McMaster 1-1/2" x 18" x 18" $348, 1-1/2" x 12" x 48" $619
We use a lot of MIC6 where I work, was never sure if it was ground or milled but the tooling marks are obvious when bought, I assumed it was either milled or Blanchard ground. Never read the literature before, thanks. That must be one hell of a mill that they use.
Suppliers must buy it in stock produced plate dimensions which is then sawn to a customers requirements, a company that moves a great deal of it will have tons of saw drops which in excellent condition (when new it has a clear protective plastic cover on both sides) with the scrim intact, it sells for slightly less then the stock, when the protective cover is compromised it sells at scrap cast aluminum prices, this is exactly where the drops go if they can't sell them. It is rapidly stained by water which will render it unsuitable for uniform anodizing. It welds well yet as common to most aluminum alloys a weld will be obvious after the anodizing process.
