{
 "designation": "150x50x4.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 11.6,
 "dimensions_mm": {
  "d": 150.0,
  "b": 50.0,
  "t": 4.0,
  "ro": 10.0
 },
 "properties": {
  "A": 1481.0404,
  "Ix": 3736048.6152,
  "Iy": 652970.3723,
  "Zx": 49813.9815,
  "Zy": 26118.8149,
  "Sx": 65432.7929,
  "Sy": 29780.7719,
  "J": 1925215.0044,
  "C": 48154.5441,
  "Iw": 0.0,
  "rx": 50.2253,
  "ry": 20.9973,
  "mass_calc": 11.6262,
  "surface": 0.3828,
  "surface_t": 33.0026
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.877151003412111,
  "phiVv": 276048.0,
  "phiNs": 526133.9169316943,
  "phiNt": 566497.9609519676,
  "phiMsx": 26500281.143941477,
  "phiMsy": 8883904.400163986,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/150x50x4-0rhs/"
}