{
 "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-round-tube-and-pipe-6061-6063",
 "name": "Aluminum round tube (6061-T6) OD × wall and aluminum pipe Schedule 40 / 80: sizes, ID, weight + 100 mm tube sections",
 "kind": "standard",
 "category": "Tri-clamp & pipe",
 "group": "Pipe, tube & threads",
 "year": null,
 "question": "What OD × wall sizes does 6061 aluminum round tube come in, and what are the OD and wall of Schedule 40 and Schedule 80 aluminum pipe?",
 "tags": [
  "aluminum tube",
  "aluminum round tube",
  "6061 tube",
  "6063 tube",
  "aluminum pipe",
  "schedule 40 aluminum pipe",
  "schedule 80 aluminum pipe",
  "round tubing",
  "6061-t6 tube",
  "hollow section"
 ],
 "aliases": [
  "6061 aluminum tube sizes",
  "aluminum round tube od wall chart",
  "1 inch aluminum tube wall .125",
  "aluminum tube 1.5 x .25",
  "3 inch aluminum round tube .125 wall",
  "2 inch aluminum tube .125 wall id",
  "schedule 40 aluminum pipe od",
  "schedule 80 aluminum pipe wall",
  "1 inch schedule 40 aluminum pipe",
  "aluminum pipe 2 inch od",
  "6061-t6511 round tube",
  "aluminum tube 4 inch od .250",
  "aluminum round tube weight per foot",
  "aluminum pipe 3 inch sch 40 id"
 ],
 "overall_mm": {
  "length": 101.6,
  "width": 101.6,
  "height": 100
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 10,
 "url": "https://xemstudio.com/objects/aluminum-round-tube-and-pipe-6061-6063/",
 "sheet_txt": "https://xemstudio.com/objects/aluminum-round-tube-and-pipe-6061-6063/sheet.txt",
 "sheet": {
  "basis": "Four distributors' round tube lists (Continental Steel & Tube, Online Metals, Alcobra Metals, Russel Metals) and two pipe sources (Metals4U, Continental Steel); pipe walls compared with the ASME B36.10M figures already on steel-pipe-asme-b36-10m-nps-1-8-to-24",
  "overall_mm": {
   "length": 101.6,
   "width": 101.6,
   "height": 100
  },
  "notes": [
   "Aluminum round tube is sold by OD and wall (inches) in 6061-T6 (Continental also lists T6511, the stress-relieved extrusion temper) and, on some distributors' pages, 6063. The table is the union of four lists, 84 OD × wall sizes; the last column shows who lists each size (CS Continental Steel & Tube, 25 of 44 items read; OM Online Metals, two pages of 25 read; AL Alcobra Metals, 10 items; RM Russel Metals, 19 sizes). A size missing from the page-1 lists is not evidence that it is not made.",
   "ID is OD − 2 × wall. Continental prints an ID and a weight (lb/ft) for each row; every printed ID, and the three IDs Online Metals prints for sizes also listed elsewhere, equal OD − 2 × wall to within 0.001 in (checked here). Continental's weights follow (OD − wall) × wall to within 1 % (a check made here). Russel prints weights too (omitted: they are rounded differently, for example 1/2 × 0.065 at 0.104 lb/ft).",
   "Aluminum pipe is made to the same nominal pipe sizes and schedules as steel pipe (ASME B36.10M OD and wall); the distributors' walls below are compared with the B36.10M figures on steel-pipe-asme-b36-10m-nps-1-8-to-24. Differences, shown not resolved: Metals4U prints Sch 40 walls of 0.07 for 1/8 in and 0.090 for 1/4 in where the B36.10M page has 0.068 and 0.088, and an OD of 0.41 for 1/8 in where B36.10M has 0.405. Left out as a listing error: Metals4U's '4 in' Sch 40 row, which repeats the 3 in OD (3.500), wall and ID; its listing also has no 5 in. Its '3-1/2 in' row (OD 4.000, wall 0.226, ID 3.548) equals B36.10M. Continental's Sch 80 2-1/2 in row prints an ID of 1.323, but OD 2.875 − 2 × 0.276 is 2.323, so the ID shown here is the derived 2.323 (the printed wall 0.276 equals B36.10M's). Its 3 in row prints the OD as '3 1/2' (3.500).",
   "Pipe weights (lb/ft) are Metals4U's aluminum column, shown only where its pipe chart prints them (Sch 40 1/4, 3/8, 1/2, 3/4; Sch 80 1/2, 3/4).",
   "Files: 100 mm hollow sections of every round tube size that at least two distributors list. Aluminum pipe is not drawn again: it has the same OD and wall as steel pipe, whose sections are on steel-pipe-asme-b36-10m-nps-1-8-to-24 (scale the material, not the geometry). The length is Xem's example length. Square and rectangular aluminum tube: aluminum-square-tube-6063-t52 and aluminum-rectangular-tube-6063-t52."
  ],
  "table": {
   "columns": [
    "item",
    "OD as listed, or NPS",
    "OD, in",
    "OD, mm",
    "wall, in",
    "wall, mm",
    "ID, in",
    "ID, mm",
    "sources / check"
   ],
   "rows": [
    [
     "Round tube 6061",
     "1/4",
     "0.25",
     "6.35",
     "0.035",
     "0.89",
     "0.180",
     "4.57",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "3/8",
     "0.375",
     "9.53",
     "0.035",
     "0.89",
     "0.305",
     "7.75",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "3/8",
     "0.375",
     "9.53",
     "0.049",
     "1.24",
     "0.277",
     "7.04",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "3/8",
     "0.375",
     "9.53",
     "0.065",
     "1.65",
     "0.245",
     "6.22",
     "listed by OM+RM"
    ],
    [
     "Round tube 6061",
     "7/16",
     "0.4375",
     "11.11",
     "0.035",
     "0.89",
     "0.367",
     "9.33",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1/2",
     "0.5",
     "12.70",
     "0.035",
     "0.89",
     "0.430",
     "10.92",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1/2",
     "0.5",
     "12.70",
     "0.049",
     "1.24",
     "0.402",
     "10.21",
     "listed by OM+RM"
    ],
    [
     "Round tube 6061",
     "1/2",
     "0.5",
     "12.70",
     "0.058",
     "1.47",
     "0.384",
     "9.75",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1/2",
     "0.5",
     "12.70",
     "0.065",
     "1.65",
     "0.370",
     "9.40",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "9/16",
     "0.5625",
     "14.29",
     "0.029",
     "0.74",
     "0.504",
     "12.81",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "5/8",
     "0.625",
     "15.88",
     "0.049",
     "1.24",
     "0.527",
     "13.39",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "5/8",
     "0.625",
     "15.88",
     "0.065",
     "1.65",
     "0.495",
     "12.57",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "5/8",
     "0.625",
     "15.88",
     "0.1455",
     "3.70",
     "0.334",
     "8.48",
     "listed by CS; Continental 0.2578 lb/ft"
    ],
    [
     "Round tube 6061",
     "3/4",
     "0.75",
     "19.05",
     "0.035",
     "0.89",
     "0.680",
     "17.27",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "3/4",
     "0.75",
     "19.05",
     "0.058",
     "1.47",
     "0.634",
     "16.10",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "3/4",
     "0.75",
     "19.05",
     "0.065",
     "1.65",
     "0.620",
     "15.75",
     "listed by OM+RM"
    ],
    [
     "Round tube 6061",
     "3/4",
     "0.75",
     "19.05",
     "0.125",
     "3.18",
     "0.500",
     "12.70",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1",
     "1",
     "25.40",
     "0.049",
     "1.24",
     "0.902",
     "22.91",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1",
     "1",
     "25.40",
     "0.058",
     "1.47",
     "0.884",
     "22.45",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1",
     "1",
     "25.40",
     "0.065",
     "1.65",
     "0.870",
     "22.10",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "1",
     "1",
     "25.40",
     "0.083",
     "2.11",
     "0.834",
     "21.18",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1",
     "1",
     "25.40",
     "0.125",
     "3.18",
     "0.750",
     "19.05",
     "listed by CS+RM; Continental 0.4041 lb/ft"
    ],
    [
     "Round tube 6061",
     "1",
     "1",
     "25.40",
     "0.25",
     "6.35",
     "0.500",
     "12.70",
     "listed by CS; Continental 0.6927 lb/ft"
    ],
    [
     "Round tube 6061",
     "1-1/8",
     "1.125",
     "28.58",
     "0.035",
     "0.89",
     "1.055",
     "26.80",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-1/4",
     "1.25",
     "31.75",
     "0.065",
     "1.65",
     "1.120",
     "28.45",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "1-1/4",
     "1.25",
     "31.75",
     "0.12",
     "3.05",
     "1.010",
     "25.65",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "1-1/4",
     "1.25",
     "31.75",
     "0.125",
     "3.18",
     "1.000",
     "25.40",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-1/4",
     "1.25",
     "31.75",
     "0.25",
     "6.35",
     "0.750",
     "19.05",
     "listed by CS; Continental 0.9236 lb/ft"
    ],
    [
     "Round tube 6061",
     "1-3/8",
     "1.375",
     "34.93",
     "0.049",
     "1.24",
     "1.277",
     "32.44",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-3/8",
     "1.375",
     "34.93",
     "0.058",
     "1.47",
     "1.259",
     "31.98",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-3/8",
     "1.375",
     "34.93",
     "0.065",
     "1.65",
     "1.245",
     "31.62",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-3/8",
     "1.375",
     "34.93",
     "0.125",
     "3.18",
     "1.125",
     "28.58",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.035",
     "0.89",
     "1.430",
     "36.32",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.049",
     "1.24",
     "1.402",
     "35.61",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.065",
     "1.65",
     "1.370",
     "34.80",
     "listed by OM+RM"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.083",
     "2.11",
     "1.334",
     "33.88",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.12",
     "3.05",
     "1.260",
     "32.00",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.125",
     "3.18",
     "1.250",
     "31.75",
     "listed by CS; Continental 0.635 lb/ft"
    ],
    [
     "Round tube 6061",
     "1-1/2",
     "1.5",
     "38.10",
     "0.25",
     "6.35",
     "1.000",
     "25.40",
     "listed by CS+OM; Continental 1.1545 lb/ft"
    ],
    [
     "Round tube 6061",
     "1-5/8",
     "1.625",
     "41.28",
     "0.058",
     "1.47",
     "1.509",
     "38.33",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-5/8",
     "1.625",
     "41.28",
     "0.125",
     "3.18",
     "1.375",
     "34.93",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-3/4",
     "1.75",
     "44.45",
     "0.058",
     "1.47",
     "1.634",
     "41.50",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "1-3/4",
     "1.75",
     "44.45",
     "0.25",
     "6.35",
     "1.250",
     "31.75",
     "listed by CS; Continental 1.3854 lb/ft"
    ],
    [
     "Round tube 6061",
     "1-7/8",
     "1.875",
     "47.63",
     "0.058",
     "1.47",
     "1.759",
     "44.68",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "2",
     "2",
     "50.80",
     "0.058",
     "1.47",
     "1.884",
     "47.85",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "2",
     "2",
     "50.80",
     "0.065",
     "1.65",
     "1.870",
     "47.50",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "2",
     "2",
     "50.80",
     "0.12",
     "3.05",
     "1.760",
     "44.70",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "2",
     "2",
     "50.80",
     "0.125",
     "3.18",
     "1.750",
     "44.45",
     "listed by CS; Continental 0.8659 lb/ft"
    ],
    [
     "Round tube 6061",
     "2",
     "2",
     "50.80",
     "0.25",
     "6.35",
     "1.500",
     "38.10",
     "listed by CS; Continental 1.6164 lb/ft"
    ],
    [
     "Round tube 6061",
     "2-1/4",
     "2.25",
     "57.15",
     "0.065",
     "1.65",
     "2.120",
     "53.85",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "2-1/2",
     "2.5",
     "63.50",
     "0.065",
     "1.65",
     "2.370",
     "60.20",
     "listed by OM+RM"
    ],
    [
     "Round tube 6061",
     "2-1/2",
     "2.5",
     "63.50",
     "0.12",
     "3.05",
     "2.260",
     "57.40",
     "listed by RM"
    ],
    [
     "Round tube 6061",
     "2-1/2",
     "2.5",
     "63.50",
     "0.125",
     "3.18",
     "2.250",
     "57.15",
     "listed by CS; Continental 1.0968 lb/ft"
    ],
    [
     "Round tube 6061",
     "2-1/2",
     "2.5",
     "63.50",
     "0.25",
     "6.35",
     "2.000",
     "50.80",
     "listed by CS; Continental 2.0782 lb/ft"
    ],
    [
     "Round tube 6061",
     "2-1/2",
     "2.5",
     "63.50",
     "0.5",
     "12.70",
     "1.500",
     "38.10",
     "listed by CS; Continental 3.6945 lb/ft"
    ],
    [
     "Round tube 6061",
     "2-3/4",
     "2.75",
     "69.85",
     "0.25",
     "6.35",
     "2.250",
     "57.15",
     "listed by CS; Continental 2.3091 lb/ft"
    ],
    [
     "Round tube 6061",
     "2-3/4",
     "2.75",
     "69.85",
     "0.5",
     "12.70",
     "1.750",
     "44.45",
     "listed by CS; Continental 4.1563 lb/ft"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.065",
     "1.65",
     "2.870",
     "72.90",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.083",
     "2.11",
     "2.834",
     "71.98",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.125",
     "3.18",
     "2.750",
     "69.85",
     "listed by CS+RM; Continental 1.3277 lb/ft"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.25",
     "6.35",
     "2.500",
     "63.50",
     "listed by CS; Continental 2.54 lb/ft"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.375",
     "9.53",
     "2.250",
     "57.15",
     "listed by CS; Continental 3.6368 lb/ft"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.5",
     "12.70",
     "2.000",
     "50.80",
     "listed by CS; Continental 4.6182 lb/ft"
    ],
    [
     "Round tube 6061",
     "3",
     "3",
     "76.20",
     "0.75",
     "19.05",
     "1.500",
     "38.10",
     "listed by CS; Continental 6.2345 lb/ft"
    ],
    [
     "Round tube 6061",
     "3-1/4",
     "3.25",
     "82.55",
     "0.25",
     "6.35",
     "2.750",
     "69.85",
     "listed by CS; Continental 2.7709 lb/ft"
    ],
    [
     "Round tube 6061",
     "3-1/2",
     "3.5",
     "88.90",
     "0.065",
     "1.65",
     "3.370",
     "85.60",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "3-1/2",
     "3.5",
     "88.90",
     "0.25",
     "6.35",
     "3.000",
     "76.20",
     "listed by CS; Continental 3.0018 lb/ft"
    ],
    [
     "Round tube 6061",
     "3-1/2",
     "3.5",
     "88.90",
     "0.5",
     "12.70",
     "2.500",
     "63.50",
     "listed by CS; Continental 5.5418 lb/ft"
    ],
    [
     "Round tube 6061",
     "3-1/2",
     "3.5",
     "88.90",
     "0.75",
     "19.05",
     "2.000",
     "50.80",
     "listed by CS+OM; Continental 7.62 lb/ft"
    ],
    [
     "Round tube 6061",
     "3-3/4",
     "3.75",
     "95.25",
     "0.25",
     "6.35",
     "3.250",
     "82.55",
     "listed by CS; Continental 3.2327 lb/ft"
    ],
    [
     "Round tube 6061",
     "4",
     "4",
     "101.60",
     "0.065",
     "1.65",
     "3.870",
     "98.30",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "4",
     "4",
     "101.60",
     "0.125",
     "3.18",
     "3.750",
     "95.25",
     "listed by CS+RM; Continental 1.7895 lb/ft"
    ],
    [
     "Round tube 6061",
     "4",
     "4",
     "101.60",
     "0.25",
     "6.35",
     "3.500",
     "88.90",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "4",
     "4",
     "101.60",
     "0.375",
     "9.53",
     "3.250",
     "82.55",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "4",
     "4",
     "101.60",
     "0.5",
     "12.70",
     "3.000",
     "76.20",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "4-1/2",
     "4.5",
     "114.30",
     "0.25",
     "6.35",
     "4.000",
     "101.60",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "5",
     "5",
     "127.00",
     "1",
     "25.40",
     "3.000",
     "76.20",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "5-1/2",
     "5.5",
     "139.70",
     "0.5",
     "12.70",
     "4.500",
     "114.30",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "6",
     "6",
     "152.40",
     "0.25",
     "6.35",
     "5.500",
     "139.70",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "6",
     "6",
     "152.40",
     "0.5",
     "12.70",
     "5.000",
     "127.00",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "6",
     "6",
     "152.40",
     "1",
     "25.40",
     "4.000",
     "101.60",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "7",
     "7",
     "177.80",
     "0.5",
     "12.70",
     "6.000",
     "152.40",
     "listed by AL"
    ],
    [
     "Round tube 6061",
     "7",
     "7",
     "177.80",
     "1",
     "25.40",
     "5.000",
     "127.00",
     "listed by OM"
    ],
    [
     "Round tube 6061",
     "12",
     "12",
     "304.80",
     "1",
     "25.40",
     "10.000",
     "254.00",
     "listed by OM"
    ],
    [
     "Pipe Sch 40",
     "NPS 1/8",
     "0.410",
     "10.41",
     "0.070",
     "1.78",
     "0.269",
     "6.83",
     "B36.10M wall 0.068 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 1/4",
     "0.540",
     "13.72",
     "0.090",
     "2.29",
     "0.364",
     "9.25",
     "B36.10M wall 0.088 in; Metals4U aluminum 0.147 lb/ft"
    ],
    [
     "Pipe Sch 40",
     "NPS 3/8",
     "0.675",
     "17.15",
     "0.091",
     "2.31",
     "0.493",
     "12.52",
     "B36.10M wall 0.091 in; Metals4U aluminum 0.196 lb/ft"
    ],
    [
     "Pipe Sch 40",
     "NPS 1/2",
     "0.840",
     "21.34",
     "0.109",
     "2.77",
     "0.622",
     "15.80",
     "B36.10M wall 0.109 in; Metals4U aluminum 0.294 lb/ft"
    ],
    [
     "Pipe Sch 40",
     "NPS 3/4",
     "1.050",
     "26.67",
     "0.113",
     "2.87",
     "0.824",
     "20.93",
     "B36.10M wall 0.113 in; Metals4U aluminum 0.391 lb/ft"
    ],
    [
     "Pipe Sch 40",
     "NPS 1",
     "1.315",
     "33.40",
     "0.133",
     "3.38",
     "1.049",
     "26.64",
     "B36.10M wall 0.133 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 1-1/4",
     "1.660",
     "42.16",
     "0.140",
     "3.56",
     "1.380",
     "35.05",
     "B36.10M wall 0.140 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 1-1/2",
     "1.900",
     "48.26",
     "0.145",
     "3.68",
     "1.610",
     "40.89",
     "B36.10M wall 0.145 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 2",
     "2.375",
     "60.33",
     "0.154",
     "3.91",
     "2.067",
     "52.50",
     "B36.10M wall 0.154 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 2-1/2",
     "2.875",
     "73.03",
     "0.203",
     "5.16",
     "2.469",
     "62.71",
     "B36.10M wall 0.203 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 3",
     "3.500",
     "88.90",
     "0.216",
     "5.49",
     "3.068",
     "77.93",
     "B36.10M wall 0.216 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 3-1/2",
     "4.000",
     "101.60",
     "0.226",
     "5.74",
     "3.548",
     "90.12",
     "B36.10M wall 0.226 in"
    ],
    [
     "Pipe Sch 40",
     "NPS 6",
     "6.625",
     "168.28",
     "0.280",
     "7.11",
     "6.065",
     "154.05",
     "B36.10M wall 0.280 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 1/4",
     "0.540",
     "13.72",
     "0.119",
     "3.02",
     "0.302",
     "7.67",
     "B36.10M wall 0.119 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 3/8",
     "0.675",
     "17.15",
     "0.126",
     "3.20",
     "0.423",
     "10.74",
     "B36.10M wall 0.126 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 1/2",
     "0.840",
     "21.34",
     "0.147",
     "3.73",
     "0.546",
     "13.87",
     "B36.10M wall 0.147 in; Metals4U aluminum 0.384 lb/ft"
    ],
    [
     "Pipe Sch 80",
     "NPS 3/4",
     "1.050",
     "26.67",
     "0.154",
     "3.91",
     "0.742",
     "18.85",
     "B36.10M wall 0.154 in; Metals4U aluminum 0.52 lb/ft"
    ],
    [
     "Pipe Sch 80",
     "NPS 1",
     "1.315",
     "33.40",
     "0.179",
     "4.55",
     "0.957",
     "24.31",
     "B36.10M wall 0.179 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 1-1/4",
     "1.660",
     "42.16",
     "0.191",
     "4.85",
     "1.278",
     "32.46",
     "B36.10M wall 0.191 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 1-1/2",
     "1.900",
     "48.26",
     "0.200",
     "5.08",
     "1.500",
     "38.10",
     "B36.10M wall 0.200 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 2",
     "2.375",
     "60.33",
     "0.218",
     "5.54",
     "1.939",
     "49.25",
     "B36.10M wall 0.218 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 2-1/2",
     "2.875",
     "73.03",
     "0.276",
     "7.01",
     "2.323",
     "59.00",
     "B36.10M wall 0.276 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 3",
     "3.500",
     "88.90",
     "0.300",
     "7.62",
     "2.900",
     "73.66",
     "B36.10M wall 0.300 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 4",
     "4.500",
     "114.30",
     "0.337",
     "8.56",
     "3.826",
     "97.18",
     "B36.10M wall 0.337 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 5",
     "5.563",
     "141.30",
     "0.375",
     "9.53",
     "4.813",
     "122.25",
     "B36.10M wall 0.375 in"
    ],
    [
     "Pipe Sch 80",
     "NPS 6",
     "6.625",
     "168.28",
     "0.432",
     "10.97",
     "5.761",
     "146.33",
     "B36.10M wall 0.432 in"
    ]
   ]
  }
 },
 "sheet_text": "Aluminum round tube (6061-T6) OD × wall and aluminum pipe Schedule 40 / 80: sizes, ID, weight + 100 mm tube sections — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/aluminum-round-tube-and-pipe-6061-6063/  (sheet CC BY 4.0)\nBasis: Four distributors' round tube lists (Continental Steel & Tube, Online Metals, Alcobra Metals, Russel Metals) and two pipe sources (Metals4U, Continental Steel); pipe walls compared with the ASME B36.10M figures already on steel-pipe-asme-b36-10m-nps-1-8-to-24\nCatalog version: 2026-10-20\n\nOverall (mm): length 101.6, width 101.6, height 100.0\n- Aluminum round tube is sold by OD and wall (inches) in 6061-T6 (Continental also lists T6511, the stress-relieved extrusion temper) and, on some distributors' pages, 6063. The table is the union of four lists, 84 OD × wall sizes; the last column shows who lists each size (CS Continental Steel & Tube, 25 of 44 items read; OM Online Metals, two pages of 25 read; AL Alcobra Metals, 10 items; RM Russel Metals, 19 sizes). A size missing from the page-1 lists is not evidence that it is not made.\n- ID is OD − 2 × wall. Continental prints an ID and a weight (lb/ft) for each row; every printed ID, and the three IDs Online Metals prints for sizes also listed elsewhere, equal OD − 2 × wall to within 0.001 in (checked here). Continental's weights follow (OD − wall) × wall to within 1 % (a check made here). Russel prints weights too (omitted: they are rounded differently, for example 1/2 × 0.065 at 0.104 lb/ft).\n- Aluminum pipe is made to the same nominal pipe sizes and schedules as steel pipe (ASME B36.10M OD and wall); the distributors' walls below are compared with the B36.10M figures on steel-pipe-asme-b36-10m-nps-1-8-to-24. Differences, shown not resolved: Metals4U prints Sch 40 walls of 0.07 for 1/8 in and 0.090 for 1/4 in where the B36.10M page has 0.068 and 0.088, and an OD of 0.41 for 1/8 in where B36.10M has 0.405. Left out as a listing error: Metals4U's '4 in' Sch 40 row, which repeats the 3 in OD (3.500), wall and ID; its listing also has no 5 in. Its '3-1/2 in' row (OD 4.000, wall 0.226, ID 3.548) equals B36.10M. Continental's Sch 80 2-1/2 in row prints an ID of 1.323, but OD 2.875 − 2 × 0.276 is 2.323, so the ID shown here is the derived 2.323 (the printed wall 0.276 equals B36.10M's). Its 3 in row prints the OD as '3 1/2' (3.500).\n- Pipe weights (lb/ft) are Metals4U's aluminum column, shown only where its pipe chart prints them (Sch 40 1/4, 3/8, 1/2, 3/4; Sch 80 1/2, 3/4).\n- Files: 100 mm hollow sections of every round tube size that at least two distributors list. Aluminum pipe is not drawn again: it has the same OD and wall as steel pipe, whose sections are on steel-pipe-asme-b36-10m-nps-1-8-to-24 (scale the material, not the geometry). The length is Xem's example length. Square and rectangular aluminum tube: aluminum-square-tube-6063-t52 and aluminum-rectangular-tube-6063-t52.\n\nitem  OD as listed, or NPS  OD, in  OD, mm  wall, in  wall, mm  ID, in  ID, mm  sources / check\nRound tube 6061  1/4  0.25  6.35  0.035  0.89  0.180  4.57  listed by RM\nRound tube 6061  3/8  0.375  9.53  0.035  0.89  0.305  7.75  listed by RM\nRound tube 6061  3/8  0.375  9.53  0.049  1.24  0.277  7.04  listed by RM\nRound tube 6061  3/8  0.375  9.53  0.065  1.65  0.245  6.22  listed by OM+RM\nRound tube 6061  7/16  0.4375  11.11  0.035  0.89  0.367  9.33  listed by OM\nRound tube 6061  1/2  0.5  12.70  0.035  0.89  0.430  10.92  listed by OM\nRound tube 6061  1/2  0.5  12.70  0.049  1.24  0.402  10.21  listed by OM+RM\nRound tube 6061  1/2  0.5  12.70  0.058  1.47  0.384  9.75  listed by OM\nRound tube 6061  1/2  0.5  12.70  0.065  1.65  0.370  9.40  listed by RM\nRound tube 6061  9/16  0.5625  14.29  0.029  0.74  0.504  12.81  listed by OM\nRound tube 6061  5/8  0.625  15.88  0.049  1.24  0.527  13.39  listed by OM\nRound tube 6061  5/8  0.625  15.88  0.065  1.65  0.495  12.57  listed by OM\nRound tube 6061  5/8  0.625  15.88  0.1455  3.70  0.334  8.48  listed by CS; Continental 0.2578 lb/ft\nRound tube 6061  3/4  0.75  19.05  0.035  0.89  0.680  17.27  listed by OM\nRound tube 6061  3/4  0.75  19.05  0.058  1.47  0.634  16.10  listed by OM\nRound tube 6061  3/4  0.75  19.05  0.065  1.65  0.620  15.75  listed by OM+RM\nRound tube 6061  3/4  0.75  19.05  0.125  3.18  0.500  12.70  listed by OM\nRound tube 6061  1  1  25.40  0.049  1.24  0.902  22.91  listed by OM\nRound tube 6061  1  1  25.40  0.058  1.47  0.884  22.45  listed by OM\nRound tube 6061  1  1  25.40  0.065  1.65  0.870  22.10  listed by RM\nRound tube 6061  1  1  25.40  0.083  2.11  0.834  21.18  listed by OM\nRound tube 6061  1  1  25.40  0.125  3.18  0.750  19.05  listed by CS+RM; Continental 0.4041 lb/ft\nRound tube 6061  1  1  25.40  0.25  6.35  0.500  12.70  listed by CS; Continental 0.6927 lb/ft\nRound tube 6061  1-1/8  1.125  28.58  0.035  0.89  1.055  26.80  listed by OM\nRound tube 6061  1-1/4  1.25  31.75  0.065  1.65  1.120  28.45  listed by RM\nRound tube 6061  1-1/4  1.25  31.75  0.12  3.05  1.010  25.65  listed by RM\nRound tube 6061  1-1/4  1.25  31.75  0.125  3.18  1.000  25.40  listed by OM\nRound tube 6061  1-1/4  1.25  31.75  0.25  6.35  0.750  19.05  listed by CS; Continental 0.9236 lb/ft\nRound tube 6061  1-3/8  1.375  34.93  0.049  1.24  1.277  32.44  listed by OM\nRound tube 6061  1-3/8  1.375  34.93  0.058  1.47  1.259  31.98  listed by OM\nRound tube 6061  1-3/8  1.375  34.93  0.065  1.65  1.245  31.62  listed by OM\nRound tube 6061  1-3/8  1.375  34.93  0.125  3.18  1.125  28.58  listed by OM\nRound tube 6061  1-1/2  1.5  38.10  0.035  0.89  1.430  36.32  listed by OM\nRound tube 6061  1-1/2  1.5  38.10  0.049  1.24  1.402  35.61  listed by OM\nRound tube 6061  1-1/2  1.5  38.10  0.065  1.65  1.370  34.80  listed by OM+RM\nRound tube 6061  1-1/2  1.5  38.10  0.083  2.11  1.334  33.88  listed by OM\nRound tube 6061  1-1/2  1.5  38.10  0.12  3.05  1.260  32.00  listed by RM\nRound tube 6061  1-1/2  1.5  38.10  0.125  3.18  1.250  31.75  listed by CS; Continental 0.635 lb/ft\nRound tube 6061  1-1/2  1.5  38.10  0.25  6.35  1.000  25.40  listed by CS+OM; Continental 1.1545 lb/ft\nRound tube 6061  1-5/8  1.625  41.28  0.058  1.47  1.509  38.33  listed by OM\nRound tube 6061  1-5/8  1.625  41.28  0.125  3.18  1.375  34.93  listed by OM\nRound tube 6061  1-3/4  1.75  44.45  0.058  1.47  1.634  41.50  listed by OM\nRound tube 6061  1-3/4  1.75  44.45  0.25  6.35  1.250  31.75  listed by CS; Continental 1.3854 lb/ft\nRound tube 6061  1-7/8  1.875  47.63  0.058  1.47  1.759  44.68  listed by OM\nRound tube 6061  2  2  50.80  0.058  1.47  1.884  47.85  listed by OM\nRound tube 6061  2  2  50.80  0.065  1.65  1.870  47.50  listed by RM\nRound tube 6061  2  2  50.80  0.12  3.05  1.760  44.70  listed by RM\nRound tube 6061  2  2  50.80  0.125  3.18  1.750  44.45  listed by CS; Continental 0.8659 lb/ft\nRound tube 6061  2  2  50.80  0.25  6.35  1.500  38.10  listed by CS; Continental 1.6164 lb/ft\nRound tube 6061  2-1/4  2.25  57.15  0.065  1.65  2.120  53.85  listed by OM\nRound tube 6061  2-1/2  2.5  63.50  0.065  1.65  2.370  60.20  listed by OM+RM\nRound tube 6061  2-1/2  2.5  63.50  0.12  3.05  2.260  57.40  listed by RM\nRound tube 6061  2-1/2  2.5  63.50  0.125  3.18  2.250  57.15  listed by CS; Continental 1.0968 lb/ft\nRound tube 6061  2-1/2  2.5  63.50  0.25  6.35  2.000  50.80  listed by CS; Continental 2.0782 lb/ft\nRound tube 6061  2-1/2  2.5  63.50  0.5  12.70  1.500  38.10  listed by CS; Continental 3.6945 lb/ft\nRound tube 6061  2-3/4  2.75  69.85  0.25  6.35  2.250  57.15  listed by CS; Continental 2.3091 lb/ft\nRound tube 6061  2-3/4  2.75  69.85  0.5  12.70  1.750  44.45  listed by CS; Continental 4.1563 lb/ft\nRound tube 6061  3  3  76.20  0.065  1.65  2.870  72.90  listed by OM\nRound tube 6061  3  3  76.20  0.083  2.11  2.834  71.98  listed by OM\nRound tube 6061  3  3  76.20  0.125  3.18  2.750  69.85  listed by CS+RM; Continental 1.3277 lb/ft\nRound tube 6061  3  3  76.20  0.25  6.35  2.500  63.50  listed by CS; Continental 2.54 lb/ft\nRound tube 6061  3  3  76.20  0.375  9.53  2.250  57.15  listed by CS; Continental 3.6368 lb/ft\nRound tube 6061  3  3  76.20  0.5  12.70  2.000  50.80  listed by CS; Continental 4.6182 lb/ft\nRound tube 6061  3  3  76.20  0.75  19.05  1.500  38.10  listed by CS; Continental 6.2345 lb/ft\nRound tube 6061  3-1/4  3.25  82.55  0.25  6.35  2.750  69.85  listed by CS; Continental 2.7709 lb/ft\nRound tube 6061  3-1/2  3.5  88.90  0.065  1.65  3.370  85.60  listed by OM\nRound tube 6061  3-1/2  3.5  88.90  0.25  6.35  3.000  76.20  listed by CS; Continental 3.0018 lb/ft\nRound tube 6061  3-1/2  3.5  88.90  0.5  12.70  2.500  63.50  listed by CS; Continental 5.5418 lb/ft\nRound tube 6061  3-1/2  3.5  88.90  0.75  19.05  2.000  50.80  listed by CS+OM; Continental 7.62 lb/ft\nRound tube 6061  3-3/4  3.75  95.25  0.25  6.35  3.250  82.55  listed by CS; Continental 3.2327 lb/ft\nRound tube 6061  4  4  101.60  0.065  1.65  3.870  98.30  listed by OM\nRound tube 6061  4  4  101.60  0.125  3.18  3.750  95.25  listed by CS+RM; Continental 1.7895 lb/ft\nRound tube 6061  4  4  101.60  0.25  6.35  3.500  88.90  listed by AL\nRound tube 6061  4  4  101.60  0.375  9.53  3.250  82.55  listed by AL\nRound tube 6061  4  4  101.60  0.5  12.70  3.000  76.20  listed by AL\nRound tube 6061  4-1/2  4.5  114.30  0.25  6.35  4.000  101.60  listed by AL\nRound tube 6061  5  5  127.00  1  25.40  3.000  76.20  listed by AL\nRound tube 6061  5-1/2  5.5  139.70  0.5  12.70  4.500  114.30  listed by AL\nRound tube 6061  6  6  152.40  0.25  6.35  5.500  139.70  listed by AL\nRound tube 6061  6  6  152.40  0.5  12.70  5.000  127.00  listed by AL\nRound tube 6061  6  6  152.40  1  25.40  4.000  101.60  listed by AL\nRound tube 6061  7  7  177.80  0.5  12.70  6.000  152.40  listed by AL\nRound tube 6061  7  7  177.80  1  25.40  5.000  127.00  listed by OM\nRound tube 6061  12  12  304.80  1  25.40  10.000  254.00  listed by OM\nPipe Sch 40  NPS 1/8  0.410  10.41  0.070  1.78  0.269  6.83  B36.10M wall 0.068 in\nPipe Sch 40  NPS 1/4  0.540  13.72  0.090  2.29  0.364  9.25  B36.10M wall 0.088 in; Metals4U aluminum 0.147 lb/ft\nPipe Sch 40  NPS 3/8  0.675  17.15  0.091  2.31  0.493  12.52  B36.10M wall 0.091 in; Metals4U aluminum 0.196 lb/ft\nPipe Sch 40  NPS 1/2  0.840  21.34  0.109  2.77  0.622  15.80  B36.10M wall 0.109 in; Metals4U aluminum 0.294 lb/ft\nPipe Sch 40  NPS 3/4  1.050  26.67  0.113  2.87  0.824  20.93  B36.10M wall 0.113 in; Metals4U aluminum 0.391 lb/ft\nPipe Sch 40  NPS 1  1.315  33.40  0.133  3.38  1.049  26.64  B36.10M wall 0.133 in\nPipe Sch 40  NPS 1-1/4  1.660  42.16  0.140  3.56  1.380  35.05  B36.10M wall 0.140 in\nPipe Sch 40  NPS 1-1/2  1.900  48.26  0.145  3.68  1.610  40.89  B36.10M wall 0.145 in\nPipe Sch 40  NPS 2  2.375  60.33  0.154  3.91  2.067  52.50  B36.10M wall 0.154 in\nPipe Sch 40  NPS 2-1/2  2.875  73.03  0.203  5.16  2.469  62.71  B36.10M wall 0.203 in\nPipe Sch 40  NPS 3  3.500  88.90  0.216  5.49  3.068  77.93  B36.10M wall 0.216 in\nPipe Sch 40  NPS 3-1/2  4.000  101.60  0.226  5.74  3.548  90.12  B36.10M wall 0.226 in\nPipe Sch 40  NPS 6  6.625  168.28  0.280  7.11  6.065  154.05  B36.10M wall 0.280 in\nPipe Sch 80  NPS 1/4  0.540  13.72  0.119  3.02  0.302  7.67  B36.10M wall 0.119 in\nPipe Sch 80  NPS 3/8  0.675  17.15  0.126  3.20  0.423  10.74  B36.10M wall 0.126 in\nPipe Sch 80  NPS 1/2  0.840  21.34  0.147  3.73  0.546  13.87  B36.10M wall 0.147 in; Metals4U aluminum 0.384 lb/ft\nPipe Sch 80  NPS 3/4  1.050  26.67  0.154  3.91  0.742  18.85  B36.10M wall 0.154 in; Metals4U aluminum 0.52 lb/ft\nPipe Sch 80  NPS 1  1.315  33.40  0.179  4.55  0.957  24.31  B36.10M wall 0.179 in\nPipe Sch 80  NPS 1-1/4  1.660  42.16  0.191  4.85  1.278  32.46  B36.10M wall 0.191 in\nPipe Sch 80  NPS 1-1/2  1.900  48.26  0.200  5.08  1.500  38.10  B36.10M wall 0.200 in\nPipe Sch 80  NPS 2  2.375  60.33  0.218  5.54  1.939  49.25  B36.10M wall 0.218 in\nPipe Sch 80  NPS 2-1/2  2.875  73.03  0.276  7.01  2.323  59.00  B36.10M wall 0.276 in\nPipe Sch 80  NPS 3  3.500  88.90  0.300  7.62  2.900  73.66  B36.10M wall 0.300 in\nPipe Sch 80  NPS 4  4.500  114.30  0.337  8.56  3.826  97.18  B36.10M wall 0.337 in\nPipe Sch 80  NPS 5  5.563  141.30  0.375  9.53  4.813  122.25  B36.10M wall 0.375 in\nPipe Sch 80  NPS 6  6.625  168.28  0.432  10.97  5.761  146.33  B36.10M wall 0.432 in\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Continental Steel & Tube: Aluminum round tubing 6061-T6 / T6511: OD, ID, wall, weight per foot (first 25 of 44 items) — web — Distributor listing; numbers only — https://continentalsteel.com/viewitems/all-categories/aluminum-round-tubing\n- Online Metals: Aluminum round tube 6061 (and 6061-T6 drawn): OD, wall, ID (first pages of 228 / 138 results) — web — Distributor listing; numbers only — https://www.onlinemetals.com/en/buy/aluminum-round-tube-6061\n- Alcobra Metals: 6061-T6 aluminum round tube, extruded seamless: OD x wall (10 listed) — web — Distributor listing; numbers only — https://alcobrametals.com/?p=76869\n- Russel Metals: 6061-T6 aluminum round tubing: OD, wall, weight per foot — web — Distributor page; numbers only — https://www.russelmetals.com/en/company/russel-metals-atlantic/product/aluminum-extrusions/round-tubing/\n- Continental Steel & Tube: Seamless aluminum pipe 6061-T6 Schedule 80: nominal size, OD, ID, wall (1 to 6 in) — web — Distributor listing; numbers only — https://continentalsteel.com/viewitems/aluminum-tubing-and-pipe/seamless-aluminum-pipe-series-6061-t6-schedule-80\n- Metals4U: Aluminum pipe schedule 40 6061-T6: pipe chart (1/8 to 1 in, Sch 10 / 40 / 80 walls, aluminum weights) and product listing 1-1/4 to 6 in — web — Distributor page; numbers only — https://www.metals4uonline.com/aluminum-pipe-schedule-40-6061-t6/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/aluminum-round-tube-and-pipe-6061-6063/index.json\nAPI: https://xemstudio.com/api/geometry?object=aluminum-round-tube-and-pipe-6061-6063\n",
 "sources": [
  {
   "publisher": "Continental Steel & Tube",
   "title": "Aluminum round tubing 6061-T6 / T6511: OD, ID, wall, weight per foot (first 25 of 44 items)",
   "url": "https://continentalsteel.com/viewitems/all-categories/aluminum-round-tubing",
   "formats": [
    "web"
   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
   "hosted": false
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  {
   "publisher": "Online Metals",
   "title": "Aluminum round tube 6061 (and 6061-T6 drawn): OD, wall, ID (first pages of 228 / 138 results)",
   "url": "https://www.onlinemetals.com/en/buy/aluminum-round-tube-6061",
   "formats": [
    "web"
   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Alcobra Metals",
   "title": "6061-T6 aluminum round tube, extruded seamless: OD x wall (10 listed)",
   "url": "https://alcobrametals.com/?p=76869",
   "formats": [
    "web"
   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Russel Metals",
   "title": "6061-T6 aluminum round tubing: OD, wall, weight per foot",
   "url": "https://www.russelmetals.com/en/company/russel-metals-atlantic/product/aluminum-extrusions/round-tubing/",
   "formats": [
    "web"
   ],
   "license": "Distributor page; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Continental Steel & Tube",
   "title": "Seamless aluminum pipe 6061-T6 Schedule 80: nominal size, OD, ID, wall (1 to 6 in)",
   "url": "https://continentalsteel.com/viewitems/aluminum-tubing-and-pipe/seamless-aluminum-pipe-series-6061-t6-schedule-80",
   "formats": [
    "web"
   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Metals4U",
   "title": "Aluminum pipe schedule 40 6061-T6: pipe chart (1/8 to 1 in, Sch 10 / 40 / 80 walls, aluminum weights) and product listing 1-1/4 to 6 in",
   "url": "https://www.metals4uonline.com/aluminum-pipe-schedule-40-6061-t6/",
   "formats": [
    "web"
   ],
   "license": "Distributor page; numbers only",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "aluminum-square-tube-6063-t52",
  "aluminum-rectangular-tube-6063-t52",
  "steel-pipe-asme-b36-10m-nps-1-8-to-24",
  "schedule-40-pipe",
  "bar-stock-sizes-round-square-steel-aluminum",
  "dom-mechanical-steel-round-tube-astm-a513",
  "carbon-fibre-tube-sizes"
 ],
 "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 are common wall thicknesses of 1 inch aluminum round tube?",
   "a": "0.049, 0.058, 0.065, 0.083, 0.125 and 0.250 in appear in the distributors' lists read (0.065 and 0.125 most often)."
  },
  {
   "q": "What is the OD of 2 inch Schedule 40 aluminum pipe?",
   "a": "2.375 in (60.33 mm) with a 0.154 in wall (ID 2.067 in); Schedule 80 has a 0.218 in wall."
  },
  {
   "q": "Is aluminum pipe the same size as steel pipe?",
   "a": "Yes in OD and schedule wall: the Schedule 40 and 80 walls printed for aluminum equal the B36.10M steel pipe walls (differences at 1/8 and 1/4 in Sch 40 are in the notes)."
  }
 ],
 "files_license": null,
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   "note": "6061 aluminum round tube 3/8 in OD × 0.065 in wall (listed by 2 distributors): OD Ø9.53, wall 1.651, bore Ø6.22, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
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   "note": "6061 aluminum round tube 1/2 in OD × 0.049 in wall (listed by 2 distributors): OD Ø12.70, wall 1.245, bore Ø10.21, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
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   "note": "6061 aluminum round tube 3/4 in OD × 0.065 in wall (listed by 2 distributors): OD Ø19.05, wall 1.651, bore Ø15.75, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
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   "note": "6061 aluminum round tube 1 in OD × 0.125 in wall (listed by 2 distributors): OD Ø25.40, wall 3.175, bore Ø19.05, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
  },
  {
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   "note": "6061 aluminum round tube 1-1/2 in OD × 0.065 in wall (listed by 2 distributors): OD Ø38.10, wall 1.651, bore Ø34.80, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
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   "note": "6061 aluminum round tube 1-1/2 in OD × 0.25 in wall (listed by 2 distributors): OD Ø38.10, wall 6.350, bore Ø25.40, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
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  {
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   "note": "6061 aluminum round tube 2-1/2 in OD × 0.065 in wall (listed by 2 distributors): OD Ø63.50, wall 1.651, bore Ø60.20, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
  },
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   "note": "6061 aluminum round tube 3 in OD × 0.125 in wall (listed by 2 distributors): OD Ø76.20, wall 3.175, bore Ø69.85, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
  },
  {
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   "stl": "https://xemstudio.com/files/hardware/aluminum-round-tube-and-pipe-6061-6063/al-tube-3-1-2in-x-0p750-100mm.stl",
   "note": "6061 aluminum round tube 3-1/2 in OD × 0.75 in wall (listed by 2 distributors): OD Ø88.90, wall 19.050, bore Ø50.80, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
  },
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   "stl": "https://xemstudio.com/files/hardware/aluminum-round-tube-and-pipe-6061-6063/al-tube-4in-x-0p125-100mm.stl",
   "note": "6061 aluminum round tube 4 in OD × 0.125 in wall (listed by 2 distributors): OD Ø101.60, wall 3.175, bore Ø95.25, 100 mm long (Xem's example length; cut to the length you need); plain hollow section, no ends, seam or finish"
  }
 ],
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}