{
 "designation": "250x150x6.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 35.6,
 "dimensions_mm": {
  "d": 250.0,
  "b": 150.0,
  "t": 6.0,
  "ro": 15.0
 },
 "properties": {
  "A": 4532.3409,
  "Ix": 38369241.2922,
  "Iy": 17507999.8557,
  "Zx": 306953.9303,
  "Zy": 233439.9981,
  "Sx": 374164.938,
  "Sy": 263947.8907,
  "J": 39001816.4739,
  "C": 395158.5564,
  "Iw": 0.0,
  "rx": 92.009,
  "ry": 62.1523,
  "mass_calc": 35.5789,
  "surface": 0.7742,
  "surface_t": 21.7485
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.8434860152997175,
  "phiVv": 694008.0,
  "phiNs": 1548301.3130962984,
  "phiNt": 1733620.4121419142,
  "phiMsx": 149201997.52979228,
  "phiMsy": 71060511.01449731,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/250x150x6-0rhs/"
}