{
 "designation": "125x75x2.5RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 7.53,
 "dimensions_mm": {
  "d": 125.0,
  "b": 75.0,
  "t": 2.5,
  "ro": 5.0
 },
 "properties": {
  "A": 958.8986,
  "Ix": 2065086.6046,
  "Iy": 942461.8462,
  "Zx": 33041.3857,
  "Zy": 25132.3159,
  "Sx": 39969.9772,
  "Sy": 28185.0132,
  "J": 2052835.4231,
  "C": 42112.5586,
  "Iw": 0.0,
  "rx": 46.4069,
  "ry": 31.3506,
  "mass_calc": 7.5274,
  "surface": 0.3914,
  "surface_t": 51.9808
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.7629342528519831,
  "phiVv": 145800.0,
  "phiNs": 296288.5055963949,
  "phiNt": 366778.69949765026,
  "phiMsx": 14064777.231563585,
  "phiMsy": 6322226.263052932,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/125x75x2-5rhs/"
}