{
 "designation": "75x25x1.6RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 2.38,
 "dimensions_mm": {
  "d": 75.0,
  "b": 25.0,
  "t": 1.6,
  "ro": 3.2
 },
 "properties": {
  "A": 303.1649,
  "Ix": 197349.2334,
  "Iy": 34687.5864,
  "Zx": 5262.6462,
  "Zy": 2775.0069,
  "Sx": 6814.8576,
  "Sy": 3107.7363,
  "J": 99327.5685,
  "C": 5047.8917,
  "Iw": 0.0,
  "rx": 25.514,
  "ry": 10.6966,
  "mass_calc": 2.3798,
  "surface": 0.1945,
  "surface_t": 81.7251
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.7456463286882485,
  "phiVv": 55831.68,
  "phiNs": 91551.77189228224,
  "phiNt": 115960.55531423648,
  "phiMsx": 2760017.3162282803,
  "phiMsy": 746686.6210495482,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/75x25x1-6rhs/"
}