{
 "designation": "100x50x3.5RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 7.53,
 "dimensions_mm": {
  "d": 100.0,
  "b": 50.0,
  "t": 3.5,
  "ro": 8.75
 },
 "properties": {
  "A": 958.9216,
  "Ix": 1181095.549,
  "Iy": 400196.1992,
  "Zx": 23621.911,
  "Zy": 16007.848,
  "Sx": 29937.2566,
  "Sy": 18476.7173,
  "J": 1013600.4383,
  "C": 28195.7274,
  "Iw": 0.0,
  "rx": 35.0955,
  "ry": 20.4289,
  "mass_calc": 7.5275,
  "surface": 0.285,
  "surface_t": 37.8455
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 158193.0,
  "phiNs": 388363.23672760616,
  "phiNt": 366787.5013538503,
  "phiMsx": 12124588.942482341,
  "phiMsy": 6918200.248880105,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/100x50x3-5rhs/"
}