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 — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/aluminum-flat-bar-and-round-bar-sizes/ (sheet CC BY 4.0) Basis: Russel Metals 6061-T6 flat and round bar tables (weights checked against the section), Remington and Online Metals size lists; numbers only Catalog version: 2026-10-20 Sizes: see table below - 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. 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 — — Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - Russel Metals: 6061-T6 aluminum flat bar: 64 thickness x width sizes with weight per foot — web — Publisher's page; dimensions are facts — https://www.russelmetals.com/en/product/aluminum-extrusions/flats/ - Russel Metals: Aluminum round bar: 6061-T6 (37 diameters, 1/4 to 10 in) and 2011-T3 (31 sizes) with weight per foot — web — Publisher's page; dimensions are facts — https://www.russelmetals.com/en/product/aluminum-extrusions/rounds_aluminum/ - Remington Industries: Aluminum dimensions: 6061 angle, flat bar and rod size options — web — Publisher's page; dimensions are facts — https://www.remingtonindustries.com/resources/aluminum-dimensions/ - 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) — web — Publisher's page; dimensions are facts — https://www.onlinemetals.com/en/buy/aluminum/1-aluminum-round-bar-6061-t651-cold-finish/pid/18037 - 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) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/aluminum-bars/material~aluminum-2/material~6061-aluminum/material~6063-aluminum/ No true-size file yet: the published figures do not fix the whole shape; a measured scan is planned. API: https://xemstudio.com/api/geometry?object=aluminum-flat-bar-and-round-bar-sizes