{
 "designation": "100x50x5.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 10.3,
 "dimensions_mm": {
  "d": 100.0,
  "b": 50.0,
  "t": 5.0,
  "ro": 12.5
 },
 "properties": {
  "A": 1314.1257,
  "Ix": 1527671.6087,
  "Iy": 511072.5841,
  "Zx": 30553.4322,
  "Zy": 20442.9034,
  "Sx": 39758.5512,
  "Sy": 24405.4098,
  "J": 1346334.0174,
  "C": 36508.6691,
  "Iw": 0.0,
  "rx": 34.0955,
  "ry": 19.7207,
  "mass_calc": 10.3159,
  "surface": 0.2785,
  "surface_t": 27.0425
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 218700.0,
  "phiNs": 532220.8912808301,
  "phiNt": 502653.0639874507,
  "phiMsx": 16102213.240724023,
  "phiMsy": 9884190.958703185,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/100x50x5-0rhs/"
}