# Aluminum flat bar and round bar sizes (6061-T6): 64 flat sizes 1/8 x 1/2 to 1-1/4 x 3, 37 round diameters 1/4 to 10 in, with weight per foot

> What sizes does 6061 aluminum flat bar and round bar come in, and how much does it weigh per foot?

- Category: Hardware › Materials & stock
- Kind: Standard part
- Basis: Russel Metals 6061-T6 flat and round bar tables (weights checked against the section), Remington and Online Metals size lists; numbers only
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**Exact dimensions.** True size, with no tolerance added.

## Notes

- Flat bar: the 64 thickness x width sizes of Russel Metals' 6061-T6 aluminum flat bar table (extruded rectangle bar, 1/8 x 1/2 up to 1-1/4 x 3) with weight per foot as printed. Remington Industries lists the option set thickness 1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 1 in by width 1/2, 1, 1-1/2, 2, 2-1/2, 3, 4, 6, 8 in (which combinations are stocked is not stated); 'yes' in column 7 means both the thickness and the width are in Remington's option set, not that the combination is stocked. Sizes outside Remington's set (3/16 thickness, 5/8 and 1-1/4 widths) are Russel-only.
- Weights: each Russel weight was recomputed from the section at 0.0975 lb/in³ (2.70 g/cm³) as a sanity check. All but three agree within 3 %. Russel's 1/2 x 1-1/4 (0.785, section 0.731 and between 0.587 and 0.881 for its neighbours 1/2 x 1 and 1/2 x 1-1/2), 3/4 x 6 (4.391) and 3/4 x 8 (5.287) do not: the section gives 5.27 and 7.02 lb/ft, and 4.391 is also lower than 3/4 x 4 (3.524) scaled by 1.5 (5.29). The 3/4 x 6 and 3/4 x 8 weights look misplaced on that page (5.287 ≈ the 3/4 x 6 section weight), so all three are flagged, not corrected; the sizes themselves are kept.
- Round bar: Russel Metals' 6061-T6 round bar table, 37 diameters from 1/4 to 10 in with weight per foot (all within 3.5 % of the section weight). Remington's 'round rod' list is 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8, 1-1/2, 1-3/4, 2 in (14 sizes, all on Russel's list); Online Metals' listing titles name 3/4, 1, 1-3/8, 1-3/4, 1-7/8, 2-1/2, 2-3/4, 3-1/2, 4 and 6-1/2 in (6061-T651 cold finish or T6511 extruded; the 6-1/2 in is not on Russel's list; one more listing is named '14', which is not read as a size). Russel also lists 2011-T3 free-machining round bar in 1/8 to 2 in (31 sizes, not tabulated here).
- Tolerances, lengths (Remington lists lengths of 1 to 48 in cut-to-length) and tempers beyond the ones named are not tabulated. 1018 steel and 6061 square aluminum bar: bar-stock-sizes-round-square-steel-aluminum. Stainless: stainless-steel-round-and-flat-bar-sizes.
- No STEP/STL: round and rectangular bar are plain cylinders and boxes.

## Sizes

| product | size (in, fractions) | decimal (in) | mm | lb/ft (Russel Metals, as printed) | on Russel's list | also on Remington's / Online Metals' list | check |
|---|---|---|---|---|---|---|---|
| flat bar 6061-T6 | 1/8 x 1/2 | 0.125 x 0.5 | 3.17 x 12.70 | 0.073 | yes | yes | — |
| flat bar 6061-T6 | 1/8 x 5/8 | 0.125 x 0.625 | 3.17 x 15.88 | 0.091 | yes | — | — |
| flat bar 6061-T6 | 1/8 x 3/4 | 0.125 x 0.75 | 3.17 x 19.05 | 0.11 | yes | — | — |
| flat bar 6061-T6 | 1/8 x 1 | 0.125 x 1 | 3.17 x 25.40 | 0.147 | yes | yes | — |
| flat bar 6061-T6 | 1/8 x 1-1/4 | 0.125 x 1.25 | 3.17 x 31.75 | 0.184 | yes | — | — |
| flat bar 6061-T6 | 1/8 x 1-1/2 | 0.125 x 1.5 | 3.17 x 38.10 | 0.22 | yes | yes | — |
| flat bar 6061-T6 | 1/8 x 2 | 0.125 x 2 | 3.17 x 50.80 | 0.294 | yes | yes | — |
| flat bar 6061-T6 | 1/8 x 3 | 0.125 x 3 | 3.17 x 76.20 | 0.44 | yes | yes | — |
| flat bar 6061-T6 | 1/8 x 4 | 0.125 x 4 | 3.17 x 101.60 | 0.588 | yes | yes | — |
| flat bar 6061-T6 | 3/16 x 3/4 | 0.1875 x 0.75 | 4.76 x 19.05 | 0.165 | yes | — | — |
| flat bar 6061-T6 | 3/16 x 1 | 0.1875 x 1 | 4.76 x 25.40 | 0.22 | yes | — | — |
| flat bar 6061-T6 | 3/16 x 1-1/4 | 0.1875 x 1.25 | 4.76 x 31.75 | 0.275 | yes | — | — |
| flat bar 6061-T6 | 3/16 x 1-1/2 | 0.1875 x 1.5 | 4.76 x 38.10 | 0.331 | yes | — | — |
| flat bar 6061-T6 | 3/16 x 2 | 0.1875 x 2 | 4.76 x 50.80 | 0.441 | yes | — | — |
| flat bar 6061-T6 | 3/16 x 2-1/2 | 0.1875 x 2.5 | 4.76 x 63.50 | 0.551 | yes | — | — |
| flat bar 6061-T6 | 1/4 x 1/2 | 0.25 x 0.5 | 6.35 x 12.70 | 0.147 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 3/4 | 0.25 x 0.75 | 6.35 x 19.05 | 0.221 | yes | — | — |
| flat bar 6061-T6 | 1/4 x 1 | 0.25 x 1 | 6.35 x 25.40 | 0.294 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 1-1/4 | 0.25 x 1.25 | 6.35 x 31.75 | 0.367 | yes | — | — |
| flat bar 6061-T6 | 1/4 x 1-1/2 | 0.25 x 1.5 | 6.35 x 38.10 | 0.441 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 2 | 0.25 x 2 | 6.35 x 50.80 | 0.587 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 2-1/2 | 0.25 x 2.5 | 6.35 x 63.50 | 0.734 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 3 | 0.25 x 3 | 6.35 x 76.20 | 0.881 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 4 | 0.25 x 4 | 6.35 x 101.60 | 1.175 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 5 | 0.25 x 5 | 6.35 x 127.00 | 1.47 | yes | — | — |
| flat bar 6061-T6 | 1/4 x 6 | 0.25 x 6 | 6.35 x 152.40 | 1.764 | yes | yes | — |
| flat bar 6061-T6 | 1/4 x 8 | 0.25 x 8 | 6.35 x 203.20 | 2.352 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 3/4 | 0.375 x 0.75 | 9.52 x 19.05 | 0.331 | yes | — | — |
| flat bar 6061-T6 | 3/8 x 1 | 0.375 x 1 | 9.52 x 25.40 | 0.441 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 1-1/4 | 0.375 x 1.25 | 9.52 x 31.75 | 0.551 | yes | — | — |
| flat bar 6061-T6 | 3/8 x 1-1/2 | 0.375 x 1.5 | 9.52 x 38.10 | 0.661 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 2 | 0.375 x 2 | 9.52 x 50.80 | 0.881 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 2-1/2 | 0.375 x 2.5 | 9.52 x 63.50 | 1.101 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 3 | 0.375 x 3 | 9.52 x 76.20 | 1.322 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 4 | 0.375 x 4 | 9.52 x 101.60 | 1.762 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 5 | 0.375 x 5 | 9.52 x 127.00 | 2.2 | yes | — | — |
| flat bar 6061-T6 | 3/8 x 6 | 0.375 x 6 | 9.52 x 152.40 | 2.646 | yes | yes | — |
| flat bar 6061-T6 | 3/8 x 8 | 0.375 x 8 | 9.52 x 203.20 | 3.528 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 3/4 | 0.5 x 0.75 | 12.70 x 19.05 | 0.441 | yes | — | — |
| flat bar 6061-T6 | 1/2 x 1 | 0.5 x 1 | 12.70 x 25.40 | 0.587 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 1-1/4 | 0.5 x 1.25 | 12.70 x 31.75 | 0.785 | yes | — | printed weight is +7% off the section weight (0.731) |
| flat bar 6061-T6 | 1/2 x 1-1/2 | 0.5 x 1.5 | 12.70 x 38.10 | 0.881 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 2 | 0.5 x 2 | 12.70 x 50.80 | 1.175 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 2-1/2 | 0.5 x 2.5 | 12.70 x 63.50 | 1.469 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 3 | 0.5 x 3 | 12.70 x 76.20 | 1.762 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 4 | 0.5 x 4 | 12.70 x 101.60 | 2.352 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 5 | 0.5 x 5 | 12.70 x 127.00 | 2.941 | yes | — | — |
| flat bar 6061-T6 | 1/2 x 6 | 0.5 x 6 | 12.70 x 152.40 | 3.529 | yes | yes | — |
| flat bar 6061-T6 | 1/2 x 8 | 0.5 x 8 | 12.70 x 203.20 | 4.704 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 1 | 0.75 x 1 | 19.05 x 25.40 | 0.881 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 1-1/2 | 0.75 x 1.5 | 19.05 x 38.10 | 1.32 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 2 | 0.75 x 2 | 19.05 x 50.80 | 1.762 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 2-1/2 | 0.75 x 2.5 | 19.05 x 63.50 | 2.205 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 3 | 0.75 x 3 | 19.05 x 76.20 | 2.643 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 4 | 0.75 x 4 | 19.05 x 101.60 | 3.524 | yes | yes | — |
| flat bar 6061-T6 | 3/4 x 6 | 0.75 x 6 | 19.05 x 152.40 | 4.391 | yes | yes | printed weight is -17% off the section weight (5.265) |
| flat bar 6061-T6 | 3/4 x 8 | 0.75 x 8 | 19.05 x 203.20 | 5.287 | yes | yes | printed weight is -25% off the section weight (7.020) |
| flat bar 6061-T6 | 1 x 1-1/2 | 1 x 1.5 | 25.40 x 38.10 | 1.762 | yes | yes | — |
| flat bar 6061-T6 | 1 x 2 | 1 x 2 | 25.40 x 50.80 | 2.35 | yes | yes | — |
| flat bar 6061-T6 | 1 x 3 | 1 x 3 | 25.40 x 76.20 | 3.524 | yes | yes | — |
| flat bar 6061-T6 | 1 x 4 | 1 x 4 | 25.40 x 101.60 | 4.699 | yes | yes | — |
| flat bar 6061-T6 | 1 x 6 | 1 x 6 | 25.40 x 152.40 | 7.049 | yes | yes | — |
| flat bar 6061-T6 | 1 x 8 | 1 x 8 | 25.40 x 203.20 | 9.398 | yes | yes | — |
| flat bar 6061-T6 | 1-1/4 x 3 | 1.25 x 3 | 31.75 x 76.20 | 4.406 | yes | — | — |
| round bar 6061-T6 | 1/4 dia | 0.25 | 6.35 | 0.058 | yes | yes | — |
| round bar 6061-T6 | 5/16 dia | 0.3125 | 7.94 | 0.09 | yes | yes | — |
| round bar 6061-T6 | 3/8 dia | 0.375 | 9.52 | 0.13 | yes | yes | — |
| round bar 6061-T6 | 7/16 dia | 0.4375 | 11.11 | 0.176 | yes | — | — |
| round bar 6061-T6 | 1/2 dia | 0.5 | 12.70 | 0.23 | yes | yes | — |
| round bar 6061-T6 | 5/8 dia | 0.625 | 15.88 | 0.36 | yes | yes | — |
| round bar 6061-T6 | 3/4 dia | 0.75 | 19.05 | 0.518 | yes | yes / Online Metals | — |
| round bar 6061-T6 | 7/8 dia | 0.875 | 22.22 | 0.706 | yes | yes | — |
| round bar 6061-T6 | 1 dia | 1 | 25.40 | 0.922 | yes | yes / Online Metals | — |
| round bar 6061-T6 | 1-1/8 dia | 1.125 | 28.57 | 1.167 | yes | yes | — |
| round bar 6061-T6 | 1-1/4 dia | 1.25 | 31.75 | 1.44 | yes | yes | — |
| round bar 6061-T6 | 1-3/8 dia | 1.375 | 34.92 | 1.743 | yes | yes / Online Metals | — |
| round bar 6061-T6 | 1-1/2 dia | 1.5 | 38.10 | 2.074 | yes | yes | — |
| round bar 6061-T6 | 1-5/8 dia | 1.625 | 41.27 | 2.434 | yes | — | — |
| round bar 6061-T6 | 1-3/4 dia | 1.75 | 44.45 | 2.823 | yes | yes / Online Metals | — |
| round bar 6061-T6 | 1-7/8 dia | 1.875 | 47.62 | 3.241 | yes | — / Online Metals | — |
| round bar 6061-T6 | 2 dia | 2 | 50.80 | 3.69 | yes | yes | — |
| round bar 6061-T6 | 2-1/4 dia | 2.25 | 57.15 | 4.67 | yes | — | — |
| round bar 6061-T6 | 2-3/8 dia | 2.375 | 60.32 | 5.2 | yes | — | — |
| round bar 6061-T6 | 2-1/2 dia | 2.5 | 63.50 | 5.76 | yes | — / Online Metals | — |
| round bar 6061-T6 | 2-5/8 dia | 2.625 | 66.67 | 6.35 | yes | — | — |
| round bar 6061-T6 | 2-3/4 dia | 2.75 | 69.85 | 6.97 | yes | — / Online Metals | — |
| round bar 6061-T6 | 3 dia | 3 | 76.20 | 8.3 | yes | — | — |
| round bar 6061-T6 | 3-1/4 dia | 3.25 | 82.55 | 9.74 | yes | — | — |
| round bar 6061-T6 | 3-1/2 dia | 3.5 | 88.90 | 11.3 | yes | — / Online Metals | — |
| round bar 6061-T6 | 3-3/4 dia | 3.75 | 95.25 | 12.99 | yes | — | — |
| round bar 6061-T6 | 4 dia | 4 | 101.60 | 14.75 | yes | — / Online Metals | — |
| round bar 6061-T6 | 4-1/4 dia | 4.25 | 107.95 | 17.02 | yes | — | — |
| round bar 6061-T6 | 4-1/2 dia | 4.5 | 114.30 | 18.67 | yes | — | — |
| round bar 6061-T6 | 4-3/4 dia | 4.75 | 120.65 | 21.27 | yes | — | — |
| round bar 6061-T6 | 5 dia | 5 | 127.00 | 23.04 | yes | — | — |
| round bar 6061-T6 | 5-1/2 dia | 5.5 | 139.70 | 27.88 | yes | — | — |
| round bar 6061-T6 | 6 dia | 6 | 152.40 | 33.93 | yes | — | — |
| round bar 6061-T6 | 7 dia | 7 | 177.80 | 46.18 | yes | — | — |
| round bar 6061-T6 | 8 dia | 8 | 203.20 | 60.32 | yes | — | — |
| round bar 6061-T6 | 9 dia | 9 | 228.60 | 76.34 | yes | — | — |
| round bar 6061-T6 | 10 dia | 10 | 254.00 | 94.25 | yes | — | — |

## Where the files are

- Russel Metals: [6061-T6 aluminum flat bar: 64 thickness x width sizes with weight per foot](https://www.russelmetals.com/en/product/aluminum-extrusions/flats/) — web — Publisher's page; dimensions are facts
- Russel Metals: [Aluminum round bar: 6061-T6 (37 diameters, 1/4 to 10 in) and 2011-T3 (31 sizes) with weight per foot](https://www.russelmetals.com/en/product/aluminum-extrusions/rounds_aluminum/) — web — Publisher's page; dimensions are facts
- Remington Industries: [Aluminum dimensions: 6061 angle, flat bar and rod size options](https://www.remingtonindustries.com/resources/aluminum-dimensions/) — web — Publisher's page; dimensions are facts
- Online Metals: [Aluminum round bar 6061-T651 cold finish / T6511 extruded: sizes named in listing titles (0.75, 1, 1.375, 1.75, 1.875, 2.5, 2.75, 3.5, 4, 6.5 in)](https://www.onlinemetals.com/en/buy/aluminum/1-aluminum-round-bar-6061-t651-cold-finish/pid/18037) — web — Publisher's page; dimensions are facts
- McMaster-Carr: [6061 / 6063 aluminum bars (rectangular, round, angle, channel and tee listed under aluminum bars and structural shapes) (free STEP/IGES per part, for your own design use; no redistribution)](https://www.mcmaster.com/products/aluminum-bars/material~aluminum-2/material~6061-aluminum/material~6063-aluminum/) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution (verify at link)

## Questions

**How much does 1/4 x 2 aluminum flat bar weigh?**

0.587 lb per foot (Russel Metals, 6061-T6); the section gives 0.585.

**What diameters does 6061 aluminum round bar come in?**

1/4, 5/16, 3/8, 7/16, 1/2, 5/8, 3/4, 7/8, 1 in and on up to 10 in (37 sizes on Russel's list; full list in the table).

**How much does 1 inch aluminum round bar weigh per foot?**

0.922 lb per foot (Russel Metals, 6061-T6).

## Fits with

- [Bar stock sizes: 1018 steel round and square 1/8 to 6 in, 6061 aluminum square 1/4 to 8 in (distributor list, inches and mm)](https://xemstudio.com/objects/bar-stock-sizes-round-square-steel-aluminum/)
- [Stainless steel round bar sizes (304): 1/8 to 12 in diameter with weight per foot; flat bar thickness and width ranges](https://xemstudio.com/objects/stainless-steel-round-and-flat-bar-sizes/)
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- [Sheet metal gauge chart: steel, galvanized, stainless and aluminum (10, 12, 14, 16, 18, 20 gauge in inches and mm)](https://xemstudio.com/objects/sheet-metal-gauge-chart-steel-galvanized-stainless-aluminum/)
- [Steel flat bar and hex bar stock sizes: A36 hot rolled flat 1/8 to 3/8 in, 1018 hex 1/4 to 2 in and 5 to 18 mm across flats](https://xemstudio.com/objects/steel-flat-bar-and-hex-bar-sizes/)