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  • 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

  • Lovely jubbly. I did look it up but I just found a load of people infighting about the correct way to do it and it hurt my head

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