{
 "designation": "100x50x1.6RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 3.64,
 "dimensions_mm": {
  "d": 100.0,
  "b": 50.0,
  "t": 1.6,
  "ro": 3.2
 },
 "properties": {
  "A": 463.1649,
  "Ix": 612925.1139,
  "Iy": 210785.4354,
  "Zx": 12258.5023,
  "Zy": 8431.4174,
  "Sx": 15040.4182,
  "Sy": 9333.2969,
  "J": 500822.1253,
  "C": 14529.1662,
  "Iw": 0.0,
  "rx": 36.3778,
  "ry": 21.333,
  "mass_calc": 3.6358,
  "surface": 0.2945,
  "surface_t": 80.9081
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.6607879622812634,
  "phiVv": 75271.68,
  "phiNs": 123951.77189228342,
  "phiNt": 177160.55531423763,
  "phiMsx": 5049983.580049534,
  "phiMsy": 1682766.9655783502,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/100x50x1-6rhs/"
}