不同温度下金属材料的线膨胀系数一览表(1 页)Good is good, but better carries it.精益求精，善益求善。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）9.19.449.8910.39 10.76 11.12 11.53 11.88 12.25 12.56 12.90 13.24 13.58 13.93 14.22 14.42 14.62 14.74 14.90 15.02 —铬钼钢（Cr5Mo～Cr9Mo）8.468.909.369.7710.16 10.52 10.91 11.15 11.39 11.66 11.90 12.15 12.38 12.63 12.86 13.05 13.18 13.35 13.48 13.58 —奥氏体不锈钢（Cr18-Ni9）14.67 15.08 15.45 15.97 16.28 16.54 16.84 17.06 17.25 17.42 17.61 17.79 17.99 18.19 18.34 18.58 18.71 18.87 18.97 19.07 19.29高铬钢（Cr13、 Cr17）7.748.108.448.959.299.599.9410.20 10.45 10.67 10.96 11.19 11.41 11.61 11.81 11.97 12.11 12.21 12.32 12.41 —Cr25-Ni20——————15.84 15.98 16.05 16.06 16.07 16.11 16.13 16.17 16.33 16.56 16.66 16.91 17.14 17.20 —蒙 纳 尔（Mone1）Ni67-Cu309.9911.06 12.13 12.83 13.26 13.69 14.16 14.45 14.74 15.06 15.36 15.67 15.98 16.28 16.60 16.90 17.15 17.47 17.77 18.07 —铝17.82 18.73 19.58 20.79 21.73 22.52 23.38 23.94 24.44 24.94 25.42 ——————————灰铸铁10.39 10.68 10.97 11.26 11.55 11.85 12.14 12.42 12.71 ——————青铜15.12 15.44 15.76 16.35 16.97 17.51 18.07 18.23 18.40 18.55 18.73 18.88 19.04 19.20 19.34 19.49 19.71 19.85 ———黄铜14.76 15.03 15.34 15.92 16.56 17.11 17.62 18.19 18.38 18.77 19.14 19.50 19.89 20.27 20.66 21.05 21.34 21.77 ———Cu70-Ni3011.97 12.65 13.43 13.99 14.48 14.94 15.41 15.69 15.99 ————————————~…：。？~.[~："(—【"'||！》)：%！）]}~<~
