{
 "designation": "400x200x8.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 71.6,
 "dimensions_mm": {
  "d": 400.0,
  "b": 200.0,
  "t": 8.0,
  "ro": 20.0
 },
 "properties": {
  "A": 9124.1617,
  "Ix": 189740883.0756,
  "Iy": 65170014.3588,
  "Zx": 948704.4154,
  "Zy": 651700.1436,
  "Sx": 1173270.4277,
  "Sy": 728054.2594,
  "J": 158202155.2347,
  "C": 1133291.5518,
  "Iw": 0.0,
  "rx": 144.2062,
  "ry": 84.5138,
  "mass_calc": 71.6247,
  "surface": 1.1657,
  "surface_t": 16.2802
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.7448776776175335,
  "phiVv": 1492992.0,
  "phiNs": 2752535.667726805,
  "phiNt": 3489991.843807897,
  "phiMsx": 467373460.927834,
  "phiMsy": 163940154.97602114,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/400x200x8-0rhs/"
}