{
 "designation": "300x200x6.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 45.0,
 "dimensions_mm": {
  "d": 300.0,
  "b": 200.0,
  "t": 6.0,
  "ro": 15.0
 },
 "properties": {
  "A": 5732.3409,
  "Ix": 73002401.2856,
  "Iy": 39310307.4822,
  "Zx": 486682.6752,
  "Zy": 393103.0748,
  "Sx": 583173.4617,
  "Sy": 442956.4144,
  "J": 81434317.2317,
  "C": 650753.136,
  "Iw": 0.0,
  "rx": 112.8503,
  "ry": 82.8108,
  "mass_calc": 44.9989,
  "surface": 0.9742,
  "surface_t": 21.6499
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.7525008549956776,
  "phiVv": 839808.0,
  "phiNs": 1747004.54274824,
  "phiNt": 2192620.412141937,
  "phiMsx": 187550423.76494232,
  "phiMsy": 98888084.71499147,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/300x200x6-0rhs/"
}