金属的热膨胀系数及计算公式

材质

软钢NAK80SKD61SKH51

硬质合金 V40SUS440C

无氧钢 C10206/4黄铜 C2801铍铜 C1720铝 A1100硬铝 A7075铝合金纯铝钛

灰铸铁一般铸铁铸铁

一般碳钢马氏体不锈钢奥氏体不锈钢不锈钢铬钢镍钢铜青铜黄铜康铜铬铅锡锌镁钨钛镍镉锰铍锗铱钼铂银金

窗玻璃工业玻璃普通玻璃拍热克斯玻璃玻璃陶瓷瓷器砖钢筋

热膨胀系数*10-6/℃

11.712.510.810.1610.217.620.817.123.623.623.8238.4910.510.511.51.011.6

14.4-16

11.51418.517.518.415.26.229.326.736264.510.813412312.366.55.2919.514.27.64.57.13.250.1351.2

长度/直径mm

10010010010010010010010010010010055100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100100

温度 ℃

10

-6

1000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.0000011000.000001100

0.000001

变化量0.1170.1250.1080.1010.060.1020.1760.2080.1710.2360.2360.13090.230.0840.090.1050.1050.1150.01010.016

#VALUE!

0.1150.140.1850.1750.1840.1520.0620.2930.2670.360.260.0450.1080.130.410.230.1230.060.0650.0520.090.1950.1420.0760.0450.0710.03250.0010.030.050.012

混凝土1.0-1.51001000.000001水泥6.0-141001000.000001花岗岩31001000.000001石墨21001000.000001尼龙1201001000.000001聚甲基丙烯酸甲（PMMA）

（PMMA）（）851001000.000001聚氯乙烯（PVC）801001000.000001碳纤维（HM 35 inLangsrichtung）-0.51001000.000001木头81001000.000001食盐401001000.000001冰 0℃1001000.000001 1、热膨胀引起的尺寸变化计算方法 例：材质为SKD61

D=2、L=100mm的杆温度上升100摄氏度时的尺寸变化量为：δ δ=热膨胀系数*全长*温度变化 =10.8*10-6*100mm*100℃ =0.108mm

#VALUE!#VALUE!

0.030.021.20.850.8-0.0050.080.40