{
 "designation": "300x200x8.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 59.1,
 "dimensions_mm": {
  "d": 300.0,
  "b": 200.0,
  "t": 8.0,
  "ro": 20.0
 },
 "properties": {
  "A": 7524.1617,
  "Ix": 93890911.176,
  "Iy": 50415881.0255,
  "Zx": 625939.4078,
  "Zy": 504158.8103,
  "Sx": 757062.3436,
  "Sy": 574454.2594,
  "J": 106265009.1403,
  "C": 838379.5971,
  "Iw": 0.0,
  "rx": 111.7076,
  "ry": 81.8568,
  "mass_calc": 59.0647,
  "surface": 0.9657,
  "surface_t": 16.3394
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.9032746305771951,
  "phiVv": 1104192.0,
  "phiNs": 2752535.6677267957,
  "phiNt": 2877991.843807889,
  "phiMsx": 302055249.1275529,
  "phiMsy": 171481695.89853594,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/300x200x8-0rhs/"
}