{
 "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": "aisc-hss-round",
 "name": "Round HSS tube (AISC): HSS 4.500x0.237, HSS 6.625x0.280, HSS 10.000x0.375 dimensions + STEP/STL",
 "kind": "standard",
 "category": "Hardware",
 "group": "Framing",
 "year": null,
 "question": "What are the OD and wall of HSS 4.500x0.237 round tube?",
 "tags": [
  "steel",
  "hss",
  "round tube",
  "tube",
  "aisc",
  "structural steel"
 ],
 "aliases": [
  "hss 4.500x0.237",
  "hss4.5x0.237",
  "hss 6.625x0.280",
  "hss 2.375x0.154",
  "hss 3.500x0.216",
  "hss 10x3/8",
  "round hss dimensions",
  "round hss sizes",
  "hss round tube dimensions",
  "round steel tube dimensions"
 ],
 "overall_mm": {
  "length": 101.6,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 13,
 "url": "https://xemstudio.com/objects/aisc-hss-round/",
 "sheet_txt": "https://xemstudio.com/objects/aisc-hss-round/sheet.txt",
 "sheet": {
  "basis": "AISC Shapes Database (v15.0 values): OD, tnom, tdes for every round HSS",
  "overall_mm": {
   "length": 101.6,
   "width": null,
   "height": null
  },
  "notes": [
   "Round HSS is cold-formed round tube with an outside diameter in inches (HSS6.625x0.280 is 6.625 in OD, the same OD as NPS 6 pipe). It is sold to ASTM A500 with the nominal wall tnom; AISC uses the design wall tdes = 0.93 x tnom in strength calculations.",
   "Files draw the OD and the nominal wall (inside diameter = OD - 2 tnom). The printed area uses the design wall, so the drawn area is about 7 % higher; the design-wall version of the same section matches the printed area within 2 %.",
   "AISC pipe sizes (STD, XS, XXS) share the pipe OD; use schedule-40-pipe for NPS pipe. This page lists the HSS round sizes only.",
   "Files are 4 in (101.6 mm) long extrusions along X; the section is in the YZ plane, axis at y = 0, z = OD/2.",
   "13 of the 128 sizes have files."
  ],
  "table": {
   "columns": [
    "shape",
    "lb/ft",
    "OD (in)",
    "tnom (in)",
    "tdes (in)",
    "OD (mm)",
    "tnom (mm)",
    "tdes (mm)",
    "ID (mm)"
   ],
   "rows": [
    [
     "HSS20.000x0.500",
     104,
     20,
     0.5,
     0.465,
     508,
     12.7,
     11.81,
     482.6
    ],
    [
     "HSS20.000x0.375",
     78.67,
     20,
     0.375,
     0.349,
     508,
     9.52,
     8.86,
     488.95
    ],
    [
     "HSS18.000x0.500",
     93.54,
     18,
     0.5,
     0.465,
     457.2,
     12.7,
     11.81,
     431.8
    ],
    [
     "HSS18.000x0.375",
     70.66,
     18,
     0.375,
     0.349,
     457.2,
     9.52,
     8.86,
     438.15
    ],
    [
     "HSS16.000x0.625",
     103,
     16,
     0.625,
     0.581,
     406.4,
     15.88,
     14.76,
     374.65
    ],
    [
     "HSS16.000x0.500",
     82.85,
     16,
     0.5,
     0.465,
     406.4,
     12.7,
     11.81,
     381
    ],
    [
     "HSS16.000x0.438",
     72.87,
     16,
     0.438,
     0.407,
     406.4,
     11.13,
     10.34,
     384.15
    ],
    [
     "HSS16.000x0.375",
     62.64,
     16,
     0.375,
     0.349,
     406.4,
     9.52,
     8.86,
     387.35
    ],
    [
     "HSS16.000x0.312",
     52.32,
     16,
     0.312,
     0.291,
     406.4,
     7.92,
     7.39,
     390.55
    ],
    [
     "HSS16.000x0.250",
     42.09,
     16,
     0.25,
     0.233,
     406.4,
     6.35,
     5.92,
     393.7
    ],
    [
     "HSS14.000x0.625",
     89.36,
     14,
     0.625,
     0.581,
     355.6,
     15.88,
     14.76,
     323.85
    ],
    [
     "HSS14.000x0.500",
     72.16,
     14,
     0.5,
     0.465,
     355.6,
     12.7,
     11.81,
     330.2
    ],
    [
     "HSS14.000x0.375",
     54.62,
     14,
     0.375,
     0.349,
     355.6,
     9.52,
     8.86,
     336.55
    ],
    [
     "HSS14.000x0.312",
     45.65,
     14,
     0.312,
     0.291,
     355.6,
     7.92,
     7.39,
     339.75
    ],
    [
     "HSS14.000x0.250",
     36.75,
     14,
     0.25,
     0.233,
     355.6,
     6.35,
     5.92,
     342.9
    ],
    [
     "HSS12.750x0.500",
     65.48,
     12.8,
     0.5,
     0.465,
     325.12,
     12.7,
     11.81,
     299.72
    ],
    [
     "HSS12.750x0.375",
     49.61,
     12.8,
     0.375,
     0.349,
     325.12,
     9.52,
     8.86,
     306.07
    ],
    [
     "HSS12.750x0.250",
     33.41,
     12.8,
     0.25,
     0.233,
     325.12,
     6.35,
     5.92,
     312.42
    ],
    [
     "HSS10.750x0.500",
     54.79,
     10.8,
     0.5,
     0.465,
     274.32,
     12.7,
     11.81,
     248.92
    ],
    [
     "HSS10.750x0.375",
     41.59,
     10.8,
     0.375,
     0.349,
     274.32,
     9.52,
     8.86,
     255.27
    ],
    [
     "HSS10.750x0.250",
     28.06,
     10.8,
     0.25,
     0.233,
     274.32,
     6.35,
     5.92,
     261.62
    ],
    [
     "HSS10.000x0.625",
     62.64,
     10,
     0.625,
     0.581,
     254,
     15.88,
     14.76,
     222.25
    ],
    [
     "HSS10.000x0.500",
     50.78,
     10,
     0.5,
     0.465,
     254,
     12.7,
     11.81,
     228.6
    ],
    [
     "HSS10.000x0.375",
     38.58,
     10,
     0.375,
     0.349,
     254,
     9.52,
     8.86,
     234.95
    ],
    [
     "HSS10.000x0.312",
     32.31,
     10,
     0.312,
     0.291,
     254,
     7.92,
     7.39,
     238.15
    ],
    [
     "HSS10.000x0.250",
     26.06,
     10,
     0.25,
     0.233,
     254,
     6.35,
     5.92,
     241.3
    ],
    [
     "HSS10.000x0.188",
     19.72,
     10,
     0.188,
     0.174,
     254,
     4.78,
     4.42,
     244.45
    ],
    [
     "HSS9.625x0.500",
     48.77,
     9.63,
     0.5,
     0.465,
     244.6,
     12.7,
     11.81,
     219.2
    ],
    [
     "HSS9.625x0.375",
     37.08,
     9.63,
     0.375,
     0.349,
     244.6,
     9.52,
     8.86,
     225.55
    ],
    [
     "HSS9.625x0.312",
     31.06,
     9.63,
     0.312,
     0.291,
     244.6,
     7.92,
     7.39,
     228.75
    ],
    [
     "HSS9.625x0.250",
     25.06,
     9.63,
     0.25,
     0.233,
     244.6,
     6.35,
     5.92,
     231.9
    ],
    [
     "HSS9.625x0.188",
     18.97,
     9.63,
     0.188,
     0.174,
     244.6,
     4.78,
     4.42,
     235.05
    ],
    [
     "HSS8.625x0.625",
     53.45,
     8.63,
     0.625,
     0.581,
     219.2,
     15.88,
     14.76,
     187.45
    ],
    [
     "HSS8.625x0.500",
     43.43,
     8.63,
     0.5,
     0.465,
     219.2,
     12.7,
     11.81,
     193.8
    ],
    [
     "HSS8.625x0.375",
     33.07,
     8.63,
     0.375,
     0.349,
     219.2,
     9.52,
     8.86,
     200.15
    ],
    [
     "HSS8.625x0.322",
     28.58,
     8.63,
     0.322,
     0.3,
     219.2,
     8.18,
     7.62,
     202.84
    ],
    [
     "HSS8.625x0.250",
     22.38,
     8.63,
     0.25,
     0.233,
     219.2,
     6.35,
     5.92,
     206.5
    ],
    [
     "HSS8.625x0.188",
     16.96,
     8.63,
     0.188,
     0.174,
     219.2,
     4.78,
     4.42,
     209.65
    ],
    [
     "HSS7.625x0.375",
     29.06,
     7.63,
     0.375,
     0.349,
     193.8,
     9.52,
     8.86,
     174.75
    ],
    [
     "HSS7.625x0.328",
     25.59,
     7.63,
     0.328,
     0.305,
     193.8,
     8.33,
     7.75,
     177.14
    ],
    [
     "HSS7.500x0.500",
     37.42,
     7.5,
     0.5,
     0.465,
     190.5,
     12.7,
     11.81,
     165.1
    ],
    [
     "HSS7.500x0.375",
     28.56,
     7.5,
     0.375,
     0.349,
     190.5,
     9.52,
     8.86,
     171.45
    ],
    [
     "HSS7.500x0.312",
     23.97,
     7.5,
     0.312,
     0.291,
     190.5,
     7.92,
     7.39,
     174.65
    ],
    [
     "HSS7.500x0.250",
     19.38,
     7.5,
     0.25,
     0.233,
     190.5,
     6.35,
     5.92,
     177.8
    ],
    [
     "HSS7.500x0.188",
     14.7,
     7.5,
     0.188,
     0.174,
     190.5,
     4.78,
     4.42,
     180.95
    ],
    [
     "HSS7.000x0.500",
     34.74,
     7,
     0.5,
     0.465,
     177.8,
     12.7,
     11.81,
     152.4
    ],
    [
     "HSS7.000x0.375",
     26.56,
     7,
     0.375,
     0.349,
     177.8,
     9.52,
     8.86,
     158.75
    ],
    [
     "HSS7.000x0.312",
     22.31,
     7,
     0.312,
     0.291,
     177.8,
     7.92,
     7.39,
     161.95
    ],
    [
     "HSS7.000x0.250",
     18.04,
     7,
     0.25,
     0.233,
     177.8,
     6.35,
     5.92,
     165.1
    ],
    [
     "HSS7.000x0.188",
     13.69,
     7,
     0.188,
     0.174,
     177.8,
     4.78,
     4.42,
     168.25
    ],
    [
     "HSS7.000x0.125",
     9.19,
     7,
     0.125,
     0.116,
     177.8,
     3.17,
     2.95,
     171.45
    ],
    [
     "HSS6.875x0.500",
     34.07,
     6.88,
     0.5,
     0.465,
     174.75,
     12.7,
     11.81,
     149.35
    ],
    [
     "HSS6.875x0.375",
     26.06,
     6.88,
     0.375,
     0.349,
     174.75,
     9.52,
     8.86,
     155.7
    ],
    [
     "HSS6.875x0.312",
     21.89,
     6.88,
     0.312,
     0.291,
     174.75,
     7.92,
     7.39,
     158.9
    ],
    [
     "HSS6.875x0.250",
     17.71,
     6.88,
     0.25,
     0.233,
     174.75,
     6.35,
     5.92,
     162.05
    ],
    [
     "HSS6.875x0.188",
     13.44,
     6.88,
     0.188,
     0.174,
     174.75,
     4.78,
     4.42,
     165.2
    ],
    [
     "HSS6.625x0.500",
     32.74,
     6.63,
     0.5,
     0.465,
     168.4,
     12.7,
     11.81,
     143
    ],
    [
     "HSS6.625x0.432",
     28.6,
     6.63,
     0.432,
     0.402,
     168.4,
     10.97,
     10.21,
     146.46
    ],
    [
     "HSS6.625x0.375",
     25.06,
     6.63,
     0.375,
     0.349,
     168.4,
     9.52,
     8.86,
     149.35
    ],
    [
     "HSS6.625x0.312",
     21.06,
     6.63,
     0.312,
     0.291,
     168.4,
     7.92,
     7.39,
     152.55
    ],
    [
     "HSS6.625x0.280",
     18.99,
     6.63,
     0.28,
     0.26,
     168.4,
     7.11,
     6.6,
     154.18
    ],
    [
     "HSS6.625x0.250",
     17.04,
     6.63,
     0.25,
     0.233,
     168.4,
     6.35,
     5.92,
     155.7
    ],
    [
     "HSS6.625x0.188",
     12.94,
     6.63,
     0.188,
     0.174,
     168.4,
     4.78,
     4.42,
     158.85
    ],
    [
     "HSS6.625x0.125",
     8.69,
     6.63,
     0.125,
     0.116,
     168.4,
     3.17,
     2.95,
     162.05
    ],
    [
     "HSS6.000x0.500",
     29.4,
     6,
     0.5,
     0.465,
     152.4,
     12.7,
     11.81,
     127
    ],
    [
     "HSS6.000x0.375",
     22.55,
     6,
     0.375,
     0.349,
     152.4,
     9.52,
     8.86,
     133.35
    ],
    [
     "HSS6.000x0.312",
     18.97,
     6,
     0.312,
     0.291,
     152.4,
     7.92,
     7.39,
     136.55
    ],
    [
     "HSS6.000x0.280",
     17.12,
     6,
     0.28,
     0.26,
     152.4,
     7.11,
     6.6,
     138.18
    ],
    [
     "HSS6.000x0.250",
     15.37,
     6,
     0.25,
     0.233,
     152.4,
     6.35,
     5.92,
     139.7
    ],
    [
     "HSS6.000x0.188",
     11.68,
     6,
     0.188,
     0.174,
     152.4,
     4.78,
     4.42,
     142.85
    ],
    [
     "HSS6.000x0.125",
     7.85,
     6,
     0.125,
     0.116,
     152.4,
     3.17,
     2.95,
     146.05
    ],
    [
     "HSS5.563x0.500",
     27.06,
     5.56,
     0.5,
     0.465,
     141.22,
     12.7,
     11.81,
     115.82
    ],
    [
     "HSS5.563x0.375",
     20.8,
     5.56,
     0.375,
     0.349,
     141.22,
     9.52,
     8.86,
     122.17
    ],
    [
     "HSS5.563x0.258",
     14.63,
     5.56,
     0.258,
     0.24,
     141.22,
     6.55,
     6.1,
     128.12
    ],
    [
     "HSS5.563x0.188",
     10.8,
     5.56,
     0.188,
     0.174,
     141.22,
     4.78,
     4.42,
     131.67
    ],
    [
     "HSS5.563x0.134",
     7.78,
     5.56,
     0.134,
     0.124,
     141.22,
     3.4,
     3.15,
     134.42
    ],
    [
     "HSS5.500x0.500",
     26.73,
     5.5,
     0.5,
     0.465,
     139.7,
     12.7,
     11.81,
     114.3
    ],
    [
     "HSS5.500x0.375",
     20.55,
     5.5,
     0.375,
     0.349,
     139.7,
     9.52,
     8.86,
     120.65
    ],
    [
     "HSS5.500x0.258",
     14.46,
     5.5,
     0.258,
     0.24,
     139.7,
     6.55,
     6.1,
     126.59
    ],
    [
     "HSS5.000x0.500",
     24.05,
     5,
     0.5,
     0.465,
     127,
     12.7,
     11.81,
     101.6
    ],
    [
     "HSS5.000x0.375",
     18.54,
     5,
     0.375,
     0.349,
     127,
     9.52,
     8.86,
     107.95
    ],
    [
     "HSS5.000x0.312",
     15.64,
     5,
     0.312,
     0.291,
     127,
     7.92,
     7.39,
     111.15
    ],
    [
     "HSS5.000x0.258",
     13.08,
     5,
     0.258,
     0.24,
     127,
     6.55,
     6.1,
     113.89
    ],
    [
     "HSS5.000x0.250",
     12.69,
     5,
     0.25,
     0.233,
     127,
     6.35,
     5.92,
     114.3
    ],
    [
     "HSS5.000x0.188",
     9.67,
     5,
     0.188,
     0.174,
     127,
     4.78,
     4.42,
     117.45
    ],
    [
     "HSS5.000x0.125",
     6.51,
     5,
     0.125,
     0.116,
     127,
     3.17,
     2.95,
     120.65
    ],
    [
     "HSS4.500x0.375",
     16.54,
     4.5,
     0.375,
     0.349,
     114.3,
     9.52,
     8.86,
     95.25
    ],
    [
     "HSS4.500x0.337",
     15,
     4.5,
     0.337,
     0.313,
     114.3,
     8.56,
     7.95,
     97.18
    ],
    [
     "HSS4.500x0.237",
     10.8,
     4.5,
     0.237,
     0.22,
     114.3,
     6.02,
     5.59,
     102.26
    ],
    [
     "HSS4.500x0.188",
     8.67,
     4.5,
     0.188,
     0.174,
     114.3,
     4.78,
     4.42,
     104.75
    ],
    [
     "HSS4.500x0.125",
     5.85,
     4.5,
     0.125,
     0.116,
     114.3,
     3.17,
     2.95,
     107.95
    ],
    [
     "HSS4.000x0.313",
     12.34,
     4,
     0.313,
     0.291,
     101.6,
     7.95,
     7.39,
     85.7
    ],
    [
     "HSS4.000x0.250",
     10,
     4,
     0.25,
     0.233,
     101.6,
     6.35,
     5.92,
     88.9
    ],
    [
     "HSS4.000x0.237",
     9.53,
     4,
     0.237,
     0.22,
     101.6,
     6.02,
     5.59,
     89.56
    ],
    [
     "HSS4.000x0.226",
     9.12,
     4,
     0.226,
     0.21,
     101.6,
     5.74,
     5.33,
     90.12
    ],
    [
     "HSS4.000x0.220",
     8.89,
     4,
     0.22,
     0.205,
     101.6,
     5.59,
     5.21,
     90.42
    ],
    [
     "HSS4.000x0.188",
     7.66,
     4,
     0.188,
     0.174,
     101.6,
     4.78,
     4.42,
     92.05
    ],
    [
     "HSS4.000x0.125",
     5.18,
     4,
     0.125,
     0.116,
     101.6,
     3.17,
     2.95,
     95.25
    ],
    [
     "HSS3.500x0.313",
     10.66,
     3.5,
     0.313,
     0.291,
     88.9,
     7.95,
     7.39,
     73
    ],
    [
     "HSS3.500x0.300",
     10.26,
     3.5,
     0.3,
     0.279,
     88.9,
     7.62,
     7.09,
     73.66
    ],
    [
     "HSS3.500x0.250",
     8.69,
     3.5,
     0.25,
     0.233,
     88.9,
     6.35,
     5.92,
     76.2
    ],
    [
     "HSS3.500x0.216",
     7.58,
     3.5,
     0.216,
     0.201,
     88.9,
     5.49,
     5.11,
     77.93
    ],
    [
     "HSS3.500x0.203",
     7.15,
     3.5,
     0.203,
     0.189,
     88.9,
     5.16,
     4.8,
     78.59
    ],
    [
     "HSS3.500x0.188",
     6.66,
     3.5,
     0.188,
     0.174,
     88.9,
     4.78,
     4.42,
     79.35
    ],
    [
     "HSS3.500x0.125",
     4.51,
     3.5,
     0.125,
     0.116,
     88.9,
     3.17,
     2.95,
     82.55
    ],
    [
     "HSS3.000x0.250",
     7.35,
     3,
     0.25,
     0.233,
     76.2,
     6.35,
     5.92,
     63.5
    ],
    [
     "HSS3.000x0.216",
     6.43,
     3,
     0.216,
     0.201,
     76.2,
     5.49,
     5.11,
     65.23
    ],
    [
     "HSS3.000x0.203",
     6.07,
     3,
     0.203,
     0.189,
     76.2,
     5.16,
     4.8,
     65.89
    ],
    [
     "HSS3.000x0.188",
     5.65,
     3,
     0.188,
     0.174,
     76.2,
     4.78,
     4.42,
     66.65
    ],
    [
     "HSS3.000x0.152",
     4.63,
     3,
     0.152,
     0.141,
     76.2,
     3.86,
     3.58,
     68.48
    ],
    [
     "HSS3.000x0.134",
     4.11,
     3,
     0.134,
     0.124,
     76.2,
     3.4,
     3.15,
     69.39
    ],
    [
     "HSS3.000x0.125",
     3.84,
     3,
     0.125,
     0.116,
     76.2,
     3.17,
     2.95,
     69.85
    ],
    [
     "HSS2.875x0.250",
     7.02,
     2.88,
     0.25,
     0.233,
     73.15,
     6.35,
     5.92,
     60.45
    ],
    [
     "HSS2.875x0.203",
     5.8,
     2.88,
     0.203,
     0.189,
     73.15,
     5.16,
     4.8,
     62.84
    ],
    [
     "HSS2.875x0.188",
     5.4,
     2.88,
     0.188,
     0.174,
     73.15,
     4.78,
     4.42,
     63.6
    ],
    [
     "HSS2.875x0.125",
     3.67,
     2.88,
     0.125,
     0.116,
     73.15,
     3.17,
     2.95,
     66.8
    ],
    [
     "HSS2.500x0.250",
     6.01,
     2.5,
     0.25,
     0.233,
     63.5,
     6.35,
     5.92,
     50.8
    ],
    [
     "HSS2.500x0.188",
     4.65,
     2.5,
     0.188,
     0.174,
     63.5,
     4.78,
     4.42,
     53.95
    ],
    [
     "HSS2.500x0.125",
     3.17,
     2.5,
     0.125,
     0.116,
     63.5,
     3.17,
     2.95,
     57.15
    ],
    [
     "HSS2.375x0.250",
     5.68,
     2.38,
     0.25,
     0.233,
     60.45,
     6.35,
     5.92,
     47.75
    ],
    [
     "HSS2.375x0.218",
     5.03,
     2.38,
     0.218,
     0.203,
     60.45,
     5.54,
     5.16,
     49.38
    ],
    [
     "HSS2.375x0.188",
     4.4,
     2.38,
     0.188,
     0.174,
     60.45,
     4.78,
     4.42,
     50.9
    ],
    [
     "HSS2.375x0.154",
     3.66,
     2.38,
     0.154,
     0.143,
     60.45,
     3.91,
     3.63,
     52.63
    ],
    [
     "HSS2.375x0.125",
     3.01,
     2.38,
     0.125,
     0.116,
     60.45,
     3.17,
     2.95,
     54.1
    ],
    [
     "HSS1.900x0.188",
     3.44,
     1.9,
     0.188,
     0.174,
     48.26,
     4.78,
     4.42,
     38.71
    ],
    [
     "HSS1.900x0.145",
     2.72,
     1.9,
     0.145,
     0.135,
     48.26,
     3.68,
     3.43,
     40.89
    ],
    [
     "HSS1.900x0.120",
     2.28,
     1.9,
     0.12,
     0.111,
     48.26,
     3.05,
     2.82,
     42.16
    ],
    [
     "HSS1.660x0.140",
     2.27,
     1.66,
     0.14,
     0.13,
     42.16,
     3.56,
     3.3,
     35.05
    ]
   ]
  }
 },
 "sheet_text": "Round HSS tube (AISC): HSS 4.500x0.237, HSS 6.625x0.280, HSS 10.000x0.375 dimensions + STEP/STL — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/aisc-hss-round/  (sheet CC BY 4.0)\nBasis: AISC Shapes Database (v15.0 values): OD, tnom, tdes for every round HSS\nCatalog version: 2026-10-20\n\nOverall (mm): length 101.6\n- Round HSS is cold-formed round tube with an outside diameter in inches (HSS6.625x0.280 is 6.625 in OD, the same OD as NPS 6 pipe). It is sold to ASTM A500 with the nominal wall tnom; AISC uses the design wall tdes = 0.93 x tnom in strength calculations.\n- Files draw the OD and the nominal wall (inside diameter = OD - 2 tnom). The printed area uses the design wall, so the drawn area is about 7 % higher; the design-wall version of the same section matches the printed area within 2 %.\n- AISC pipe sizes (STD, XS, XXS) share the pipe OD; use schedule-40-pipe for NPS pipe. This page lists the HSS round sizes only.\n- Files are 4 in (101.6 mm) long extrusions along X; the section is in the YZ plane, axis at y = 0, z = OD/2.\n- 13 of the 128 sizes have files.\n\nshape  lb/ft  OD (in)  tnom (in)  tdes (in)  OD (mm)  tnom (mm)  tdes (mm)  ID (mm)\nHSS20.000x0.500  104.0  20.0  0.5  0.465  508.0  12.7  11.81  482.6\nHSS20.000x0.375  78.67  20.0  0.375  0.349  508.0  9.52  8.86  488.95\nHSS18.000x0.500  93.54  18.0  0.5  0.465  457.2  12.7  11.81  431.8\nHSS18.000x0.375  70.66  18.0  0.375  0.349  457.2  9.52  8.86  438.15\nHSS16.000x0.625  103.0  16.0  0.625  0.581  406.4  15.88  14.76  374.65\nHSS16.000x0.500  82.85  16.0  0.5  0.465  406.4  12.7  11.81  381.0\nHSS16.000x0.438  72.87  16.0  0.438  0.407  406.4  11.13  10.34  384.15\nHSS16.000x0.375  62.64  16.0  0.375  0.349  406.4  9.52  8.86  387.35\nHSS16.000x0.312  52.32  16.0  0.312  0.291  406.4  7.92  7.39  390.55\nHSS16.000x0.250  42.09  16.0  0.25  0.233  406.4  6.35  5.92  393.7\nHSS14.000x0.625  89.36  14.0  0.625  0.581  355.6  15.88  14.76  323.85\nHSS14.000x0.500  72.16  14.0  0.5  0.465  355.6  12.7  11.81  330.2\nHSS14.000x0.375  54.62  14.0  0.375  0.349  355.6  9.52  8.86  336.55\nHSS14.000x0.312  45.65  14.0  0.312  0.291  355.6  7.92  7.39  339.75\nHSS14.000x0.250  36.75  14.0  0.25  0.233  355.6  6.35  5.92  342.9\nHSS12.750x0.500  65.48  12.8  0.5  0.465  325.12  12.7  11.81  299.72\nHSS12.750x0.375  49.61  12.8  0.375  0.349  325.12  9.52  8.86  306.07\nHSS12.750x0.250  33.41  12.8  0.25  0.233  325.12  6.35  5.92  312.42\nHSS10.750x0.500  54.79  10.8  0.5  0.465  274.32  12.7  11.81  248.92\nHSS10.750x0.375  41.59  10.8  0.375  0.349  274.32  9.52  8.86  255.27\nHSS10.750x0.250  28.06  10.8  0.25  0.233  274.32  6.35  5.92  261.62\nHSS10.000x0.625  62.64  10.0  0.625  0.581  254.0  15.88  14.76  222.25\nHSS10.000x0.500  50.78  10.0  0.5  0.465  254.0  12.7  11.81  228.6\nHSS10.000x0.375  38.58  10.0  0.375  0.349  254.0  9.52  8.86  234.95\nHSS10.000x0.312  32.31  10.0  0.312  0.291  254.0  7.92  7.39  238.15\nHSS10.000x0.250  26.06  10.0  0.25  0.233  254.0  6.35  5.92  241.3\nHSS10.000x0.188  19.72  10.0  0.188  0.174  254.0  4.78  4.42  244.45\nHSS9.625x0.500  48.77  9.63  0.5  0.465  244.6  12.7  11.81  219.2\nHSS9.625x0.375  37.08  9.63  0.375  0.349  244.6  9.52  8.86  225.55\nHSS9.625x0.312  31.06  9.63  0.312  0.291  244.6  7.92  7.39  228.75\nHSS9.625x0.250  25.06  9.63  0.25  0.233  244.6  6.35  5.92  231.9\nHSS9.625x0.188  18.97  9.63  0.188  0.174  244.6  4.78  4.42  235.05\nHSS8.625x0.625  53.45  8.63  0.625  0.581  219.2  15.88  14.76  187.45\nHSS8.625x0.500  43.43  8.63  0.5  0.465  219.2  12.7  11.81  193.8\nHSS8.625x0.375  33.07  8.63  0.375  0.349  219.2  9.52  8.86  200.15\nHSS8.625x0.322  28.58  8.63  0.322  0.3  219.2  8.18  7.62  202.84\nHSS8.625x0.250  22.38  8.63  0.25  0.233  219.2  6.35  5.92  206.5\nHSS8.625x0.188  16.96  8.63  0.188  0.174  219.2  4.78  4.42  209.65\nHSS7.625x0.375  29.06  7.63  0.375  0.349  193.8  9.52  8.86  174.75\nHSS7.625x0.328  25.59  7.63  0.328  0.305  193.8  8.33  7.75  177.14\nHSS7.500x0.500  37.42  7.5  0.5  0.465  190.5  12.7  11.81  165.1\nHSS7.500x0.375  28.56  7.5  0.375  0.349  190.5  9.52  8.86  171.45\nHSS7.500x0.312  23.97  7.5  0.312  0.291  190.5  7.92  7.39  174.65\nHSS7.500x0.250  19.38  7.5  0.25  0.233  190.5  6.35  5.92  177.8\nHSS7.500x0.188  14.7  7.5  0.188  0.174  190.5  4.78  4.42  180.95\nHSS7.000x0.500  34.74  7.0  0.5  0.465  177.8  12.7  11.81  152.4\nHSS7.000x0.375  26.56  7.0  0.375  0.349  177.8  9.52  8.86  158.75\nHSS7.000x0.312  22.31  7.0  0.312  0.291  177.8  7.92  7.39  161.95\nHSS7.000x0.250  18.04  7.0  0.25  0.233  177.8  6.35  5.92  165.1\nHSS7.000x0.188  13.69  7.0  0.188  0.174  177.8  4.78  4.42  168.25\nHSS7.000x0.125  9.19  7.0  0.125  0.116  177.8  3.17  2.95  171.45\nHSS6.875x0.500  34.07  6.88  0.5  0.465  174.75  12.7  11.81  149.35\nHSS6.875x0.375  26.06  6.88  0.375  0.349  174.75  9.52  8.86  155.7\nHSS6.875x0.312  21.89  6.88  0.312  0.291  174.75  7.92  7.39  158.9\nHSS6.875x0.250  17.71  6.88  0.25  0.233  174.75  6.35  5.92  162.05\nHSS6.875x0.188  13.44  6.88  0.188  0.174  174.75  4.78  4.42  165.2\nHSS6.625x0.500  32.74  6.63  0.5  0.465  168.4  12.7  11.81  143.0\nHSS6.625x0.432  28.6  6.63  0.432  0.402  168.4  10.97  10.21  146.46\nHSS6.625x0.375  25.06  6.63  0.375  0.349  168.4  9.52  8.86  149.35\nHSS6.625x0.312  21.06  6.63  0.312  0.291  168.4  7.92  7.39  152.55\nHSS6.625x0.280  18.99  6.63  0.28  0.26  168.4  7.11  6.6  154.18\nHSS6.625x0.250  17.04  6.63  0.25  0.233  168.4  6.35  5.92  155.7\nHSS6.625x0.188  12.94  6.63  0.188  0.174  168.4  4.78  4.42  158.85\nHSS6.625x0.125  8.69  6.63  0.125  0.116  168.4  3.17  2.95  162.05\nHSS6.000x0.500  29.4  6.0  0.5  0.465  152.4  12.7  11.81  127.0\nHSS6.000x0.375  22.55  6.0  0.375  0.349  152.4  9.52  8.86  133.35\nHSS6.000x0.312  18.97  6.0  0.312  0.291  152.4  7.92  7.39  136.55\nHSS6.000x0.280  17.12  6.0  0.28  0.26  152.4  7.11  6.6  138.18\nHSS6.000x0.250  15.37  6.0  0.25  0.233  152.4  6.35  5.92  139.7\nHSS6.000x0.188  11.68  6.0  0.188  0.174  152.4  4.78  4.42  142.85\nHSS6.000x0.125  7.85  6.0  0.125  0.116  152.4  3.17  2.95  146.05\nHSS5.563x0.500  27.06  5.56  0.5  0.465  141.22  12.7  11.81  115.82\nHSS5.563x0.375  20.8  5.56  0.375  0.349  141.22  9.52  8.86  122.17\nHSS5.563x0.258  14.63  5.56  0.258  0.24  141.22  6.55  6.1  128.12\nHSS5.563x0.188  10.8  5.56  0.188  0.174  141.22  4.78  4.42  131.67\nHSS5.563x0.134  7.78  5.56  0.134  0.124  141.22  3.4  3.15  134.42\nHSS5.500x0.500  26.73  5.5  0.5  0.465  139.7  12.7  11.81  114.3\nHSS5.500x0.375  20.55  5.5  0.375  0.349  139.7  9.52  8.86  120.65\nHSS5.500x0.258  14.46  5.5  0.258  0.24  139.7  6.55  6.1  126.59\nHSS5.000x0.500  24.05  5.0  0.5  0.465  127.0  12.7  11.81  101.6\nHSS5.000x0.375  18.54  5.0  0.375  0.349  127.0  9.52  8.86  107.95\nHSS5.000x0.312  15.64  5.0  0.312  0.291  127.0  7.92  7.39  111.15\nHSS5.000x0.258  13.08  5.0  0.258  0.24  127.0  6.55  6.1  113.89\nHSS5.000x0.250  12.69  5.0  0.25  0.233  127.0  6.35  5.92  114.3\nHSS5.000x0.188  9.67  5.0  0.188  0.174  127.0  4.78  4.42  117.45\nHSS5.000x0.125  6.51  5.0  0.125  0.116  127.0  3.17  2.95  120.65\nHSS4.500x0.375  16.54  4.5  0.375  0.349  114.3  9.52  8.86  95.25\nHSS4.500x0.337  15.0  4.5  0.337  0.313  114.3  8.56  7.95  97.18\nHSS4.500x0.237  10.8  4.5  0.237  0.22  114.3  6.02  5.59  102.26\nHSS4.500x0.188  8.67  4.5  0.188  0.174  114.3  4.78  4.42  104.75\nHSS4.500x0.125  5.85  4.5  0.125  0.116  114.3  3.17  2.95  107.95\nHSS4.000x0.313  12.34  4.0  0.313  0.291  101.6  7.95  7.39  85.7\nHSS4.000x0.250  10.0  4.0  0.25  0.233  101.6  6.35  5.92  88.9\nHSS4.000x0.237  9.53  4.0  0.237  0.22  101.6  6.02  5.59  89.56\nHSS4.000x0.226  9.12  4.0  0.226  0.21  101.6  5.74  5.33  90.12\nHSS4.000x0.220  8.89  4.0  0.22  0.205  101.6  5.59  5.21  90.42\nHSS4.000x0.188  7.66  4.0  0.188  0.174  101.6  4.78  4.42  92.05\nHSS4.000x0.125  5.18  4.0  0.125  0.116  101.6  3.17  2.95  95.25\nHSS3.500x0.313  10.66  3.5  0.313  0.291  88.9  7.95  7.39  73.0\nHSS3.500x0.300  10.26  3.5  0.3  0.279  88.9  7.62  7.09  73.66\nHSS3.500x0.250  8.69  3.5  0.25  0.233  88.9  6.35  5.92  76.2\nHSS3.500x0.216  7.58  3.5  0.216  0.201  88.9  5.49  5.11  77.93\nHSS3.500x0.203  7.15  3.5  0.203  0.189  88.9  5.16  4.8  78.59\nHSS3.500x0.188  6.66  3.5  0.188  0.174  88.9  4.78  4.42  79.35\nHSS3.500x0.125  4.51  3.5  0.125  0.116  88.9  3.17  2.95  82.55\nHSS3.000x0.250  7.35  3.0  0.25  0.233  76.2  6.35  5.92  63.5\nHSS3.000x0.216  6.43  3.0  0.216  0.201  76.2  5.49  5.11  65.23\nHSS3.000x0.203  6.07  3.0  0.203  0.189  76.2  5.16  4.8  65.89\nHSS3.000x0.188  5.65  3.0  0.188  0.174  76.2  4.78  4.42  66.65\nHSS3.000x0.152  4.63  3.0  0.152  0.141  76.2  3.86  3.58  68.48\nHSS3.000x0.134  4.11  3.0  0.134  0.124  76.2  3.4  3.15  69.39\nHSS3.000x0.125  3.84  3.0  0.125  0.116  76.2  3.17  2.95  69.85\nHSS2.875x0.250  7.02  2.88  0.25  0.233  73.15  6.35  5.92  60.45\nHSS2.875x0.203  5.8  2.88  0.203  0.189  73.15  5.16  4.8  62.84\nHSS2.875x0.188  5.4  2.88  0.188  0.174  73.15  4.78  4.42  63.6\nHSS2.875x0.125  3.67  2.88  0.125  0.116  73.15  3.17  2.95  66.8\nHSS2.500x0.250  6.01  2.5  0.25  0.233  63.5  6.35  5.92  50.8\nHSS2.500x0.188  4.65  2.5  0.188  0.174  63.5  4.78  4.42  53.95\nHSS2.500x0.125  3.17  2.5  0.125  0.116  63.5  3.17  2.95  57.15\nHSS2.375x0.250  5.68  2.38  0.25  0.233  60.45  6.35  5.92  47.75\nHSS2.375x0.218  5.03  2.38  0.218  0.203  60.45  5.54  5.16  49.38\nHSS2.375x0.188  4.4  2.38  0.188  0.174  60.45  4.78  4.42  50.9\nHSS2.375x0.154  3.66  2.38  0.154  0.143  60.45  3.91  3.63  52.63\nHSS2.375x0.125  3.01  2.38  0.125  0.116  60.45  3.17  2.95  54.1\nHSS1.900x0.188  3.44  1.9  0.188  0.174  48.26  4.78  4.42  38.71\nHSS1.900x0.145  2.72  1.9  0.145  0.135  48.26  3.68  3.43  40.89\nHSS1.900x0.120  2.28  1.9  0.12  0.111  48.26  3.05  2.82  42.16\nHSS1.660x0.140  2.27  1.66  0.14  0.13  42.16  3.56  3.3  35.05\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- AISC (values via the ambaker1/aisc-csv extract, MIT): AISC Shapes Database v15.0 (W, S, C, MC, L, HSS): d, bf, tw, tf, k, t, HSS Ht, B, OD, tnom, tdes, A, weight — web — AISC publishes the database free of charge; dimensions are facts. aisc.org itself was not reachable from the build box — https://github.com/ambaker1/aisc-csv\n- AISC: Shapes Database (free download, v16.0 on aisc.org) - the values here are the v15.0 release; check the current release before relying on a size — web — Publisher's page; dimensions are facts — https://www.aisc.org/publications/steel-construction-manual-resources/\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 13 parts): https://xemstudio.com/files/hardware/aisc-hss-round/index.json\nAPI: https://xemstudio.com/api/geometry?object=aisc-hss-round\n",
 "sources": [
  {
   "publisher": "AISC (values via the ambaker1/aisc-csv extract, MIT)",
   "title": "AISC Shapes Database v15.0 (W, S, C, MC, L, HSS): d, bf, tw, tf, k, t, HSS Ht, B, OD, tnom, tdes, A, weight",
   "url": "https://github.com/ambaker1/aisc-csv",
   "formats": [
    "web"
   ],
   "license": "AISC publishes the database free of charge; dimensions are facts. aisc.org itself was not reachable from the build box",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "AISC",
   "title": "Shapes Database (free download, v16.0 on aisc.org) - the values here are the v15.0 release; check the current release before relying on a size",
   "url": "https://www.aisc.org/publications/steel-construction-manual-resources/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "schedule-40-pipe",
  "aisc-hss-rectangular-square",
  "emt-conduit",
  "aisc-w-shapes"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. 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.",
 "mating": [],
 "faq": [
  {
   "q": "What is round HSS?",
   "a": "Cold-formed round structural tube sized by outside diameter in inches and a nominal wall."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "hss-round-1-9x0-145-4in",
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-1-9x0-145-4in.stl",
   "note": "Round HSS 1.9 in OD (48.26 mm) x 0.145 in nominal wall (3.68 mm), 4 in long"
  },
  {
   "file": "hss-round-2-38x0-154-4in",
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-2-38x0-154-4in.stl",
   "note": "Round HSS 2.38 in OD (60.45 mm) x 0.154 in nominal wall (3.91 mm), 4 in long"
  },
  {
   "file": "hss-round-2-88x0-203-4in",
   "formats": [
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   "price_usd": 0,
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-2-88x0-203-4in.stl",
   "note": "Round HSS 2.88 in OD (73.15 mm) x 0.203 in nominal wall (5.16 mm), 4 in long"
  },
  {
   "file": "hss-round-3-5x0-216-4in",
   "formats": [
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   "license": "CC BY 4.0 (Xem Studio)",
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-3-5x0-216-4in.stl",
   "note": "Round HSS 3.5 in OD (88.90 mm) x 0.216 in nominal wall (5.49 mm), 4 in long"
  },
  {
   "file": "hss-round-4x0-226-4in",
   "formats": [
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-4x0-226-4in.stl",
   "note": "Round HSS 4 in OD (101.60 mm) x 0.226 in nominal wall (5.74 mm), 4 in long"
  },
  {
   "file": "hss-round-4-5x0-237-4in",
   "formats": [
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-4-5x0-237-4in.stl",
   "note": "Round HSS 4.5 in OD (114.30 mm) x 0.237 in nominal wall (6.02 mm), 4 in long"
  },
  {
   "file": "hss-round-5x0-25-4in",
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-5x0-25-4in.stl",
   "note": "Round HSS 5 in OD (127.00 mm) x 0.25 in nominal wall (6.35 mm), 4 in long"
  },
  {
   "file": "hss-round-5-56x0-258-4in",
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-5-56x0-258-4in.stl",
   "note": "Round HSS 5.56 in OD (141.22 mm) x 0.258 in nominal wall (6.55 mm), 4 in long"
  },
  {
   "file": "hss-round-6-63x0-28-4in",
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-6-63x0-28-4in.stl",
   "note": "Round HSS 6.63 in OD (168.40 mm) x 0.28 in nominal wall (7.11 mm), 4 in long"
  },
  {
   "file": "hss-round-8-63x0-322-4in",
   "formats": [
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-8-63x0-322-4in.stl",
   "note": "Round HSS 8.63 in OD (219.20 mm) x 0.322 in nominal wall (8.18 mm), 4 in long"
  },
  {
   "file": "hss-round-10x0-375-4in",
   "formats": [
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-10x0-375-4in.stl",
   "note": "Round HSS 10 in OD (254.00 mm) x 0.375 in nominal wall (9.52 mm), 4 in long"
  },
  {
   "file": "hss-round-12-8x0-375-4in",
   "formats": [
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-12-8x0-375-4in.stl",
   "note": "Round HSS 12.8 in OD (325.12 mm) x 0.375 in nominal wall (9.52 mm), 4 in long"
  },
  {
   "file": "hss-round-16x0-375-4in",
   "formats": [
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   "stl": "https://xemstudio.com/files/hardware/aisc-hss-round/hss-round-16x0-375-4in.stl",
   "note": "Round HSS 16 in OD (406.40 mm) x 0.375 in nominal wall (9.52 mm), 4 in long"
  }
 ],
 "markdown": "https://xemstudio.com/objects/aisc-hss-round/index.md"
}