{
 "designation": "100x50x2.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 4.5,
 "dimensions_mm": {
  "d": 100.0,
  "b": 50.0,
  "t": 2.0,
  "ro": 4.0
 },
 "properties": {
  "A": 573.6951,
  "Ix": 749806.1399,
  "Iy": 256734.1485,
  "Zx": 14996.1228,
  "Zy": 10269.3659,
  "Sx": 18504.6283,
  "Sy": 11462.2513,
  "J": 615860.6759,
  "C": 17725.7645,
  "Iw": 0.0,
  "rx": 36.1521,
  "ry": 21.1544,
  "mass_calc": 4.5035,
  "surface": 0.2931,
  "surface_t": 65.1405
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.7464052111454785,
  "phiVv": 93312.0,
  "phiNs": 173424.6435816906,
  "phiNt": 219438.36767849413,
  "phiMsx": 7372494.625328632,
  "phiMsy": 2583337.536691971,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/100x50x2-0rhs/"
}