{
 "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": "dom-mechanical-steel-round-tube-astm-a513",
 "name": "DOM / seamless mechanical round steel tube (ASTM A513): common OD × wall sizes, 3/8 to 12 in OD, + 100 mm sections for the sizes distributors agree on",
 "kind": "standard",
 "category": "Tri-clamp & pipe",
 "group": "Pipe, tube & threads",
 "year": null,
 "question": "What OD × wall sizes does DOM (drawn-over-mandrel) steel tube come in, and what is the ID of 1-1/2 × 0.120 DOM?",
 "tags": [
  "dom tube",
  "dom tubing",
  "drawn over mandrel",
  "a513",
  "astm a513 type 5",
  "mechanical tubing",
  "round steel tube",
  "1020 dom",
  "steel tube",
  "roll cage tube",
  "hollow section"
 ],
 "aliases": [
  "dom tubing sizes",
  "1.5 x 0.120 dom id",
  "1 3/4 dom tube wall",
  "dom tube 1.25 x 0.120",
  "dom 2 inch od tube",
  "a513 type 5 dom dimensions",
  "dom tube 0.095 wall",
  "dom tubing chart od wall id",
  "1-3/8 dom tubing 0.095",
  "dom tubing for roll cage 1.75",
  "dom 1 inch 0.120 id",
  "dom steel tube 3 inch od",
  "mechanical round tube sizes",
  "dom tubing 4 inch od"
 ],
 "overall_mm": {
  "length": 38.1,
  "width": 38.1,
  "height": 100
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 23,
 "url": "https://xemstudio.com/objects/dom-mechanical-steel-round-tube-astm-a513/",
 "sheet_txt": "https://xemstudio.com/objects/dom-mechanical-steel-round-tube-astm-a513/sheet.txt",
 "sheet": {
  "basis": "Metals Depot's 117-size DOM (A513 Type 5) table, Alcobra Metals' 1020 DOM list (1-1/4 and 1-1/2 in OD) and Online Metals' A513 list (first 24 sizes read) cross-checked; weights left out",
  "overall_mm": {
   "length": 38.1,
   "width": 38.1,
   "height": 100
  },
  "notes": [
   "DOM (drawn over mandrel) round steel tube is sold by outside diameter and wall in inches; Metals Depot's listing is headed DOM (A513-T5) and Online Metals' list A513. The table is the union of three distributors' lists: 130 OD × wall sizes (117 from Metals Depot, 12 from Alcobra Metals, 24 from Online Metals, which overlap). The last column shows which distributors list each size (MD Metals Depot, AL Alcobra, OM Online Metals). Alcobra and Online Metals print only the first page of their lists in the text read (Alcobra 12 of 62, Online Metals 25 of 139), so a size missing from them is not evidence that it is not made.",
   "ID is OD − 2 × wall. Metals Depot prints an ID for every row and Online Metals for its rows; every Metals Depot ID equals OD − 2 × wall to within 0.002 in (checked here; for example 1-1/2 × 0.120 prints 1.260, 2 × 0.250 prints 1.50), and the Online Metals IDs to within 0.005 in (it rounds some to 0.01 in, for example 0.28 for 3/8 × 0.049, which is 0.277). Alcobra's list has no ID. Two Online Metals rows have a conflict between their title and detail (5/8 × 0.065 ID 0.5 vs 0.495, 3/4 × 0.049 wall 0.049 vs 0.154); the first is kept at the wall (0.065, ID derived 0.495), the second is dropped.",
   "Weights are not given: Metals Depot's weight column repeats values that cannot both be right (for example 1 in × 0.065 and 1 in × 0.083 both print 0.65 lb/ft, and 5/8 in × 0.156 and × 0.188 both print 0.90), so none of its weights is used.",
   "Not on this page: the standard's OD and wall tolerances (ASTM A513 was not read), steel grade (Alcobra's list is 1020; the others do not state the grade here). The Metals Depot page also lists J525 hydraulic and A519 seamless tube, which are not DOM and are left out. Related tables: structural round HSS (aisc-hss-round), steel pipe by NPS (steel-pipe-asme-b36-10m-nps-1-8-to-24).",
   "Files: 100 mm hollow sections of the 23 OD × wall sizes that at least two distributors list; the length is Xem's example length."
  ],
  "table": {
   "columns": [
    "OD as listed, in",
    "OD, in",
    "OD, mm",
    "wall, in",
    "wall, mm",
    "ID, in (OD − 2 × wall)",
    "ID, mm",
    "distributors"
   ],
   "rows": [
    [
     "1/4",
     "0.25",
     "6.35",
     "0.035",
     "0.89",
     "0.180",
     "4.57",
     "OM"
    ],
    [
     "3/8",
     "0.375",
     "9.53",
     "0.035",
     "0.89",
     "0.305",
     "7.75",
     "MD"
    ],
    [
     "3/8",
     "0.375",
     "9.53",
     "0.049",
     "1.24",
     "0.277",
     "7.04",
     "OM"
    ],
    [
     "3/8",
     "0.375",
     "9.53",
     "0.065",
     "1.65",
     "0.245",
     "6.22",
     "MD+OM"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.035",
     "0.89",
     "0.430",
     "10.92",
     "OM"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.049",
     "1.24",
     "0.402",
     "10.21",
     "MD+OM"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.065",
     "1.65",
     "0.370",
     "9.40",
     "MD+OM"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.083",
     "2.11",
     "0.334",
     "8.48",
     "MD"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.095",
     "2.41",
     "0.310",
     "7.87",
     "OM"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.120",
     "3.05",
     "0.260",
     "6.60",
     "MD+OM"
    ],
    [
     "1/2",
     "0.5",
     "12.70",
     "0.156",
     "3.96",
     "0.188",
     "4.78",
     "MD"
    ],
    [
     "9/16",
     "0.5625",
     "14.29",
     "0.120",
     "3.05",
     "0.323",
     "8.19",
     "MD"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.035",
     "0.89",
     "0.555",
     "14.10",
     "OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.049",
     "1.24",
     "0.527",
     "13.39",
     "MD"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.058",
     "1.47",
     "0.509",
     "12.93",
     "MD+OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.065",
     "1.65",
     "0.495",
     "12.57",
     "MD+OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.083",
     "2.11",
     "0.459",
     "11.66",
     "OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.095",
     "2.41",
     "0.435",
     "11.05",
     "OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.120",
     "3.05",
     "0.385",
     "9.78",
     "MD+OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.156",
     "3.96",
     "0.313",
     "7.95",
     "MD+OM"
    ],
    [
     "5/8",
     "0.625",
     "15.88",
     "0.188",
     "4.78",
     "0.249",
     "6.32",
     "MD"
    ],
    [
     "11/16",
     "0.6875",
     "17.46",
     "0.032",
     "0.81",
     "0.623",
     "15.84",
     "OM"
    ],
    [
     "11/16",
     "0.6875",
     "17.46",
     "0.120",
     "3.05",
     "0.448",
     "11.37",
     "OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.035",
     "0.89",
     "0.680",
     "17.27",
     "OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.049",
     "1.24",
     "0.652",
     "16.56",
     "MD"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.065",
     "1.65",
     "0.620",
     "15.75",
     "MD+OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.083",
     "2.11",
     "0.584",
     "14.83",
     "OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.095",
     "2.41",
     "0.560",
     "14.22",
     "MD+OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.109",
     "2.77",
     "0.532",
     "13.51",
     "MD+OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.120",
     "3.05",
     "0.510",
     "12.95",
     "MD+OM"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.156",
     "3.96",
     "0.438",
     "11.13",
     "MD"
    ],
    [
     "3/4",
     "0.75",
     "19.05",
     "0.188",
     "4.78",
     "0.374",
     "9.50",
     "OM"
    ],
    [
     "7/8",
     "0.875",
     "22.23",
     "0.058",
     "1.47",
     "0.759",
     "19.28",
     "MD"
    ],
    [
     "7/8",
     "0.875",
     "22.23",
     "0.065",
     "1.65",
     "0.745",
     "18.92",
     "MD"
    ],
    [
     "7/8",
     "0.875",
     "22.23",
     "0.120",
     "3.05",
     "0.635",
     "16.13",
     "MD"
    ],
    [
     "7/8",
     "0.875",
     "22.23",
     "0.156",
     "3.96",
     "0.563",
     "14.30",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.058",
     "1.47",
     "0.884",
     "22.45",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.065",
     "1.65",
     "0.870",
     "22.10",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.083",
     "2.11",
     "0.834",
     "21.18",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.109",
     "2.77",
     "0.782",
     "19.86",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.120",
     "3.05",
     "0.760",
     "19.30",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.156",
     "3.96",
     "0.688",
     "17.48",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.188",
     "4.78",
     "0.624",
     "15.85",
     "MD"
    ],
    [
     "1",
     "1",
     "25.40",
     "0.250",
     "6.35",
     "0.500",
     "12.70",
     "MD"
    ],
    [
     "1-1/8",
     "1.125",
     "28.58",
     "0.065",
     "1.65",
     "0.995",
     "25.27",
     "MD"
    ],
    [
     "1-1/8",
     "1.125",
     "28.58",
     "0.120",
     "3.05",
     "0.885",
     "22.48",
     "MD"
    ],
    [
     "1-1/8",
     "1.125",
     "28.58",
     "0.156",
     "3.96",
     "0.813",
     "20.65",
     "MD"
    ],
    [
     "1-1/8",
     "1.125",
     "28.58",
     "0.250",
     "6.35",
     "0.625",
     "15.88",
     "MD"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.065",
     "1.65",
     "1.120",
     "28.45",
     "AL+MD"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.095",
     "2.41",
     "1.060",
     "26.92",
     "AL+MD"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.109",
     "2.77",
     "1.032",
     "26.21",
     "MD"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.120",
     "3.05",
     "1.010",
     "25.65",
     "AL+MD"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.134",
     "3.40",
     "0.982",
     "24.94",
     "AL"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.188",
     "4.78",
     "0.874",
     "22.20",
     "AL+MD"
    ],
    [
     "1-1/4",
     "1.25",
     "31.75",
     "0.250",
     "6.35",
     "0.750",
     "19.05",
     "MD"
    ],
    [
     "1-5/16",
     "1.3125",
     "33.34",
     "0.120",
     "3.05",
     "1.073",
     "27.24",
     "MD"
    ],
    [
     "1-3/8",
     "1.375",
     "34.93",
     "0.065",
     "1.65",
     "1.245",
     "31.62",
     "MD"
    ],
    [
     "1-3/8",
     "1.375",
     "34.93",
     "0.095",
     "2.41",
     "1.185",
     "30.10",
     "MD"
    ],
    [
     "1-3/8",
     "1.375",
     "34.93",
     "0.125",
     "3.18",
     "1.125",
     "28.58",
     "MD"
    ],
    [
     "1-3/8",
     "1.375",
     "34.93",
     "0.250",
     "6.35",
     "0.875",
     "22.23",
     "MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.065",
     "1.65",
     "1.370",
     "34.80",
     "AL+MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.083",
     "2.11",
     "1.334",
     "33.88",
     "AL+MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.095",
     "2.41",
     "1.310",
     "33.27",
     "AL+MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.109",
     "2.77",
     "1.282",
     "32.56",
     "MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.120",
     "3.05",
     "1.260",
     "32.00",
     "AL+MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.188",
     "4.78",
     "1.124",
     "28.55",
     "AL+MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.250",
     "6.35",
     "1.000",
     "25.40",
     "AL+MD"
    ],
    [
     "1-1/2",
     "1.5",
     "38.10",
     "0.375",
     "9.53",
     "0.750",
     "19.05",
     "AL+MD"
    ],
    [
     "1-9/16",
     "1.5625",
     "39.69",
     "0.120",
     "3.05",
     "1.323",
     "33.59",
     "MD"
    ],
    [
     "1-5/8",
     "1.625",
     "41.28",
     "0.065",
     "1.65",
     "1.495",
     "37.97",
     "MD"
    ],
    [
     "1-5/8",
     "1.625",
     "41.28",
     "0.120",
     "3.05",
     "1.385",
     "35.18",
     "MD"
    ],
    [
     "1-5/8",
     "1.625",
     "41.28",
     "0.134",
     "3.40",
     "1.357",
     "34.47",
     "MD"
    ],
    [
     "1-5/8",
     "1.625",
     "41.28",
     "0.156",
     "3.96",
     "1.313",
     "33.35",
     "MD"
    ],
    [
     "1-3/4",
     "1.75",
     "44.45",
     "0.065",
     "1.65",
     "1.620",
     "41.15",
     "MD"
    ],
    [
     "1-3/4",
     "1.75",
     "44.45",
     "0.095",
     "2.41",
     "1.560",
     "39.62",
     "MD"
    ],
    [
     "1-3/4",
     "1.75",
     "44.45",
     "0.109",
     "2.77",
     "1.532",
     "38.91",
     "MD"
    ],
    [
     "1-3/4",
     "1.75",
     "44.45",
     "0.120",
     "3.05",
     "1.510",
     "38.35",
     "MD"
    ],
    [
     "1-3/4",
     "1.75",
     "44.45",
     "0.188",
     "4.78",
     "1.374",
     "34.90",
     "MD"
    ],
    [
     "1-3/4",
     "1.75",
     "44.45",
     "0.250",
     "6.35",
     "1.250",
     "31.75",
     "MD"
    ],
    [
     "1-7/8",
     "1.875",
     "47.63",
     "0.120",
     "3.05",
     "1.635",
     "41.53",
     "MD"
    ],
    [
     "1-7/8",
     "1.875",
     "47.63",
     "0.250",
     "6.35",
     "1.375",
     "34.93",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.065",
     "1.65",
     "1.870",
     "47.50",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.095",
     "2.41",
     "1.810",
     "45.97",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.120",
     "3.05",
     "1.760",
     "44.70",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.188",
     "4.78",
     "1.624",
     "41.25",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.250",
     "6.35",
     "1.500",
     "38.10",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.375",
     "9.53",
     "1.250",
     "31.75",
     "MD"
    ],
    [
     "2",
     "2",
     "50.80",
     "0.500",
     "12.70",
     "1.000",
     "25.40",
     "MD"
    ],
    [
     "2-1/4",
     "2.25",
     "57.15",
     "0.120",
     "3.05",
     "2.010",
     "51.05",
     "MD"
    ],
    [
     "2-1/4",
     "2.25",
     "57.15",
     "0.250",
     "6.35",
     "1.750",
     "44.45",
     "MD"
    ],
    [
     "2-1/4",
     "2.25",
     "57.15",
     "0.500",
     "12.70",
     "1.250",
     "31.75",
     "MD"
    ],
    [
     "2-3/8",
     "2.375",
     "60.33",
     "0.188",
     "4.78",
     "1.999",
     "50.77",
     "MD"
    ],
    [
     "2-1/2",
     "2.5",
     "63.50",
     "0.120",
     "3.05",
     "2.260",
     "57.40",
     "MD"
    ],
    [
     "2-1/2",
     "2.5",
     "63.50",
     "0.250",
     "6.35",
     "2.000",
     "50.80",
     "MD"
    ],
    [
     "2-1/2",
     "2.5",
     "63.50",
     "0.375",
     "9.53",
     "1.750",
     "44.45",
     "MD"
    ],
    [
     "2-1/2",
     "2.5",
     "63.50",
     "0.500",
     "12.70",
     "1.500",
     "38.10",
     "MD"
    ],
    [
     "2-5/8",
     "2.625",
     "66.68",
     "0.120",
     "3.05",
     "2.385",
     "60.58",
     "MD"
    ],
    [
     "2-3/4",
     "2.75",
     "69.85",
     "0.120",
     "3.05",
     "2.510",
     "63.75",
     "MD"
    ],
    [
     "2-3/4",
     "2.75",
     "69.85",
     "0.375",
     "9.53",
     "2.000",
     "50.80",
     "MD"
    ],
    [
     "3",
     "3",
     "76.20",
     "0.065",
     "1.65",
     "2.870",
     "72.90",
     "MD"
    ],
    [
     "3",
     "3",
     "76.20",
     "0.120",
     "3.05",
     "2.760",
     "70.10",
     "MD"
    ],
    [
     "3",
     "3",
     "76.20",
     "0.188",
     "4.78",
     "2.624",
     "66.65",
     "MD"
    ],
    [
     "3",
     "3",
     "76.20",
     "0.250",
     "6.35",
     "2.500",
     "63.50",
     "MD"
    ],
    [
     "3",
     "3",
     "76.20",
     "0.375",
     "9.53",
     "2.250",
     "57.15",
     "MD"
    ],
    [
     "3",
     "3",
     "76.20",
     "0.500",
     "12.70",
     "2.000",
     "50.80",
     "MD"
    ],
    [
     "3-1/2",
     "3.5",
     "88.90",
     "0.120",
     "3.05",
     "3.260",
     "82.80",
     "MD"
    ],
    [
     "3-1/2",
     "3.5",
     "88.90",
     "0.188",
     "4.78",
     "3.124",
     "79.35",
     "MD"
    ],
    [
     "3-1/2",
     "3.5",
     "88.90",
     "0.250",
     "6.35",
     "3.000",
     "76.20",
     "MD"
    ],
    [
     "4",
     "4",
     "101.60",
     "0.065",
     "1.65",
     "3.870",
     "98.30",
     "MD"
    ],
    [
     "4",
     "4",
     "101.60",
     "0.125",
     "3.18",
     "3.750",
     "95.25",
     "MD"
    ],
    [
     "4",
     "4",
     "101.60",
     "0.188",
     "4.78",
     "3.624",
     "92.05",
     "MD"
    ],
    [
     "4",
     "4",
     "101.60",
     "0.250",
     "6.35",
     "3.500",
     "88.90",
     "MD"
    ],
    [
     "4",
     "4",
     "101.60",
     "0.375",
     "9.53",
     "3.250",
     "82.55",
     "MD"
    ],
    [
     "4",
     "4",
     "101.60",
     "0.500",
     "12.70",
     "3.000",
     "76.20",
     "MD"
    ],
    [
     "5",
     "5",
     "127.00",
     "0.125",
     "3.18",
     "4.750",
     "120.65",
     "MD"
    ],
    [
     "5",
     "5",
     "127.00",
     "0.188",
     "4.78",
     "4.624",
     "117.45",
     "MD"
    ],
    [
     "5",
     "5",
     "127.00",
     "0.250",
     "6.35",
     "4.500",
     "114.30",
     "MD"
    ],
    [
     "6",
     "6",
     "152.40",
     "0.125",
     "3.18",
     "5.750",
     "146.05",
     "MD"
    ],
    [
     "6",
     "6",
     "152.40",
     "0.250",
     "6.35",
     "5.500",
     "139.70",
     "MD"
    ],
    [
     "6",
     "6",
     "152.40",
     "0.375",
     "9.53",
     "5.250",
     "133.35",
     "MD"
    ],
    [
     "6",
     "6",
     "152.40",
     "0.500",
     "12.70",
     "5.000",
     "127.00",
     "MD"
    ],
    [
     "8",
     "8",
     "203.20",
     "0.250",
     "6.35",
     "7.500",
     "190.50",
     "MD"
    ],
    [
     "8",
     "8",
     "203.20",
     "0.375",
     "9.53",
     "7.250",
     "184.15",
     "MD"
    ],
    [
     "8",
     "8",
     "203.20",
     "0.500",
     "12.70",
     "7.000",
     "177.80",
     "MD"
    ],
    [
     "10",
     "10",
     "254.00",
     "0.250",
     "6.35",
     "9.500",
     "241.30",
     "MD"
    ],
    [
     "10",
     "10",
     "254.00",
     "0.375",
     "9.53",
     "9.250",
     "234.95",
     "MD"
    ],
    [
     "10",
     "10",
     "254.00",
     "0.500",
     "12.70",
     "9.000",
     "228.60",
     "MD"
    ],
    [
     "12",
     "12",
     "304.80",
     "0.250",
     "6.35",
     "11.500",
     "292.10",
     "MD"
    ],
    [
     "12",
     "12",
     "304.80",
     "0.375",
     "9.53",
     "11.250",
     "285.75",
     "MD"
    ],
    [
     "12",
     "12",
     "304.80",
     "0.500",
     "12.70",
     "11.000",
     "279.40",
     "MD"
    ]
   ]
  }
 },
 "sheet_text": "DOM / seamless mechanical round steel tube (ASTM A513): common OD × wall sizes, 3/8 to 12 in OD, + 100 mm sections for the sizes distributors agree on — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/dom-mechanical-steel-round-tube-astm-a513/  (sheet CC BY 4.0)\nBasis: Metals Depot's 117-size DOM (A513 Type 5) table, Alcobra Metals' 1020 DOM list (1-1/4 and 1-1/2 in OD) and Online Metals' A513 list (first 24 sizes read) cross-checked; weights left out\nCatalog version: 2026-10-20\n\nOverall (mm): length 38.1, width 38.1, height 100.0\n- DOM (drawn over mandrel) round steel tube is sold by outside diameter and wall in inches; Metals Depot's listing is headed DOM (A513-T5) and Online Metals' list A513. The table is the union of three distributors' lists: 130 OD × wall sizes (117 from Metals Depot, 12 from Alcobra Metals, 24 from Online Metals, which overlap). The last column shows which distributors list each size (MD Metals Depot, AL Alcobra, OM Online Metals). Alcobra and Online Metals print only the first page of their lists in the text read (Alcobra 12 of 62, Online Metals 25 of 139), so a size missing from them is not evidence that it is not made.\n- ID is OD − 2 × wall. Metals Depot prints an ID for every row and Online Metals for its rows; every Metals Depot ID equals OD − 2 × wall to within 0.002 in (checked here; for example 1-1/2 × 0.120 prints 1.260, 2 × 0.250 prints 1.50), and the Online Metals IDs to within 0.005 in (it rounds some to 0.01 in, for example 0.28 for 3/8 × 0.049, which is 0.277). Alcobra's list has no ID. Two Online Metals rows have a conflict between their title and detail (5/8 × 0.065 ID 0.5 vs 0.495, 3/4 × 0.049 wall 0.049 vs 0.154); the first is kept at the wall (0.065, ID derived 0.495), the second is dropped.\n- Weights are not given: Metals Depot's weight column repeats values that cannot both be right (for example 1 in × 0.065 and 1 in × 0.083 both print 0.65 lb/ft, and 5/8 in × 0.156 and × 0.188 both print 0.90), so none of its weights is used.\n- Not on this page: the standard's OD and wall tolerances (ASTM A513 was not read), steel grade (Alcobra's list is 1020; the others do not state the grade here). The Metals Depot page also lists J525 hydraulic and A519 seamless tube, which are not DOM and are left out. Related tables: structural round HSS (aisc-hss-round), steel pipe by NPS (steel-pipe-asme-b36-10m-nps-1-8-to-24).\n- Files: 100 mm hollow sections of the 23 OD × wall sizes that at least two distributors list; the length is Xem's example length.\n\nOD as listed, in  OD, in  OD, mm  wall, in  wall, mm  ID, in (OD − 2 × wall)  ID, mm  distributors\n1/4  0.25  6.35  0.035  0.89  0.180  4.57  OM\n3/8  0.375  9.53  0.035  0.89  0.305  7.75  MD\n3/8  0.375  9.53  0.049  1.24  0.277  7.04  OM\n3/8  0.375  9.53  0.065  1.65  0.245  6.22  MD+OM\n1/2  0.5  12.70  0.035  0.89  0.430  10.92  OM\n1/2  0.5  12.70  0.049  1.24  0.402  10.21  MD+OM\n1/2  0.5  12.70  0.065  1.65  0.370  9.40  MD+OM\n1/2  0.5  12.70  0.083  2.11  0.334  8.48  MD\n1/2  0.5  12.70  0.095  2.41  0.310  7.87  OM\n1/2  0.5  12.70  0.120  3.05  0.260  6.60  MD+OM\n1/2  0.5  12.70  0.156  3.96  0.188  4.78  MD\n9/16  0.5625  14.29  0.120  3.05  0.323  8.19  MD\n5/8  0.625  15.88  0.035  0.89  0.555  14.10  OM\n5/8  0.625  15.88  0.049  1.24  0.527  13.39  MD\n5/8  0.625  15.88  0.058  1.47  0.509  12.93  MD+OM\n5/8  0.625  15.88  0.065  1.65  0.495  12.57  MD+OM\n5/8  0.625  15.88  0.083  2.11  0.459  11.66  OM\n5/8  0.625  15.88  0.095  2.41  0.435  11.05  OM\n5/8  0.625  15.88  0.120  3.05  0.385  9.78  MD+OM\n5/8  0.625  15.88  0.156  3.96  0.313  7.95  MD+OM\n5/8  0.625  15.88  0.188  4.78  0.249  6.32  MD\n11/16  0.6875  17.46  0.032  0.81  0.623  15.84  OM\n11/16  0.6875  17.46  0.120  3.05  0.448  11.37  OM\n3/4  0.75  19.05  0.035  0.89  0.680  17.27  OM\n3/4  0.75  19.05  0.049  1.24  0.652  16.56  MD\n3/4  0.75  19.05  0.065  1.65  0.620  15.75  MD+OM\n3/4  0.75  19.05  0.083  2.11  0.584  14.83  OM\n3/4  0.75  19.05  0.095  2.41  0.560  14.22  MD+OM\n3/4  0.75  19.05  0.109  2.77  0.532  13.51  MD+OM\n3/4  0.75  19.05  0.120  3.05  0.510  12.95  MD+OM\n3/4  0.75  19.05  0.156  3.96  0.438  11.13  MD\n3/4  0.75  19.05  0.188  4.78  0.374  9.50  OM\n7/8  0.875  22.23  0.058  1.47  0.759  19.28  MD\n7/8  0.875  22.23  0.065  1.65  0.745  18.92  MD\n7/8  0.875  22.23  0.120  3.05  0.635  16.13  MD\n7/8  0.875  22.23  0.156  3.96  0.563  14.30  MD\n1  1  25.40  0.058  1.47  0.884  22.45  MD\n1  1  25.40  0.065  1.65  0.870  22.10  MD\n1  1  25.40  0.083  2.11  0.834  21.18  MD\n1  1  25.40  0.109  2.77  0.782  19.86  MD\n1  1  25.40  0.120  3.05  0.760  19.30  MD\n1  1  25.40  0.156  3.96  0.688  17.48  MD\n1  1  25.40  0.188  4.78  0.624  15.85  MD\n1  1  25.40  0.250  6.35  0.500  12.70  MD\n1-1/8  1.125  28.58  0.065  1.65  0.995  25.27  MD\n1-1/8  1.125  28.58  0.120  3.05  0.885  22.48  MD\n1-1/8  1.125  28.58  0.156  3.96  0.813  20.65  MD\n1-1/8  1.125  28.58  0.250  6.35  0.625  15.88  MD\n1-1/4  1.25  31.75  0.065  1.65  1.120  28.45  AL+MD\n1-1/4  1.25  31.75  0.095  2.41  1.060  26.92  AL+MD\n1-1/4  1.25  31.75  0.109  2.77  1.032  26.21  MD\n1-1/4  1.25  31.75  0.120  3.05  1.010  25.65  AL+MD\n1-1/4  1.25  31.75  0.134  3.40  0.982  24.94  AL\n1-1/4  1.25  31.75  0.188  4.78  0.874  22.20  AL+MD\n1-1/4  1.25  31.75  0.250  6.35  0.750  19.05  MD\n1-5/16  1.3125  33.34  0.120  3.05  1.073  27.24  MD\n1-3/8  1.375  34.93  0.065  1.65  1.245  31.62  MD\n1-3/8  1.375  34.93  0.095  2.41  1.185  30.10  MD\n1-3/8  1.375  34.93  0.125  3.18  1.125  28.58  MD\n1-3/8  1.375  34.93  0.250  6.35  0.875  22.23  MD\n1-1/2  1.5  38.10  0.065  1.65  1.370  34.80  AL+MD\n1-1/2  1.5  38.10  0.083  2.11  1.334  33.88  AL+MD\n1-1/2  1.5  38.10  0.095  2.41  1.310  33.27  AL+MD\n1-1/2  1.5  38.10  0.109  2.77  1.282  32.56  MD\n1-1/2  1.5  38.10  0.120  3.05  1.260  32.00  AL+MD\n1-1/2  1.5  38.10  0.188  4.78  1.124  28.55  AL+MD\n1-1/2  1.5  38.10  0.250  6.35  1.000  25.40  AL+MD\n1-1/2  1.5  38.10  0.375  9.53  0.750  19.05  AL+MD\n1-9/16  1.5625  39.69  0.120  3.05  1.323  33.59  MD\n1-5/8  1.625  41.28  0.065  1.65  1.495  37.97  MD\n1-5/8  1.625  41.28  0.120  3.05  1.385  35.18  MD\n1-5/8  1.625  41.28  0.134  3.40  1.357  34.47  MD\n1-5/8  1.625  41.28  0.156  3.96  1.313  33.35  MD\n1-3/4  1.75  44.45  0.065  1.65  1.620  41.15  MD\n1-3/4  1.75  44.45  0.095  2.41  1.560  39.62  MD\n1-3/4  1.75  44.45  0.109  2.77  1.532  38.91  MD\n1-3/4  1.75  44.45  0.120  3.05  1.510  38.35  MD\n1-3/4  1.75  44.45  0.188  4.78  1.374  34.90  MD\n1-3/4  1.75  44.45  0.250  6.35  1.250  31.75  MD\n1-7/8  1.875  47.63  0.120  3.05  1.635  41.53  MD\n1-7/8  1.875  47.63  0.250  6.35  1.375  34.93  MD\n2  2  50.80  0.065  1.65  1.870  47.50  MD\n2  2  50.80  0.095  2.41  1.810  45.97  MD\n2  2  50.80  0.120  3.05  1.760  44.70  MD\n2  2  50.80  0.188  4.78  1.624  41.25  MD\n2  2  50.80  0.250  6.35  1.500  38.10  MD\n2  2  50.80  0.375  9.53  1.250  31.75  MD\n2  2  50.80  0.500  12.70  1.000  25.40  MD\n2-1/4  2.25  57.15  0.120  3.05  2.010  51.05  MD\n2-1/4  2.25  57.15  0.250  6.35  1.750  44.45  MD\n2-1/4  2.25  57.15  0.500  12.70  1.250  31.75  MD\n2-3/8  2.375  60.33  0.188  4.78  1.999  50.77  MD\n2-1/2  2.5  63.50  0.120  3.05  2.260  57.40  MD\n2-1/2  2.5  63.50  0.250  6.35  2.000  50.80  MD\n2-1/2  2.5  63.50  0.375  9.53  1.750  44.45  MD\n2-1/2  2.5  63.50  0.500  12.70  1.500  38.10  MD\n2-5/8  2.625  66.68  0.120  3.05  2.385  60.58  MD\n2-3/4  2.75  69.85  0.120  3.05  2.510  63.75  MD\n2-3/4  2.75  69.85  0.375  9.53  2.000  50.80  MD\n3  3  76.20  0.065  1.65  2.870  72.90  MD\n3  3  76.20  0.120  3.05  2.760  70.10  MD\n3  3  76.20  0.188  4.78  2.624  66.65  MD\n3  3  76.20  0.250  6.35  2.500  63.50  MD\n3  3  76.20  0.375  9.53  2.250  57.15  MD\n3  3  76.20  0.500  12.70  2.000  50.80  MD\n3-1/2  3.5  88.90  0.120  3.05  3.260  82.80  MD\n3-1/2  3.5  88.90  0.188  4.78  3.124  79.35  MD\n3-1/2  3.5  88.90  0.250  6.35  3.000  76.20  MD\n4  4  101.60  0.065  1.65  3.870  98.30  MD\n4  4  101.60  0.125  3.18  3.750  95.25  MD\n4  4  101.60  0.188  4.78  3.624  92.05  MD\n4  4  101.60  0.250  6.35  3.500  88.90  MD\n4  4  101.60  0.375  9.53  3.250  82.55  MD\n4  4  101.60  0.500  12.70  3.000  76.20  MD\n5  5  127.00  0.125  3.18  4.750  120.65  MD\n5  5  127.00  0.188  4.78  4.624  117.45  MD\n5  5  127.00  0.250  6.35  4.500  114.30  MD\n6  6  152.40  0.125  3.18  5.750  146.05  MD\n6  6  152.40  0.250  6.35  5.500  139.70  MD\n6  6  152.40  0.375  9.53  5.250  133.35  MD\n6  6  152.40  0.500  12.70  5.000  127.00  MD\n8  8  203.20  0.250  6.35  7.500  190.50  MD\n8  8  203.20  0.375  9.53  7.250  184.15  MD\n8  8  203.20  0.500  12.70  7.000  177.80  MD\n10  10  254.00  0.250  6.35  9.500  241.30  MD\n10  10  254.00  0.375  9.53  9.250  234.95  MD\n10  10  254.00  0.500  12.70  9.000  228.60  MD\n12  12  304.80  0.250  6.35  11.500  292.10  MD\n12  12  304.80  0.375  9.53  11.250  285.75  MD\n12  12  304.80  0.500  12.70  11.000  279.40  MD\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Metals Depot: Steel round tube DOM (A513 Type 5): 117 sizes, OD, wall, ID (3/8 to 12 in OD) — web — Distributor listing; numbers only. Its weight column is not used — https://www.metalsdepot.com/steel-products/steel-round-tube-dom\n- Alcobra Metals: 1020 DOM carbon steel tubing ASTM A513: OD x wall (first page of 62, 1-1/4 and 1-1/2 in OD) — web — Distributor listing; numbers only — https://alcobrametals.com/product-category/carbon-steel/round-tube_134/1020-dom-carbon-steel-tubing-astm-a-513/\n- Online Metals: Carbon steel round tube A513: OD, wall, ID (first page of 139 results) — web — Distributor listing; numbers only — https://www.onlinemetals.com/en/buy/carbon-steel-round-tube-a513\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 23 parts): https://xemstudio.com/files/hardware/dom-mechanical-steel-round-tube-astm-a513/index.json\nAPI: https://xemstudio.com/api/geometry?object=dom-mechanical-steel-round-tube-astm-a513\n",
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  {
   "publisher": "Metals Depot",
   "title": "Steel round tube DOM (A513 Type 5): 117 sizes, OD, wall, ID (3/8 to 12 in OD)",
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   "title": "1020 DOM carbon steel tubing ASTM A513: OD x wall (first page of 62, 1-1/4 and 1-1/2 in OD)",
   "url": "https://alcobrametals.com/product-category/carbon-steel/round-tube_134/1020-dom-carbon-steel-tubing-astm-a-513/",
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   ],
   "license": "Distributor listing; numbers only",
   "license_verified": true,
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  {
   "publisher": "Online Metals",
   "title": "Carbon steel round tube A513: OD, wall, ID (first page of 139 results)",
   "url": "https://www.onlinemetals.com/en/buy/carbon-steel-round-tube-a513",
   "formats": [
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 ],
 "xem": {
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 "related": [
  "aisc-hss-round",
  "steel-pipe-asme-b36-10m-nps-1-8-to-24",
  "bar-stock-sizes-round-square-steel-aluminum",
  "steel-square-rectangular-tube-gauge-sizes",
  "aluminum-round-tube-and-pipe-6061-6063",
  "stainless-sanitary-tube-astm-a270-od-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 is the ID of 1-1/2 inch DOM tube with 0.120 wall?",
   "a": "1.260 in (32.00 mm) = 1.500 − 2 × 0.120; Metals Depot prints 1.260."
  },
  {
   "q": "What wall thicknesses does 1-3/4 inch DOM come in?",
   "a": "0.065, 0.095, 0.109, 0.120, 0.188 and 0.250 in in the Metals Depot list."
  },
  {
   "q": "What walls does 1-1/4 inch DOM come in?",
   "a": "Metals Depot lists 0.065, 0.095, 0.109, 0.120, 0.188 and 0.250 in; Alcobra Metals adds 0.134 in."
  }
 ],
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   "note": "DOM 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": "DOM 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": "DOM round tube 3/4 in OD × 0.120 in wall (listed by 2 distributors): OD Ø19.05, wall 3.048, bore Ø12.95, 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": "DOM round tube 1-1/4 in OD × 0.065 in wall (listed by 2 distributors): OD Ø31.75, wall 1.651, bore Ø28.45, 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": "DOM round tube 1-1/4 in OD × 0.095 in wall (listed by 2 distributors): OD Ø31.75, wall 2.413, bore Ø26.92, 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": "DOM round tube 1-1/4 in OD × 0.120 in wall (listed by 2 distributors): OD Ø31.75, wall 3.048, bore Ø25.65, 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": "DOM round tube 1-1/4 in OD × 0.188 in wall (listed by 2 distributors): OD Ø31.75, wall 4.775, bore Ø22.20, 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": "DOM 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": "DOM round tube 1-1/2 in OD × 0.083 in wall (listed by 2 distributors): OD Ø38.10, wall 2.108, bore Ø33.88, 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": "DOM round tube 1-1/2 in OD × 0.120 in wall (listed by 2 distributors): OD Ø38.10, wall 3.048, bore Ø32.00, 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": "DOM round tube 1-1/2 in OD × 0.188 in wall (listed by 2 distributors): OD Ø38.10, wall 4.775, bore Ø28.55, 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": "DOM round tube 1-1/2 in OD × 0.250 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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   "note": "DOM round tube 1-1/2 in OD × 0.375 in wall (listed by 2 distributors): OD Ø38.10, wall 9.525, 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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