{
 "designation": "75x50x6.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 9.67,
 "dimensions_mm": {
  "d": 75.0,
  "b": 50.0,
  "t": 6.0,
  "ro": 15.0
 },
 "properties": {
  "A": 1232.3409,
  "Ix": 799837.51,
  "Iy": 421363.1531,
  "Zx": 21329.0003,
  "Zy": 16854.5261,
  "Sx": 28060.1052,
  "Sy": 21130.8434,
  "J": 1005879.4258,
  "C": 29276.0278,
  "Iw": 0.0,
  "rx": 25.4762,
  "ry": 18.4911,
  "mass_calc": 9.6739,
  "surface": 0.2242,
  "surface_t": 23.1898
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 183708.0,
  "phiNs": 499098.0834443954,
  "phiNt": 471370.412141929,
  "phiMsx": 11364342.602472141,
  "phiMsy": 8557991.559417237,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/75x50x6-0rhs/"
}