Table of linear expansion coefficients of metals
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This post was last edited by WQC on 2010-11-6 at 13:30. Could anyone please provide a table of the linear expansion coefficients of metals? It’s urgent. This post was last edited by chinazwr on 2009-1-4 21:27]
How to use the average linear expansion coefficient value of metal materials – in what situations is it used? Besides temperature
Why do I feel that the unit in the data table is incorrect? It should be α/10^-6 mm/(mm·℃)
I found it, but I don’t know how to use it. What does the unit for this coefficient of expansion mean?
The expansion coefficient X (temperature – ambient temperature) represents the amount of expansion per unit length. For example, according to tables, the expansion coefficient of carbon steel at 400°C is 13.58 (10-6/°C). Therefore, the amount of expansion per unit length is equal to 13.58 x 10-6 x (400 – 20) = 5.1604 x 10-3. In other words, a 1 mm long carbon steel pipe expands by 5.1604 x 10-3 mm at 400°C; thus, a 1 m long carbon steel pipe expands by 5.1604 mm at that temperature.