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PhilDAS

If an aluminium tube is 42mm OD at room temperature, what would the OD be when heated uniformly to 120 deg C?

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gbj_tester in reply to @PhilDAS

You can calculate this for yourself, but 42.1mm.
α=2.1 to 2.4×10^-5.K^-1 depending on which aluminium alloy
ΔT=100K
42×(1+(2.1×10^-5×100))=42.09
42×(1+(2.4×10^-5×100))=42.10

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