{
 "designation": "300x300x8.0SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 71.6,
 "dimensions_mm": {
  "d": 300.0,
  "b": 300.0,
  "t": 8.0,
  "ro": 20.0
 },
 "properties": {
  "A": 9124.1617,
  "Ix": 128005044.5093,
  "Iy": 128005044.5093,
  "Zx": 853366.9634,
  "Zy": 853366.9634,
  "Sx": 990662.3436,
  "Sy": 990662.3436,
  "J": 203118356.6499,
  "C": 1292669.0994,
  "Iw": 0.0,
  "rx": 118.4451,
  "ry": 118.4451,
  "mass_calc": 71.6247,
  "surface": 1.1657,
  "surface_t": 16.2802
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.8404725072455157,
  "phiVv": 1104192.0,
  "phiNs": 3105785.8537746654,
  "phiNt": 3489991.843807903,
  "phiMsx": 290259360.9995815,
  "phiMsy": 290259360.9995897,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/300x300x8-0shs/"
}