Choosing raw materials metal stock means sorting by alloy, shape, and working area before you think about price. In this set, 6061 aluminum appears in three different configurations and 12L14 steel appears as a round rod. The listed prices run from $22.81 for the steel bar stock to $158.08 for the largest aluminum plate, so the right pick depends mostly on whether you need a flat blank, a longer plate, or round lathe stock.
Quick take
The 6061 Aluminum Flat Bar (1/2" x 8" x 8") suits a compact flat piece. The 6061 Aluminum Plate (1/4" x 12" x 24") is the thinner, longer option. The 1/2" x 16" x 19" Aluminum 6061 Sheet Plate is the widest flat surface. The 12L14 Steel Bar Stock is the only round steel rod in this group and has the lowest listed price.
Listed-price comparison
| Product | Listed price | Price bar |
|---|---|---|
| 6061 Aluminum Flat Bar, 1/2" x 8" x 8" long | USD 40.99 | |
| 6061 Aluminum Plate, 1/4" x 12" x 24" Long | USD 83.59 | |
| 1/2" x 16" x 19" ALUMINUM 6061 Sheet Plate | USD 158.08 | |
| 12L14 Steel Bar Stock, 1 in Round x 12 in Long | USD 22.81 |
Decision matrix
| If you need... | Strong match |
|---|---|
| A compact flat bar with 1/2" thickness | 6061 Aluminum Flat Bar, 1/2" x 8" x 8" |
| A longer aluminum plate for bigger cuts | 6061 Aluminum Plate, 1/4" x 12" x 24" |
| The largest flat aluminum blank in this set | 1/2" x 16" x 19" Aluminum 6061 Sheet Plate |
| Round steel stock for lathe work | 12L14 Steel Bar Stock, 1 in Round x 12 in Long |
Product notes
6061 Aluminum Flat Bar, 1/2" x 8" x 8" long, Solid Stock, Plate, Machining
The main reason to choose this piece is its compact flat-bar format: an 8-inch length and 8-inch width in 6061 aluminum with a 1/2-inch thickness. That makes it a straightforward blank for a smaller machining job or prototype plate. The stated thickness/width tolerance is -0.002" to +0.020", and length tolerance is +0.000" to +0.250". Keep the limitation in mind: this is machined finish with normal scratches or nicks, and the surface is not intended to be a finished cosmetic surface. If you need a larger surface area than 8" x 8", one of the bigger plates in this comparison is a better direction.
6061 Aluminum Plate, 1/4" x 12" x 24" Long, Solid Stock, Machining, T651
The strength of this option is the longer rectangular footprint. At 1/4" thick, 12" wide, and 24" long, it gives you more uninterrupted linear working area than the 8" x 8" flat bar. It has a T651 temper, a machined finish, and a stated thickness tolerance of -0.005" to +0.005". The trade-off is section thickness: at 1/4", it is thinner than the 1/2"-thick aluminum flat bar and the 1/2" plate in this set. If your project needs maximum stiffness through the material, you would gain that from one of the 1/2"-thick options. For a longer plate cut, this is the one that matches.
1/2" x 16" x 19" ALUMINUM 6061 Sheet Plate .50" Thick T6 Solid Stock Cut New
This is the largest flat surface in the group by width and length: 16" x 19" at a full 1/2" thickness, with T6 temper in the title. It gives you the most usable plate area for cutting larger components or laying out multiple parts. It is cut new from 0.50" plate. The limitation is that it is the highest-priced item in the set, so you are paying for the bigger blank. If you do not need a 16" x 19" footprint, the 12" x 24" plate is longer but narrower, and the 8" x 8" flat bar takes up far less space. Use the wide plate when your layout genuinely requires that area.
12L14 Steel Bar Stock 1 in Round x 12 in Long CNC Lathe Metal
This product is the only round rod in the comparison, and it is also the only steel option: a 1-inch outside diameter, 12-inch-long round bar in 12L14, from Oakland Steel Inc. It is the lowest-priced item in the comparison, and it is brand new and unmodified, made in the United States. The 12L14 grade suits machinability in CNC lathe work, matching the CNC lathe wording in the title. The limitation is its shape: round stock cannot replace a flat plate or flat bar, so it is not the right choice for a flat blank. If your project calls for round stock on a lathe, this is the matching material.
Final recommendation by use case
Pick the 6061 Aluminum Flat Bar when you need a compact flat piece. Choose the 6061 Aluminum Plate when you want a thinner, longer rectangular plate. Go with the wide Aluminum 6061 Sheet Plate when the job calls for a big flat blank. Select the steel round bar stock when your work is round stock for CNC lathe use.
