Mill Finish Aluminum
AMD Supply offers a wide range of mill finish aluminum product to our general contractors throughout the Tri-County area in South Florida, Puerto Rico, and export to Latin America and the Caribbean.
What is meant by “Mill Finish” is aluminum in its original form and appearance as its comes directly from the rolling mill (Alcoa, Reynolds, Kaiser, or Alcan) or an aluminum extrusion mill.
6061 vs 6063
6061 aluminum is heat treatable and stronger versus 6063 aluminum which is softer and used for complicated shapes. You can learn more about the differences between 6061 vs 6063 alloy at this blog post.
AMD Supply carries in stock and available for wholesale pricing, both aluminum alloys in mill finish:
6061 ALUMINUM
6061 ALLOY is heat treatable, resists stress cracks, and is easy to weld. It is ideal for structural projects. We offer our clients in Miami and throughout South Florida with the best priced 6061 aluminum that comes in a range supply of both unpainted and standard as well as customized aluminum shapes for your project:
- Structural Channels
- Structural Angles
- Flat Bars
- Round Tube
- Pipes
- Rectangular Tubes
- Square Tube
- Rounds Rods
If you are looking for Aluminum in Mill Finish or need a customized aluminum shape in the Miami – South Florida area (Palm Beach, Broward, Miami – Dade County) please call AMD Supply at 786-671-0700 or visit the contact page by clicking here.


6063 ALUMINUM
AMD Supply offers 6063 aluminum in a range of unpainted standard and customized aluminum shapes and tubing. AMD Supply works closely with you to develop any customized aluminum extrusions or custom tubing you may need in 6063 alloy for your construction projects.
Our inventory of customized aluminum painted shapes includes:
- Square Tubes
- Rectangular Tube
- Equal Leg Angles
- Unequal Leg Angles
- Top Caps (fence and rail)
- Flat Bars
- Pipes
- Tubes
- Square Bars
- Round Rods
- Channels
WHAT IS MILL FINISHED ALUMINUM?
“Mill Finish Aluminum” is the natural appearance of the aluminum as it comes from the rolling mill (Alcoa, Reynolds, Kaiser, or Alcan) or the extrusion mill.
It is “as is” with no external mechanical or chemical finishing. Extruded metal is considered “mill finish”. All aluminum has an oxide of some varying thickness. Anodizing is a very heavy controlled oxide.
Anodizing is an electrolytically formed and controlled heavy oxide 0.0003 inches thick on up the 0.002 and on up. Mill Finish is a very lightly oxidized film and will wipe off with your bare finger and immediately form.
Rolled sheet would probably have a thinner oxide than hot extruded aluminum. If you want to bond silicone adhesive then you want a phosphate etch, or a light chromate or a thin (.0004 anodize in either chromic, sulfuric, or phosphoric.)
If you anodize, do not seal the coating and be sure your anodizer knows you do not want it sealed.
