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1、常用金属材料的热膨胀系数Material10-6 in./in.*/F10-5 in./in.*/CHighLowHighLow锌及其合金Zinc & its Alloysc19.310.83.51.9铅及其合金Lead & its Alloysc16.314.42.92.6镁合金 Magnesium Alloysb16142.82.5铝及其合金 Aluminum & its Alloysc13.711.72.52.1锡及其合金Tin & its Alloysc13-2.3-锡铝黄铜 Tin & Aluminum Brassesc11.810.32.11.8黄铜或铅黄铜 Plain & Lea
2、ded Brassesc11.6102.11.8银 Silverc10.9-2-铬镍耐热钢 Cr-Ni-Fe Superalloysd10.59.21.91.7Heat Resistant Alloys (cast)d10.56.41.91.1Nodular or Ductile Irons (cast)c10.46.61.91.2不锈钢 Stainless Steels (cast)d10.46.41.91.1锡青铜 Tin Bronzes (cast)c10.3101.81.8奥氏体不锈钢 Austenitic Stainless Steelsc10.291.81.6磷硅青铜 Phosph
3、or Silicon Bronzesc10.29.61.81.7铜 Coppersc9.8-1.8-Nickel-Base Superalloysd9.87.71.81.4铝青铜 Aluminum Bronzes (cast)c9.591.71.6Cobalt-Base Superalloysd9.46.81.71.2铍(青)铜 Beryllium Copperc9.3-1.7-Cupro-Nickels & Nickel Silversc9.591.71.6镍及其合金 Nickel & its Alloysd9.26.81.71.2铬镍钻耐热钢 Cr-Ni-Co-Fe Superalloys
4、d9.181.61.4合金钢 Alloy Steelsd8.66.31.51.1Carbon Free-Cutting Steelsd8.48.11.51.5铸造合金钢 Alloys Steels (cast)d8.381.51.4Age Hardenable Stainless Steelsd8.25.51.51金 Goldc7.9-1.4-High Temperature Steelsd7.96.31.41.1Ultra High Strength Steelsd7.65.71.41Malleable Ironsc7.55.91.31.1Titanium Carbide Cermetd7.
5、54.31.30.8Wrought Ironsc7.4-1.3-钛及其合金 Titanium & its Alloysd7.14.91.30.9钻 Cobaltd6.8-1.2-马氏体不锈钢 Martensitic Stainless Steelsc6.55.51.21渗氮钢 Nitriding Steelsd6.5-1.2-钯 Palladiumc6.5-1.2-铍 Berylliumb6.4-1.1-Chromium Carbide Cermetc6.35.81.11钍 Thoriumb6.2-1.1-铁素体不锈钢 Ferritic Stainless Steelsc65.81.11Gra
6、y Irons (cast)c6-1.1-Beryllium Carbided5.8-1-Low Expansion Nickel Alloysc5.51.510.3Beryllia & Thoriae5.3-0.9-Alumina Cermetsd5.24.70.90.8Molybdenum Disilicidec5.1-0.9-Rutheniumb5.1-0.9-Platinumc4.9-0.9-Vanadiumb4.8-0.9-Rhodiumb4.6-0.8-Tantalum Carbided4.6-0.8-Boron Nitrided4.3-0.8-铌及其合金 Columbium &
7、its Alloys4.13.80.70.68Titanium Carbided4.1-0.7-Steatitec43.30.70.6Tungsten Carbide Cermetc3.92.50.70.4铱 Iridiumb3.8-0.7-Alumina Ceramicsc3.73.10.70.6乙 rconium Carbided3.7-0.7-Osmium and Tantalumb3.6-0.6-锆及其合金 Zirconium & its Alloysb3.63.10.60.55Hafniumb3.4-0.6-乙 rconiae3.1-0.6-钼及其合金 Molybdenum & it
8、s Alloys3.12.70.60.5Silicon Carbidee2.42.20.40.39钨 Tungstenb2.2-0.4-Electrical Ceramicsc2-0.4-Zirconc1.81.30.30.2Boron Carbidee1.7-0.3-Carbon and Graphitec1.51.30.30.2金属名称元素符a线性热膨胀系 数金属名 称元素符弓线性热膨胀系 数镀Be12.3铝A123.2Sb10.5铅Pb29.3铜Cu17.5镉Cd41.0袴Cr6.2铁Fe12.2错Ge6.0金Au14.2铁lx6.5Mg26.0猛Mn2 3.0Mo5.2Ni13.0钳P
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