Quote:
Originally Posted by Baz
Mike,
Neil Streeting made my tank from 3mm aluminium. In his opinion, this is the absolute minimum thickness which he would use. He stated that as the tank expands and contracts through a number of interacting factors, splits and leaks will occur on anything thinner than 3mm.
Baz
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If I was making it from Aluminium I reckon I'd use 3mm too. I'm planing on doing mine from Stainless which has a different modulus of elasticity and thermal expansion rates. It also has significantly higher tensile strength for its thickness.
I think a major factor in cracking is also how the tank is mounted. It needs to float independent of any chasis twisting. It also needs to be sufficiently supported as 70L of fuel can weigh a fair bit.
Cheers