12纸板0.14皮棉0.03温度4.1皮革矿渣棉温度0毡0.04瓷1.05汽油0.11温度12变压器油0.128柴油机燃油0.12“天然气”油0.14温度12甘油0.276温度0煤油0.12温度100蓖麻油0.18温度500橄榄油0.165温度0凡士林0.184温度12、.一【、t r r 玄武岩2.177花岗石2.68 3.35丙酮0.177苯0.139已烷0.152温度0二氯乙烷0.147醋酸18硝基苯0.159二硫化碳0.144甲醇0.207四氯化碳0.106三氯甲烷0.121氨气0.022硫化氢0.013聚苯板0.0

7、4胶合板0.125温度0木工板纤维素0.46温度0丝温度20炉渣0.84温度50硬质胶0.18温度50常用材料的导热系数表用途材料名称密度(kg/m 3)导热系数(W/m.K)窗框铜8900380硅合金铝2800160黄铜8400120铁780050不锈钢790017PVC13900.17硬木7000.18建筑构件软木5000.13UP树脂玻璃钢19000.4碳酸钙玻璃25001.0玻璃有机玻璃PMMA11800.18聚碳酸脂12000.2聚冼氨尼龙11500.256.6%尼龙,25%玻璃纤14500.3维高密度聚乙烯 HD9800.5热断桥低密度聚乙烯LD9200.33固体聚丙烯9100.2

8、225%玻纤聚丙烯12000.25聚亚氨脂树脂PU12000.25刚性PVC13900.17防雨氯丁橡胶PCP12400.23三元乙丙EPDM11500.25密封条纯硅胶12000.35柔性PVC12000.14聚脂马海毛10.14柔性橡胶泡末60-800.05密封剂刚性聚氨脂PU12000.25固体/热融异丁烯12000.24聚硫胶17000.4纯硅胶12000.35聚异丁烯9300.2聚脂树脂14000.19硅胶干燥剂7200.13分子筛650-7500.1低密度硅胶泡末7500.12中密度硅胶泡末8200.17表2窗体材料导热系数窗框材料钢材铝合金PVC PA松木导热系数 58.2 20

9、3 0.16 0.23 0.17表3不同玻璃的传热系数玻璃类型玻璃结构（m）传热系数K-w/(m2-k)单层玻璃6.2双层中空玻璃 5 X9 X5 3.265 X12 X5 3.11一层中空玻璃 5 X9 X5 X9 X5 2.22J- 5 X12 X5 X12 X5 2.08Lhw-E 中空玻璃 5 X12 X5 1.71常用材料导热系数-深圳智通电子有限公司提供MetalCon ductivityDen sityMaterialW/m-Ckg/m 3Alumi num, 2024, Temper-T31212.80E+03Alumi num, 2024, Temper-T3511432.8

10、0E+03Alumi num, 2024, Temper-T41212.80E+03Alumi num, 5052, Temper-H321382.68E+03Alumi num, 5052, Temper-O1442.69E+03Aluminum, 6061, Temper-O1802.71E+03Aluminum, 6061, Temper-T41542.71E+03Aluminum, 6061, Temper-T61672.71E+03Alumi num, 7075, Temper-O1302.80E+03Aluminum, 7075, Temper-T61302.80E+03Alumi

11、num, A356, Temper-T61282.76E+03Aluminum, Al-Cu, Duralumin, 95%Al-5%Cu1642.79E+03Aluminum, Al-Mg-Si, 97%Al-1%Mg-1%Si-1%Mn1772.71E+03Aluminum, Al-Si, Alusil, 80%Al-20%Si1612.63E+03Aluminum, Al-Si, Silumim, 86.5%Al-1%Cu1372.66E+03Aluminum, Pure2202.71E+03Beryllium, Pure1751.85E+03Brass, Red, 85%Cu-15%Z

12、n1518.80E+03Brass, Yellow, 65%Cu-35%Zn1198.80E+03Copper, Alloy, 110003888.93E+03Copper, Aluminum bronze, 95%Cu-5%Al838.67E+03Copper, Brass, 70%Cu-30%Zn1118.52E+03Copper, Bronze, 75%Cu-25%Sn268.67E+03Copper, Constantan, 60%Cu-40%Ni22.78.92E+03Copper, Drawn Wire2878.80E+03Copper, German silver, 62%Cu-

13、15%Ni-22%Zn24.98.62E+03Copper, Pure3868.95E+03Copper, Red brass, 85%Cu-9%Sn-6%Zn618.71E+03Gold, Pure3181.89E+04Invar, 64%Fe-35%Ni13.88.13E+03Iron, Cast557.92E+03Iron, Pure71.87.90E+03Iron, Wrought, 0.5%C597.85E+03Kovar, 54%Fe-29%Ni-17%Co16.38.36E+03Lead, Pure351.14E+04Magnesium, Mg-Al, Electrolytic,

14、 8%Al-2%Zn661.81E+03Magnesium, Pure1711.75E+03Molybdenum1301.02E+04Nichrome, 80%Ni-20%Cr128.40E+03Nickel, Ni-Cr, 80%Ni-20%Cr12.68.31E+03Nickel, Ni-Cr, 90%Ni-10%Cr178.67E+03Nickel, Pure998.91E+03Silver, Pure4181.05E+04Solder, Hard, 80%Au-20%Sn571.50E+04Solder, Hard, 88%Au-12%Ge881.50E+04Solder, Hard,

15、 95%Au-3%Si941.57E+04Solder, Soft, 60%Sn-40%Pb509.29E+03Solder, Soft, 63%Sn-37%Pb519.25E+03Solder, Soft, 92.5%Pb-2.5%Ag-5%In391.20E+04Solder, Soft, 95%Pb-5%Sn32.31.10E+04Steel, Carbon, 0.5%C547.83E+03Steel, Carbon, 1.0%C437.80E+03Steel, Carbon, 1.5%C367.75E+03sfee- chrome- cro& sfee- chrome- Cr1

16、& sfee- chrome- Cr20& sfee- chrome- Cr5& SfeeL chromeNickeL 15&cr10&Ni sfee- chromeNickeL 18&cr00&Ni SfeeL chromeNickeL 20&cr15&Ni sfee- chromeNickeL 25&cr20&Ni sfee-nvar- 36&Ni s(De_- Nicke_- NO& s(De_- Nicke_- Ni20&61401531287O0E+037&7E+0

17、37.69E+037&3E+037&7E+037.82E+037&3E+037&7E+03o°14E+037O0E+037.93E+03s(De_- Nicke_- Ni40& s(De_- Nicke_- Ni80& s(De_- SAE 1010 s(De_- SAE 1010- Sheef sfee- ss-in-ess- 316 sfee- Tungsfen- W0& sfee- Tungsfen- W1& sfee- Tungsfen- W10& sfee- Tungsfen- W5& Tin-

18、 CasL Hammered Tin- PureMB亠0355963込16.267366485462.5648.17E+038.62E+037.83E+037.83E+038.03E+037O0E+037O1E+03 8.31 E+03 8.07E+03 7.35E+03 7.30E+03Titanium15.64.51E+03Tungsten1801.94E+04Zinc, Pure112.27.14E+03Non-MetalMaterialABS-PlasticAcetalsAcrylicAlkydsAlumina, 96%Alumina, PureAsbestos, Asbestos-s

19、heetsAsbestos, CementAsbestos, Cement-boardsAsbestos, Corregated, 4plies/inConductivityW/m-C0.250.30.060.8521370.1662.080.740.087Densitykg/m31.01E+031.42E+031.19E+032.00E+033.80E+033.90E+03No DataNo DataNo DataNo DataAsbestos, Felt, 40 lam/in0.057No DataAsbestos, Loosely-packed0.154520Asphalt0.75No

20、DataBakelite0.19No DataBalsam wool 2.2lb/ft 30.0435Beryllia, 99.5%197.3No DataBrick, Building brick0.691.60E+03Brick, Carborundum brick18.5No DataBrick, Chrome brick2.323.00E+03Brick, Diatomaceous earth0.24No DataBrick, Face brick1.322.00E+03Brick, Fireclay1.042.00E+03Brick, Magnesite3.81No DataCarb

21、on6.92No DataCardboard, Celotex0.048No DataCardboard, Corrugated0.064No DataCement, Mortar1.16No DataCement, Portland0.291.50E+03Concrete, Cinder0.76No DataConcrete, Stone 1-2-4 mix1.372.10E+03Cork, Corkboard,10lb/ft 30.043160Cork, Ground0.043150Cork, RegranulatedDiamond, FilmDiamond, Type IIADiamon

22、d, Type IIBDiatomaceous earthE-Glass FiberEpoxy, High FillEpoxy, No FillFelt, HairFelt, WoolFiber insulating boardFR4 Epoxy Glass, 1oz CopperFR4 Epoxy Glass, 2 oz CopperFR4 Epoxy Glass, 4oz CopperFR4 Epoxy Glass, no CopperGlass, BorosilicateGlass, PyrexGlass, WindowGlass, Wool, 1.5lb/ft 3Insulex, dr

23、yKapok0.0457002.00E+031.30E+030.0610.892.1630.2070.0360.0520.0489.1117.7135.150.2941.091.020.780.0380.0640.035803.50E+03No DataNo Data3202.54E+03No DataNo Data265330240No DataNo DataNo Data1.90E+032.20E+032.23E+032.70E+0324No DataNo DataMagnesia, 85%MicaMylarNylonPhenolic, Paper basedPhenolic, Plain

24、Plaster, GypsumPlaster, Metal lathPlaster, Wood lathPlexiglassPolycarbonatePolyethylene, High densityPolyethylene, Low densityPolyethylene, Medium densityPolystyrenePolyvinyl chloridePyrexRock wool, 10lb/ft 3Rock wool, Loosely packedRubber, ButylRubber, Hard0.0670.710.190.2420.2770.5190.480.470.280.1