{
 "designation": "350x350x12.5SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 128.0,
 "dimensions_mm": {
  "d": 350.0,
  "b": 350.0,
  "t": 12.5,
  "ro": 31.25
 },
 "properties": {
  "A": 16338.2854,
  "Ix": 304667861.466,
  "Iy": 304667861.466,
  "Zx": 1740959.2084,
  "Zy": 1740959.2084,
  "Sx": 2043610.3806,
  "Sy": 2043610.3806,
  "J": 492508045.7268,
  "C": 2648315.6517,
  "Iw": 0.0,
  "rx": 136.5558,
  "ry": 136.5558,
  "mass_calc": 128.2555,
  "surface": 1.3463,
  "surface_t": 10.5183
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1974375.0,
  "phiNs": 6617005.570505215,
  "phiNt": 6249394.149921592,
  "phiMsx": 767813616.3600906,
  "phiMsy": 767813616.3600904,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/350x350x12-5shs/"
}