{
 "designation": "75x50x2.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 3.72,
 "dimensions_mm": {
  "d": 75.0,
  "b": 50.0,
  "t": 2.0,
  "ro": 4.0
 },
 "properties": {
  "A": 473.6951,
  "Ix": 371621.9548,
  "Iy": 199100.8151,
  "Zx": 9909.9188,
  "Zy": 7964.0326,
  "Sx": 11958.4398,
  "Sy": 9062.2513,
  "J": 413515.9437,
  "C": 13117.8432,
  "Iw": 0.0,
  "rx": 28.0092,
  "ry": 20.5016,
  "mass_calc": 3.7185,
  "surface": 0.2431,
  "surface_t": 65.3581
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.9039760292510565,
  "phiVv": 69012.0,
  "phiNs": 173424.64358169094,
  "phiNt": 181188.3676784945,
  "phiMsx": 4772005.802579187,
  "phiMsy": 2708840.5274060243,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/75x50x2-0rhs/"
}