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  1. #1
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    What grade aluminium sheet to use

    What grade aluminium sheet should I use? There are so many grades available.

    The sheet needs to be malleable, corrosion resistance and I am looking to achieve a polished to a mirror finish.

    Radiator cowling - 2mm
    Boot sheeting and front nose cowling-2mm
    Centre Tunnel and back. 2mm

    Folding and pop rivets with minimum welding is my fixing method.
    Also is 2mm thickness fine for all these areas?

  2. #2
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    1.5mm will be fine.
    1050 H14 grade should be fine for what you mention.
    If you are polishing it, then you can wax it to protect against corrosion.
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  3. #3
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    Agree with Dave, 1.5mm is ample. Not totally convinced on the corrosion side as aluminium does corrode quite easily. I would have gone with st/st and it is surprisingly cheap off ebay. 304 or 316st/st is best bet.
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  4. #4
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    Thanks Dave

    Charlie. I might use stainless in certain areas as should keep the shine longer. A bit harder to form I might need a small folder.

  5. #5
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    If you do go for stainless. Get 430 Bright Annealed. 0.7mm is much easier to fold than anything thicker.
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  6. #6
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    Thanks Dave.

    Found this which seems very reasonable.

    Stainless Steel Sheet 333 x 333 x 0.9 mm type 430 Bright Annealed x 1 off at £18.00 a sheet. or

    Stainless Steel Sheet Bright Polish 0.9mm 1000mm x 500mm at £35.00 a sheet.

    I will be busy with my cardboard.

  7. #7
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    If you're going to attach sheet to sheet with rivets, or even welding, you might want to invest in some Cleco pins and pliers - they are next on my list for when I start doing the radiator & oil cooler surrounds.. relatively inexpensive on eBay (check out this seller: https://www.ebay.co.uk/str/skinpins/...at=26616944012)
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  8. #8
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    That 0.9mm is a lot harder to fold than 0.7mm.... been there!!!
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  9. #9
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    Quote Originally Posted by dave View Post
    That 0.9mm is a lot harder to fold than 0.7mm.... been there!!!
    It's not a linear progression, is it.. there's probably some complicated maths that says it's exponentially harder the thicker the material is - that's how it feels, at any rate!

    OK, there is - page 16: https://www.dropbox.com/s/m28sftv7hx...27.25.png?dl=0

    I'll leave someone else to do the calculations
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  10. #10
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    Aaron. I looked at the calculation and its like being back at college lol
    Working out radius bends and setting up on a fly press. I think that calculation is for die stamping lol

    That's interesting that 0.2mm makes so much difference for folding but I go with the Dave@s knowledge and experience. I could always use the 0.9mm if its just sheet area. I think most will require some folding or bending to a degree.

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