{
 "designation": "400x200x16.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 136.0,
 "dimensions_mm": {
  "d": 400.0,
  "b": 200.0,
  "t": 16.0,
  "ro": 40.0
 },
 "properties": {
  "A": 17296.6467,
  "Ix": 334521829.7408,
  "Iy": 112854281.9853,
  "Zx": 1672609.1487,
  "Zy": 1128542.8199,
  "Sx": 2138034.0754,
  "Sy": 1317169.4021,
  "J": 289715760.6172,
  "C": 1996804.1895,
  "Iw": 0.0,
  "rx": 139.0693,
  "ry": 80.7752,
  "mass_calc": 135.7787,
  "surface": 1.1313,
  "surface_t": 8.3185
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 2861568.0,
  "phiNs": 7005141.926715703,
  "phiNt": 6615967.375231498,
  "phiMsx": 865903800.5406736,
  "phiMsy": 526901023.5939558,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/400x200x16-0rhs/"
}