{
 "designation": "400x400x16.0SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 186.0,
 "dimensions_mm": {
  "d": 400.0,
  "b": 400.0,
  "t": 16.0,
  "ro": 40.0
 },
 "properties": {
  "A": 23696.6467,
  "Ix": 570587963.0741,
  "Iy": 570587963.0741,
  "Zx": 2852939.8154,
  "Zy": 2852939.8154,
  "Sx": 3366834.0754,
  "Sy": 3366834.0754,
  "J": 930429041.409,
  "C": 4349120.4089,
  "Iw": 0.0,
  "rx": 155.1736,
  "ry": 155.1736,
  "mass_calc": 186.0187,
  "surface": 1.5313,
  "surface_t": 8.2329
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 2861568.0,
  "phiNs": 9597141.926715741,
  "phiNt": 9063967.375231534,
  "phiMsx": 1345715939.9679058,
  "phiMsy": 1345715939.9679043,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/400x400x16-0shs/"
}