{
 "designation": "200x100x4.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 17.9,
 "dimensions_mm": {
  "d": 200.0,
  "b": 100.0,
  "t": 4.0,
  "ro": 10.0
 },
 "properties": {
  "A": 2281.0404,
  "Ix": 11858805.1922,
  "Iy": 4073125.8974,
  "Zx": 118588.0519,
  "Zy": 81462.5179,
  "Sx": 146658.8035,
  "Sy": 91006.7824,
  "J": 9887634.7022,
  "C": 141661.444,
  "Iw": 0.0,
  "rx": 72.1031,
  "ry": 42.2569,
  "mass_calc": 17.9062,
  "surface": 0.5828,
  "surface_t": 32.5603
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.7448776776175335,
  "phiVv": 373248.0,
  "phiNs": 688133.9169317012,
  "phiNt": 872497.9609519743,
  "phiMsx": 58421682.61597925,
  "phiMsy": 20492519.372002643,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/200x100x4-0rhs/"
}