{
 "designation": "350x250x16.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 136.0,
 "dimensions_mm": {
  "d": 350.0,
  "b": 250.0,
  "t": 16.0,
  "ro": 40.0
 },
 "properties": {
  "A": 17296.6467,
  "Ix": 282753730.1782,
  "Iy": 167919956.3005,
  "Zx": 1615735.601,
  "Zy": 1343359.6504,
  "Sx": 1992817.9071,
  "Sy": 1582385.5705,
  "J": 355008885.1779,
  "C": 2233252.3619,
  "Iw": 0.0,
  "rx": 127.8566,
  "ry": 98.5304,
  "mass_calc": 135.7787,
  "surface": 1.1313,
  "surface_t": 8.3185
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 2472768.0,
  "phiNs": 7005141.926715718,
  "phiNt": 6615967.375231511,
  "phiMsx": 807091252.3727823,
  "phiMsy": 640866156.0369916,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/350x250x16-0rhs/"
}