{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "aluminum-american-standard-channels",
 "name": "Aluminum American Standard channel 2 x 1.22 to 7 x 5.96 (sloped flange): depth, width, web, flange, inside radius + 4 in STEP/STL",
 "kind": "standard",
 "category": "Hardware",
 "group": "Materials & stock",
 "year": null,
 "question": "What are the dimensions of aluminum American Standard channel (4 x 2.16, 3 x 1.42) and how does it differ from Aluminum Association channel?",
 "tags": [
  "aluminum",
  "channel",
  "american standard",
  "sloped flange",
  "extrusion",
  "6061",
  "structural",
  "c channel"
 ],
 "aliases": [
  "aluminum american standard channel dimensions",
  "aluminum channel 4 x 2.16",
  "aluminum channel 3 x 1.42",
  "aluminum channel 6 x 3.63",
  "aluminum channel 2 x 1.22",
  "american standard aluminum channel sizes",
  "aluminum channel sloped flange",
  "aluminum channel 5 x 3.11",
  "aluminum channel 7 x 4.23",
  "6061 t6 aluminum channel american standard",
  "aluminum channel web thickness",
  "aluminum channel step file",
  "aluminum channel vs aluminum association channel",
  "aluminium channel weight per foot"
 ],
 "overall_mm": {
  "length": 101.6,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 18,
 "url": "https://xemstudio.com/objects/aluminum-american-standard-channels/",
 "sheet_txt": "https://xemstudio.com/objects/aluminum-american-standard-channels/sheet.txt",
 "sheet": {
  "basis": "Engineers Edge American Standard aluminum channel table (Aluminum Association 2020 profiles), cross-checked against Metals Depot 6061-T6 listings and Online Metals product pages; 18 profile files",
  "overall_mm": {
   "length": 101.6,
   "width": null,
   "height": null
  },
  "notes": [
   "American Standard aluminum channel (ASTM B308 / B221 6061-T6) has sloped inner flange faces, unlike the Aluminum Association channel on aluminum-channels: the flange is thinner at the tip than at the root. The designation is depth x pounds per foot (4 x 2.16 is a 4 in deep channel of 2.16 lb/ft). The 18 sizes 2 x 1.22 to 7 x 5.96 are the Engineers Edge table of the Aluminum Association Standard Structural Profiles (2020).",
   "The Engineers Edge page's column headings (flange thickness, average web thickness, fillet radius, tip radius) do not match its values. Xem mapped the four values by comparing with Online Metals' product pages for 4 x 1.647 x 0.247, 5 x 1.885 x 0.325, 6 x 2.157 x 0.437 and 8 x 2.527 x 0.487 (web, leg thickness, inside radius) and Metals Depot's web thicknesses: first value = flange tip thickness (4 in: 0.180 = Online Metals' 0.18 leg thickness), second = average flange thickness, third = web thickness (varies by size; equals Metals Depot's web on all 14 sizes it lists), fourth = inside corner radius (Online Metals 0.28 / 0.29 / 0.30). Check: with a 1 : 6 (16.67 %) inner-face slope, (tip + root) / 2 equals the printed average thickness within 0.003 in on all 18 sizes, and the drawn area is within 3 % of the printed area and of the designation weight on all 18.",
   "Flange root thickness is derived from that slope (tip + (B − web) / 6) and is not itself printed. The 1 : 6 slope is not stated on the Engineers Edge or Online Metals pages; it is the value that makes the printed averages consistent.",
   "Online Metals also prints a 'leg radius' (0.11, 0.11, 0.12, 0.13 in for 4, 5, 6, 8 in) and calls 'tapered walls' out; it does not say which corners the leg radius belongs to, and Engineers Edge has no such column, so the flange tips and the outside corners are drawn square. Weights differ between distributors for the same size (Metals Depot 3.12 / Online Metals 3.18 lb/ft for 5 x 1.885; 6.48 / 6.63 for 8 x 2.527); both are shown.",
   "Files are 4 in (101.6 mm) long along X, web back at y = 0, flanges toward +y, depth along z. The 4 in length is Xem's choice. Sizes 8 x ... to 12 x ... are listed by Metals Depot (width, web, weight) without the other dimensions, so they are numbers only; the 8 in sizes carry Online Metals' printed web, leg thickness and radii.",
   "Aluminum Association (flat-flange) channels: aluminum-channels. Steel American Standard channels (C shapes): aisc-c-channels."
  ],
  "table": {
   "columns": [
    "designation (depth x lb/ft)",
    "depth (in)",
    "width B (in)",
    "web (in)",
    "flange tip (in)",
    "flange root (in, derived)",
    "flange average (in)",
    "inside radius R (in)",
    "area (in2)",
    "depth (mm)",
    "width (mm)",
    "web (mm)",
    "Metals Depot: lb/ft",
    "Online Metals: as printed"
   ],
   "rows": [
    [
     "2 x 1.22",
     2,
     1.41,
     0.17,
     0.17,
     0.377,
     0.273,
     0.27,
     1.04,
     50.8,
     35.8,
     4.32,
     "—",
     "—"
    ],
    [
     "3 x 1.42",
     3,
     1.41,
     0.17,
     0.17,
     0.377,
     0.273,
     0.27,
     1.21,
     76.2,
     35.8,
     4.32,
     "1.42 lb/ft (web 0.17)",
     "—"
    ],
    [
     "3 x 1.73",
     3,
     1.498,
     0.258,
     0.17,
     0.377,
     0.273,
     0.27,
     1.47,
     76.2,
     38,
     6.55,
     "1.8 lb/ft (web 0.258)",
     "—"
    ],
    [
     "3 x 2.07",
     3,
     1.596,
     0.356,
     0.17,
     0.377,
     0.273,
     0.27,
     1.76,
     76.2,
     40.5,
     9.04,
     "2.08 lb/ft (web 0.356)",
     "—"
    ],
    [
     "4 x 1.85",
     4,
     1.58,
     0.18,
     0.18,
     0.413,
     0.297,
     0.28,
     1.57,
     101.6,
     40.1,
     4.57,
     "1.85 lb/ft (web 0.18)",
     "—"
    ],
    [
     "4 x 2.16",
     4,
     1.647,
     0.247,
     0.18,
     0.413,
     0.297,
     0.28,
     1.84,
     101.6,
     41.8,
     6.27,
     "2.16 lb/ft (web 0.247)",
     "web 0.247, leg 0.18, inside R 0.28, leg R 0.11, 2.16 lb/ft"
    ],
    [
     "4 x 2.50",
     4,
     1.72,
     0.32,
     0.18,
     0.413,
     0.297,
     0.28,
     2.13,
     101.6,
     43.7,
     8.13,
     "2.52 lb/ft (web 0.32)",
     "—"
    ],
    [
     "5 x 2.32",
     5,
     1.75,
     0.19,
     0.19,
     0.45,
     0.32,
     0.29,
     1.97,
     127,
     44.4,
     4.83,
     "2.32 lb/ft (web 0.19)",
     "—"
    ],
    [
     "5 x 3.11",
     5,
     1.885,
     0.325,
     0.19,
     0.45,
     0.32,
     0.29,
     2.64,
     127,
     47.9,
     8.25,
     "3.12 lb/ft (web 0.325)",
     "web 0.325, leg 0.19, inside R 0.29, leg R 0.11, 3.18 lb/ft"
    ],
    [
     "5 x 3.97",
     5,
     2.032,
     0.472,
     0.19,
     0.45,
     0.32,
     0.29,
     3.38,
     127,
     51.6,
     11.99,
     "3.98 lb/ft (web 0.472)",
     "—"
    ],
    [
     "6 x 2.83",
     6,
     1.92,
     0.2,
     0.2,
     0.487,
     0.343,
     0.3,
     2.4,
     152.4,
     48.8,
     5.08,
     "2.84 lb/ft (web 0.2)",
     "—"
    ],
    [
     "6 x 3.00",
     6,
     1.945,
     0.225,
     0.2,
     0.487,
     0.343,
     0.3,
     2.55,
     152.4,
     49.4,
     5.71,
     "2.83 lb/ft (web 0.225)",
     "—"
    ],
    [
     "6 x 3.63",
     6,
     2.034,
     0.314,
     0.2,
     0.487,
     0.343,
     0.3,
     3.09,
     152.4,
     51.7,
     7.98,
     "3.63 lb/ft (web 0.314)",
     "—"
    ],
    [
     "6 x 4.50",
     6,
     2.157,
     0.438,
     0.2,
     0.486,
     0.343,
     0.3,
     3.83,
     152.4,
     54.8,
     11.13,
     "4.52 lb/ft (web 0.438)",
     "web 0.438, leg 0.2, inside R 0.3, leg R 0.12, 4.6 lb/ft"
    ],
    [
     "7 x 3.54",
     7,
     2.11,
     0.23,
     0.21,
     0.523,
     0.367,
     0.31,
     3.01,
     177.8,
     53.6,
     5.84,
     "3.55 lb/ft (web 0.23)",
     "—"
    ],
    [
     "7 x 4.23",
     7,
     2.194,
     0.314,
     0.21,
     0.523,
     0.367,
     0.31,
     3.6,
     177.8,
     55.7,
     7.98,
     "—",
     "—"
    ],
    [
     "7 x 5.10",
     7,
     2.299,
     0.419,
     0.21,
     0.523,
     0.367,
     0.31,
     4.33,
     177.8,
     58.4,
     10.64,
     "—",
     "—"
    ],
    [
     "7 x 5.96",
     7,
     2.404,
     0.524,
     0.21,
     0.523,
     0.367,
     0.31,
     5.07,
     177.8,
     61.1,
     13.31,
     "—",
     "—"
    ],
    [
     "8 x 2.29 x 0.25 (Metals Depot size)",
     8,
     2.29,
     0.25,
     "—",
     "—",
     "—",
     0.32,
     "—",
     203.2,
     58.2,
     6.35,
     "4.26 lb/ft",
     "web 0.25, leg 0.22, inside R 0.32, leg R 0.13, 4.35 lb/ft"
    ],
    [
     "8 x 2.527 x 0.487 (Metals Depot size)",
     8,
     2.527,
     0.487,
     "—",
     "—",
     "—",
     0.32,
     "—",
     203.2,
     64.2,
     12.37,
     "6.48 lb/ft",
     "web 0.487, leg 0.22, inside R 0.32, leg R 0.13, 6.63 lb/ft"
    ],
    [
     "10 x 2.6 x 0.24 (Metals Depot size)",
     10,
     2.6,
     0.24,
     "—",
     "—",
     "—",
     "—",
     "—",
     254,
     66,
     6.1,
     "5.28 lb/ft",
     "—"
    ],
    [
     "10 x 2.88 x 0.526 (Metals Depot size)",
     10,
     2.88,
     0.526,
     "—",
     "—",
     "—",
     "—",
     "—",
     254,
     73.2,
     13.36,
     "8.68 lb/ft",
     "—"
    ],
    [
     "12 x 2.96 x 0.3 (Metals Depot size)",
     12,
     2.96,
     0.3,
     "—",
     "—",
     "—",
     "—",
     "—",
     304.8,
     75.2,
     7.62,
     "7.5 lb/ft",
     "—"
    ],
    [
     "12 x 3.17 x 0.51 (Metals Depot size)",
     12,
     3.17,
     0.51,
     "—",
     "—",
     "—",
     "—",
     "—",
     304.8,
     80.5,
     12.95,
     "10.36 lb/ft",
     "—"
    ]
   ]
  }
 },
 "sheet_text": "Aluminum American Standard channel 2 x 1.22 to 7 x 5.96 (sloped flange): depth, width, web, flange, inside radius + 4 in STEP/STL — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/aluminum-american-standard-channels/  (sheet CC BY 4.0)\nBasis: Engineers Edge American Standard aluminum channel table (Aluminum Association 2020 profiles), cross-checked against Metals Depot 6061-T6 listings and Online Metals product pages; 18 profile files\nCatalog version: 2026-10-20\n\nOverall (mm): length 101.6\n- American Standard aluminum channel (ASTM B308 / B221 6061-T6) has sloped inner flange faces, unlike the Aluminum Association channel on aluminum-channels: the flange is thinner at the tip than at the root. The designation is depth x pounds per foot (4 x 2.16 is a 4 in deep channel of 2.16 lb/ft). The 18 sizes 2 x 1.22 to 7 x 5.96 are the Engineers Edge table of the Aluminum Association Standard Structural Profiles (2020).\n- The Engineers Edge page's column headings (flange thickness, average web thickness, fillet radius, tip radius) do not match its values. Xem mapped the four values by comparing with Online Metals' product pages for 4 x 1.647 x 0.247, 5 x 1.885 x 0.325, 6 x 2.157 x 0.437 and 8 x 2.527 x 0.487 (web, leg thickness, inside radius) and Metals Depot's web thicknesses: first value = flange tip thickness (4 in: 0.180 = Online Metals' 0.18 leg thickness), second = average flange thickness, third = web thickness (varies by size; equals Metals Depot's web on all 14 sizes it lists), fourth = inside corner radius (Online Metals 0.28 / 0.29 / 0.30). Check: with a 1 : 6 (16.67 %) inner-face slope, (tip + root) / 2 equals the printed average thickness within 0.003 in on all 18 sizes, and the drawn area is within 3 % of the printed area and of the designation weight on all 18.\n- Flange root thickness is derived from that slope (tip + (B − web) / 6) and is not itself printed. The 1 : 6 slope is not stated on the Engineers Edge or Online Metals pages; it is the value that makes the printed averages consistent.\n- Online Metals also prints a 'leg radius' (0.11, 0.11, 0.12, 0.13 in for 4, 5, 6, 8 in) and calls 'tapered walls' out; it does not say which corners the leg radius belongs to, and Engineers Edge has no such column, so the flange tips and the outside corners are drawn square. Weights differ between distributors for the same size (Metals Depot 3.12 / Online Metals 3.18 lb/ft for 5 x 1.885; 6.48 / 6.63 for 8 x 2.527); both are shown.\n- Files are 4 in (101.6 mm) long along X, web back at y = 0, flanges toward +y, depth along z. The 4 in length is Xem's choice. Sizes 8 x ... to 12 x ... are listed by Metals Depot (width, web, weight) without the other dimensions, so they are numbers only; the 8 in sizes carry Online Metals' printed web, leg thickness and radii.\n- Aluminum Association (flat-flange) channels: aluminum-channels. Steel American Standard channels (C shapes): aisc-c-channels.\n\ndesignation (depth x lb/ft)  depth (in)  width B (in)  web (in)  flange tip (in)  flange root (in, derived)  flange average (in)  inside radius R (in)  area (in2)  depth (mm)  width (mm)  web (mm)  Metals Depot: lb/ft  Online Metals: as printed\n2 x 1.22  2  1.41  0.17  0.17  0.377  0.273  0.27  1.04  50.8  35.8  4.32  —  —\n3 x 1.42  3  1.41  0.17  0.17  0.377  0.273  0.27  1.21  76.2  35.8  4.32  1.42 lb/ft (web 0.17)  —\n3 x 1.73  3  1.498  0.258  0.17  0.377  0.273  0.27  1.47  76.2  38.0  6.55  1.8 lb/ft (web 0.258)  —\n3 x 2.07  3  1.596  0.356  0.17  0.377  0.273  0.27  1.76  76.2  40.5  9.04  2.08 lb/ft (web 0.356)  —\n4 x 1.85  4  1.58  0.18  0.18  0.413  0.297  0.28  1.57  101.6  40.1  4.57  1.85 lb/ft (web 0.18)  —\n4 x 2.16  4  1.647  0.247  0.18  0.413  0.297  0.28  1.84  101.6  41.8  6.27  2.16 lb/ft (web 0.247)  web 0.247, leg 0.18, inside R 0.28, leg R 0.11, 2.16 lb/ft\n4 x 2.50  4  1.72  0.32  0.18  0.413  0.297  0.28  2.13  101.6  43.7  8.13  2.52 lb/ft (web 0.32)  —\n5 x 2.32  5  1.75  0.19  0.19  0.45  0.32  0.29  1.97  127.0  44.4  4.83  2.32 lb/ft (web 0.19)  —\n5 x 3.11  5  1.885  0.325  0.19  0.45  0.32  0.29  2.64  127.0  47.9  8.25  3.12 lb/ft (web 0.325)  web 0.325, leg 0.19, inside R 0.29, leg R 0.11, 3.18 lb/ft\n5 x 3.97  5  2.032  0.472  0.19  0.45  0.32  0.29  3.38  127.0  51.6  11.99  3.98 lb/ft (web 0.472)  —\n6 x 2.83  6  1.92  0.2  0.2  0.487  0.343  0.3  2.4  152.4  48.8  5.08  2.84 lb/ft (web 0.2)  —\n6 x 3.00  6  1.945  0.225  0.2  0.487  0.343  0.3  2.55  152.4  49.4  5.71  2.83 lb/ft (web 0.225)  —\n6 x 3.63  6  2.034  0.314  0.2  0.487  0.343  0.3  3.09  152.4  51.7  7.98  3.63 lb/ft (web 0.314)  —\n6 x 4.50  6  2.157  0.438  0.2  0.486  0.343  0.3  3.83  152.4  54.8  11.13  4.52 lb/ft (web 0.438)  web 0.438, leg 0.2, inside R 0.3, leg R 0.12, 4.6 lb/ft\n7 x 3.54  7  2.11  0.23  0.21  0.523  0.367  0.31  3.01  177.8  53.6  5.84  3.55 lb/ft (web 0.23)  —\n7 x 4.23  7  2.194  0.314  0.21  0.523  0.367  0.31  3.6  177.8  55.7  7.98  —  —\n7 x 5.10  7  2.299  0.419  0.21  0.523  0.367  0.31  4.33  177.8  58.4  10.64  —  —\n7 x 5.96  7  2.404  0.524  0.21  0.523  0.367  0.31  5.07  177.8  61.1  13.31  —  —\n8 x 2.29 x 0.25 (Metals Depot size)  8  2.29  0.25  —  —  —  0.32  —  203.2  58.2  6.35  4.26 lb/ft  web 0.25, leg 0.22, inside R 0.32, leg R 0.13, 4.35 lb/ft\n8 x 2.527 x 0.487 (Metals Depot size)  8  2.527  0.487  —  —  —  0.32  —  203.2  64.2  12.37  6.48 lb/ft  web 0.487, leg 0.22, inside R 0.32, leg R 0.13, 6.63 lb/ft\n10 x 2.6 x 0.24 (Metals Depot size)  10  2.6  0.24  —  —  —  —  —  254.0  66.0  6.1  5.28 lb/ft  —\n10 x 2.88 x 0.526 (Metals Depot size)  10  2.88  0.526  —  —  —  —  —  254.0  73.2  13.36  8.68 lb/ft  —\n12 x 2.96 x 0.3 (Metals Depot size)  12  2.96  0.3  —  —  —  —  —  304.8  75.2  7.62  7.5 lb/ft  —\n12 x 3.17 x 0.51 (Metals Depot size)  12  3.17  0.51  —  —  —  —  —  304.8  80.5  12.95  10.36 lb/ft  —\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Engineers Edge: American Standard Aluminum Channel Sizes Table (reference: Aluminum Association Standard Structural Profiles 2020): depth, width, thicknesses, radius, area — web — Publisher's page; the page's column headings do not line up with its values, see the page notes — https://www.engineersedge.com/materials/american_standard_aluminum_channel__13662.htm\n- Metals Depot: Aluminum channel 6061-T6 (ASTM B308): AA, American Standard (AS) and straight-leg profiles: width x flange x web and weight per foot — web — Publisher's page; dimensions are facts — https://www.metalsdepot.com/aluminum-products/aluminum-channel-6061\n- Online Metals: Aluminum channel 6061-T6 American Standard 4 x 1.647 x 0.247: web, leg thickness, inside radius, leg radius, weight — web — Publisher's page; dimensions are facts — https://www.onlinemetals.com/en/buy/aluminum/4-x-1-647-x-0-247-aluminum-channel-6061-t6-extruded-american-standard/pid/1068\n- Online Metals: Aluminum channel American Standard 5 x 1.885 x 0.325 — web — Publisher's page; dimensions are facts — https://www.onlinemetals.com/en/buy/aluminum/5-x-1-885-x-0-325-aluminum-channel-6061-t6-extruded-american-standard/pid/1071\n- Online Metals: Aluminum channel American Standard 6 x 2.157 x 0.437 — web — Publisher's page; dimensions are facts — https://www.onlinemetals.com/en/buy/aluminum/6-x-2-157-x-0-437-aluminum-channel-6061-t6-extruded-american-standard/pid/1076\n- Online Metals: Aluminum channel American Standard 8 x 2.527 x 0.487 — web — Publisher's page; dimensions are facts — https://www.onlinemetals.com/en/buy/aluminum/8-x-2-527-x-0-487-aluminum-channel-6061-t6-extruded-american-standard/pid/1078\n- Online Metals: Aluminum channel American Standard 8 x 2.29 x 0.25 — web — Publisher's page; dimensions are facts — https://www.onlinemetals.com/en/buy/aluminum/8-x-2-29-x-0-25-aluminum-channel-6061-t6-extruded-american-standard/pid/1077\n- 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/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 18 parts): https://xemstudio.com/files/hardware/aluminum-american-standard-channels/index.json\nAPI: https://xemstudio.com/api/geometry?object=aluminum-american-standard-channels\n",
 "sources": [
  {
   "publisher": "Engineers Edge",
   "title": "American Standard Aluminum Channel Sizes Table (reference: Aluminum Association Standard Structural Profiles 2020): depth, width, thicknesses, radius, area",
   "url": "https://www.engineersedge.com/materials/american_standard_aluminum_channel__13662.htm",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; the page's column headings do not line up with its values, see the page notes",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Metals Depot",
   "title": "Aluminum channel 6061-T6 (ASTM B308): AA, American Standard (AS) and straight-leg profiles: width x flange x web and weight per foot",
   "url": "https://www.metalsdepot.com/aluminum-products/aluminum-channel-6061",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Online Metals",
   "title": "Aluminum channel 6061-T6 American Standard 4 x 1.647 x 0.247: web, leg thickness, inside radius, leg radius, weight",
   "url": "https://www.onlinemetals.com/en/buy/aluminum/4-x-1-647-x-0-247-aluminum-channel-6061-t6-extruded-american-standard/pid/1068",
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   "title": "Aluminum channel American Standard 5 x 1.885 x 0.325",
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   "title": "Aluminum channel American Standard 6 x 2.157 x 0.437",
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   "publisher": "Online Metals",
   "title": "Aluminum channel American Standard 8 x 2.527 x 0.487",
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   "publisher": "Online Metals",
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  {
   "publisher": "McMaster-Carr",
   "title": "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)",
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  "status": "free-files",
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  "mesh_price_usd": null,
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  "tolerance_mm": null
 },
 "related": [
  "aluminum-channels",
  "aluminum-angles",
  "aluminum-i-beams",
  "aisc-c-channels",
  "aluminum-angle-stock-sizes-and-radii",
  "aluminum-flat-bar-and-round-bar-sizes",
  "2020-aluminum-extrusion"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [],
 "faq": [
  {
   "q": "What is the difference between American Standard and Aluminum Association aluminum channel?",
   "a": "American Standard channel has an inner flange face sloped 1 : 6 (thinner at the tip); Aluminum Association channel has parallel, constant-thickness flanges (aluminum-channels)."
  },
  {
   "q": "What does 4 x 2.16 mean for aluminum channel?",
   "a": "A 4 in deep American Standard channel weighing 2.16 lb per foot; width 1.647 in, web 0.247 in, flange tip 0.18 in, inside radius 0.28 in."
  },
  {
   "q": "How thick is the web of a 3 x 1.42 aluminum channel?",
   "a": "0.170 in (Engineers Edge; Metals Depot lists the same size as 3 x 1.41 x 0.170 at 1.42 lb/ft)."
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   "note": "American Standard aluminum channel 2 x 1.22: depth 2 in, width 1.41 in, web 0.17 in, flange 0.17 in at the tip rising to 0.377 in at the root (slope 1:6), inside corner radius 0.27 in, tips and outside corners square, 4 in long"
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   "note": "American Standard aluminum channel 3 x 1.42: depth 3 in, width 1.41 in, web 0.17 in, flange 0.17 in at the tip rising to 0.377 in at the root (slope 1:6), inside corner radius 0.27 in, tips and outside corners square, 4 in long"
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  {
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-3x1p73-4in.stl",
   "note": "American Standard aluminum channel 3 x 1.73: depth 3 in, width 1.498 in, web 0.258 in, flange 0.17 in at the tip rising to 0.377 in at the root (slope 1:6), inside corner radius 0.27 in, tips and outside corners square, 4 in long"
  },
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-3x2p07-4in.stl",
   "note": "American Standard aluminum channel 3 x 2.07: depth 3 in, width 1.596 in, web 0.356 in, flange 0.17 in at the tip rising to 0.377 in at the root (slope 1:6), inside corner radius 0.27 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-4x1p85-4in",
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   "note": "American Standard aluminum channel 4 x 1.85: depth 4 in, width 1.58 in, web 0.18 in, flange 0.18 in at the tip rising to 0.413 in at the root (slope 1:6), inside corner radius 0.28 in, tips and outside corners square, 4 in long"
  },
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   "note": "American Standard aluminum channel 4 x 2.16: depth 4 in, width 1.647 in, web 0.247 in, flange 0.18 in at the tip rising to 0.413 in at the root (slope 1:6), inside corner radius 0.28 in, tips and outside corners square, 4 in long"
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   "note": "American Standard aluminum channel 4 x 2.50: depth 4 in, width 1.72 in, web 0.32 in, flange 0.18 in at the tip rising to 0.413 in at the root (slope 1:6), inside corner radius 0.28 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-5x2p32-4in",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-5x2p32-4in.stl",
   "note": "American Standard aluminum channel 5 x 2.32: depth 5 in, width 1.75 in, web 0.19 in, flange 0.19 in at the tip rising to 0.450 in at the root (slope 1:6), inside corner radius 0.29 in, tips and outside corners square, 4 in long"
  },
  {
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-5x3p11-4in.stl",
   "note": "American Standard aluminum channel 5 x 3.11: depth 5 in, width 1.885 in, web 0.325 in, flange 0.19 in at the tip rising to 0.450 in at the root (slope 1:6), inside corner radius 0.29 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-5x3p97-4in",
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-5x3p97-4in.stl",
   "note": "American Standard aluminum channel 5 x 3.97: depth 5 in, width 2.032 in, web 0.472 in, flange 0.19 in at the tip rising to 0.450 in at the root (slope 1:6), inside corner radius 0.29 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-6x2p83-4in",
   "formats": [
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   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-6x2p83-4in.step",
   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-6x2p83-4in.stl",
   "note": "American Standard aluminum channel 6 x 2.83: depth 6 in, width 1.92 in, web 0.2 in, flange 0.2 in at the tip rising to 0.487 in at the root (slope 1:6), inside corner radius 0.3 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-6x3p00-4in",
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-6x3p00-4in.step",
   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-6x3p00-4in.stl",
   "note": "American Standard aluminum channel 6 x 3.00: depth 6 in, width 1.945 in, web 0.225 in, flange 0.2 in at the tip rising to 0.487 in at the root (slope 1:6), inside corner radius 0.3 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-6x3p63-4in",
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-6x3p63-4in.stl",
   "note": "American Standard aluminum channel 6 x 3.63: depth 6 in, width 2.034 in, web 0.314 in, flange 0.2 in at the tip rising to 0.487 in at the root (slope 1:6), inside corner radius 0.3 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-6x4p50-4in",
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-6x4p50-4in.stl",
   "note": "American Standard aluminum channel 6 x 4.50: depth 6 in, width 2.157 in, web 0.438 in, flange 0.2 in at the tip rising to 0.486 in at the root (slope 1:6), inside corner radius 0.3 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-7x3p54-4in",
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-7x3p54-4in.stl",
   "note": "American Standard aluminum channel 7 x 3.54: depth 7 in, width 2.11 in, web 0.23 in, flange 0.21 in at the tip rising to 0.523 in at the root (slope 1:6), inside corner radius 0.31 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-7x4p23-4in",
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-7x4p23-4in.stl",
   "note": "American Standard aluminum channel 7 x 4.23: depth 7 in, width 2.194 in, web 0.314 in, flange 0.21 in at the tip rising to 0.523 in at the root (slope 1:6), inside corner radius 0.31 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-7x5p10-4in",
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   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-7x5p10-4in.stl",
   "note": "American Standard aluminum channel 7 x 5.10: depth 7 in, width 2.299 in, web 0.419 in, flange 0.21 in at the tip rising to 0.523 in at the root (slope 1:6), inside corner radius 0.31 in, tips and outside corners square, 4 in long"
  },
  {
   "file": "as-channel-7x5p96-4in",
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aluminum-american-standard-channels/as-channel-7x5p96-4in.stl",
   "note": "American Standard aluminum channel 7 x 5.96: depth 7 in, width 2.404 in, web 0.524 in, flange 0.21 in at the tip rising to 0.523 in at the root (slope 1:6), inside corner radius 0.31 in, tips and outside corners square, 4 in long"
  }
 ],
 "markdown": "https://xemstudio.com/objects/aluminum-american-standard-channels/index.md"
}