不同温度下金属材料的线膨胀系数一览表

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1、不同温度下金属材料的线膨胀系数一览表材料在下列温度与20℃之间的平均线膨胀系数，“α”，10-6×℃-1-196-150-100-50050100150200250300350400450500550600650700750800碳素钢、碳钼钢、低铬钼钢（至Cr3Mo）9.19.449.8910.3910.7611.1211.5311.8812.2512.5612.9013.2413.5813.9314.2214.4214.6214.7414.9015.02—铬钼钢（Cr5Mo～Cr9Mo）8.468.909.3

2、69.7710.1610.5210.9111.1511.3911.6611.9012.1512.3812.6312.8613.0513.1813.3513.4813.58—奥氏体不锈钢（Cr18-Ni9）14.6715.0815.4515.9716.2816.5416.8417.0617.2517.4217.6117.7917.9918.1918.3418.5818.7118.8718.9719.0719.29高铬钢（Cr13、Cr17）7.748.108.448.959.299.599.9410.2010.45

3、10.6710.9611.1911.4111.6111.8111.9712.1112.2112.3212.41—Cr25-Ni20——————15.8415.9816.0516.0616.0716.1116.1316.1716.3316.5616.6616.9117.1417.20—蒙纳尔（Mone1）Ni67-Cu309.9911.0612.1312.8313.2613.6914.1614.4514.7415.0615.3615.6715.9816.2816.6016.9017.1517.4717.7718.0

4、7—铝17.8218.7319.5820.7921.7322.5223.3823.9424.4424.9425.42——————————灰铸铁10.3910.6810.9711.2611.5511.8512.1412.4212.71——————青铜15.1215.4415.7616.3516.9717.5118.0718.2318.4018.5518.7318.8819.0419.2019.3419.4919.7119.85———黄铜14.7615.0315.3415.9216.5617.1117.6218.19

5、18.3818.7719.1419.5019.8920.2720.6621.0521.3421.77———Cu70-Ni3011.9712.6513.4313.9914.4814.9415.4115.6915.99————————————