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 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

2、称为高效保温材料。焦耳/厘英热单位/英千卡 /米·时·卡 / 厘米 ·秒·瓦 /) cal/(cm s)米 ·KW/(m ·K)米·秒·尺·时···kcal/(m hJ/(cm s· ) Btu/(ft h·· )12.78 ×10 -31.161.16 ×10 -20.6723601418.74.1872420.85982.39 ×10 -3110 -20.57885.980.239100157.81.494.13

3、 ×10 -31.731.73 ×10 -21材料名称导热系数分类描述W/mKA356159A360113A38096ABS0.25-0.9ADC1296Ag银429Ag 99.9%411Air空气0.01-0.04Al纯铝237硬铝1774.5%Cu铸铝1634.5%CuAl2O3 蓝宝石45AlN150Au金315-317Cu纯铜398-401黄铜70-10930%Zn青铜26-3225%Sn康铜20.9温度 30Diamond钻石2300Fe铁80FR40.2GaAs46GaP77LTCC2HDPE0.33H2SO4（ 5-25）0.47-0.590%硫酸0.354H

4、TCG I450-600HTCG II350-450ICE冰2.22Kovar17.3LDPE0.33Mg镁1480.6%MuNi纯镍90PA0.25Pb纯铅35PC0.2PMMA0.14-0.2PP0.21-0.260.25PP+25玻纤PVC0.14软质PVC0.17硬质PS0.08PU0.25Rubber橡胶0.19-0.26Si150Silica纯硅胶0.35中密度硅胶0.17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-

5、67Snow新下的雪0.1填实了的雪0.21STCGI750STCG II600-700Steel36-540.5%C殷钢11温度 30Ti纯钛14.63Water水0.5-0.7重水0.559水蒸汽0.0235-0.025重水蒸汽0.072Wood木材0.14-0.17横向木材0.38纵向落叶松木0.13温度 0普通松木0.08-0.11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 20Zi112ZL102168ZL1041551070 型铝合金2261050 型铝合金209AL60636063 型铝合金201AL6061

6、6061 型铝合金155-160AL7075130泡沫塑料0.045环氧树脂0.2-2.2普通粘土砖0.7-0.8耐火砖1.06水泥沙0.91.28拌石水泥1.5瓷砖1.99石棉0.15-0.37温度 0玄武岩2.18花岗岩2.63.6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0.060.14铸铁4290不锈钢17铸铝138147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0.22-0.29温度 50镍铝锰合金32.7温度 0镍铬合

7、金12.3-171温度 30纸0.06-0.13温度 12纸板0.14皮棉0.03温度 4.1皮革0.18-0.19矿渣棉0.05-0.14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玄武岩2.177花岗石2.68 3.35丙酮0.177苯0.139已烷0.152二氯乙烷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

8、聚苯板0.04胶合板0.125木工板0.1-0.2纤维素0.46丝0.04-0.05炉渣0.84硬质胶0.18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)铜8900380硅合金铝2800160黄铜8400120铁780050窗框不锈钢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%玻璃纤维 14500.3热断桥高密度聚乙烯HD9800.5低密度聚乙烯LD9200.33固体聚

9、丙烯9100.22温度 0温度 0温度 0温度 20温度 50温度 5025%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纯硅胶12000.35密封条柔性 PVC12000.14聚脂马海毛0.14柔性橡胶泡末60-800.05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密封剂聚异丁烯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

10、.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58.2 203 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5×9×5 3.265×12×5 3.11一层中空玻璃5×9×5×9×5 2.22 - 5 ×12×5×12×5 2.08Lhw-E 中空玻璃5×12×5 1.71常用材料导热系数-深圳智通电子有限公司提供MetalMaterialCo

11、nductivityDensityW/m-Ckg/m 3Aluminum, 2024, Temper-T31212.80E+03Aluminum, 2024, Temper-T3511432.80E+03Aluminum, 2024, Temper-T41212.80E+03Aluminum, 5052, Temper-H321382.68E+03Aluminum, 5052, Temper-O1442.69E+03Aluminum, 6061, Temper-O1802.71E+03Aluminum, 6061, Temper-T41542.71E+03Aluminum, 6061, Tem

12、per-T61672.71E+03Aluminum, 7075, Temper-O1302.80E+03Aluminum, 7075, Temper-T61302.80E+03Aluminum, 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.

13、5%Al-1%Cu1372.66E+03Aluminum, Pure2202.71E+03Beryllium, Pure1751.85E+03Brass, Red, 85%Cu-15%Zn1518.80E+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,

14、Constantan, 60%Cu-40%Ni22.78.92E+03Copper, Drawn Wire2878.80E+03Copper, German silver, 62%Cu-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.

15、85E+03Kovar, 54%Fe-29%Ni-17%Co16.38.36E+03Lead, Pure351.14E+04Magnesium, Mg-Al, Electrolytic, 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, Pure4

16、181.05E+04Solder, Hard, 80%Au-20%Sn571.50E+04Solder, Hard, 88%Au-12%Ge881.50E+04Solder, Hard, 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,

17、Carbon, 1.0%C437.80E+03Steel, Carbon, 1.5%C367.75E+03Steel, Chrome, Cr0%737.90E+03Steel, Chrome, Cr1%617.87E+03Steel, Chrome, Cr20%227.69E+03Steel, Chrome, Cr5%407.83E+03Steel, Chrome-Nickel, 15%Cr-10%Ni197.87E+03Steel, Chrome-Nickel, 18%Cr-8%Ni16.37.82E+03Steel, Chrome-Nickel, 20%Cr-15%Ni15.17.83E+

18、03Steel, Chrome-Nickel, 25%Cr-20%Ni12.87.87E+03Steel, Invar, 36%Ni10.78.14E+03Steel, Nickel, Ni0%737.90E+03Steel, Nickel, Ni20%197.93E+03Steel, Nickel, Ni40%108.17E+03Steel, Nickel, Ni80%358.62E+03Steel, SAE 1010597.83E+03Steel, SAE 1010, Sheet63.97.83E+03Steel, Stainless, 31616.268.03E+03Steel, Tun

19、gsten, W0%737.90E+03Steel, Tungsten, W1%667.91E+03Steel, Tungsten, W10%488.31E+03Steel, Tungsten, W5%548.07E+03Tin, Cast, Hammered62.57.35E+03Tin, Pure647.30E+03Titanium15.64.51E+03Tungsten1801.94E+04Zinc, Pure112.27.14E+03Non-MetalConductivityDensityMaterialW/m-Ckg/m3ABS-Plastic0.251.01E+03Acetals0

20、.31.42E+03Acrylic0.061.19E+03Alkyds0.852.00E+03Alumina, 96%213.80E+03Alumina, Pure373.90E+03Asbestos, Asbestos-sheets0.166No DataAsbestos, Cement2.08No DataAsbestos, Cement-boards0.74No DataAsbestos, Corregated, 4plies/in0.087No DataAsbestos, Felt, 20 lam/in0.078No DataAsbestos, Felt, 40 lam/in0.057

21、No DataAsbestos, Loosely-packed0.154520Asphalt0.75No 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

22、, Fireclay1.042.00E+03Brick, Magnesite3.81No DataCarbon6.92No 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, Ground0.043150C

23、ork, Regranulated0.04580Diamond, Film7003.50E+03Diamond, Type IIA2.00E+03No DataDiamond, Type IIB1.30E+03No DataDiatomaceous earth0.061320E-Glass Fiber0.892.54E+03Epoxy, High Fill2.163No DataEpoxy, No Fill0.207No DataFelt, Hair0.036265Felt, Wool0.052330Fiber insulating board0.048240FR4 Epoxy Glass,

24、1oz Copper9.11No DataFR4 Epoxy Glass, 2 oz Copper17.71No DataFR4 Epoxy Glass, 4oz Copper35.15No DataFR4 Epoxy Glass, no Copper0.2941.90E+03Glass, Borosilicate1.092.20E+03Glass, Pyrex1.022.23E+03Glass, Window0.782.70E+03Glass, Wool, 1.5lb/ft 30.03824Insulex, dry0.064No DataKapok0.035No DataKapton0.15

25、6No DataMagnesia, 85%0.067270Mica0.71No DataMylar0.19No DataNylon0.2421.10E+03Phenolic, Paper based0.277No DataPhenolic, Plain0.519No DataPlaster, Gypsum0.481.44E+03Plaster, Metal lath0.47No DataPlaster, Wood lath0.28No DataPlexiglass0.19No DataPolycarbonate0.191.20E+03Polyethylene, High density0.5950Polyethylene, Low density0.35920Polyethylene, Medium density0.4930Polystyrene0.106No DataPolyvinyl chloride0.16No DataPyrex1.26No Data