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
@PhilDAS started
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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