{
 "designation": "300x200x10.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 72.7,
 "dimensions_mm": {
  "d": 300.0,
  "b": 200.0,
  "t": 10.0,
  "ro": 25.0
 },
 "properties": {
  "A": 9256.5026,
  "Ix": 113124176.6173,
  "Iy": 60576079.0731,
  "Zx": 754161.1774,
  "Zy": 605760.7907,
  "Sx": 920893.5412,
  "Sy": 698068.4097,
  "J": 129871344.2678,
  "C": 1012185.5667,
  "Iw": 0.0,
  "rx": 110.5489,
  "ry": 80.896,
  "mass_calc": 72.6635,
  "surface": 0.9571,
  "surface_t": 13.1647
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1360800.0,
  "phiNs": 3748883.5651233355,
  "phiNt": 3540612.255949817,
  "phiMsx": 372961884.1819594,
  "phiMsy": 254432745.14892483,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/300x200x10-0rhs/"
}