{
 "designation": "75x75x3.5SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 7.53,
 "dimensions_mm": {
  "d": 75.0,
  "b": 75.0,
  "t": 3.5,
  "ro": 8.75
 },
 "properties": {
  "A": 958.9216,
  "Ix": 797220.6284,
  "Iy": 797220.6284,
  "Zx": 21259.2168,
  "Zy": 21259.2168,
  "Sx": 25300.737,
  "Sy": 25300.737,
  "J": 1317487.009,
  "C": 32521.6597,
  "Iw": 0.0,
  "rx": 28.8335,
  "ry": 28.8335,
  "mass_calc": 7.5275,
  "surface": 0.285,
  "surface_t": 37.8455
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 115668.0,
  "phiNs": 388363.23672760656,
  "phiNt": 366787.50135385065,
  "phiMsx": 10246798.48338745,
  "phiMsy": 10246798.48338732,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/75x75x3-5shs/"
}