{
 "designation": "323.9x9.5CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 73.7,
 "dimensions_mm": {
  "do": 323.9,
  "t": 9.5
 },
 "properties": {
  "A": 9383.3089,
  "Ix": 116045270.024,
  "Iy": 116045270.024,
  "Zx": 716549.9847,
  "Zy": 716549.9847,
  "Sx": 939335.7117,
  "Sy": 939335.7117,
  "J": 232090540.048,
  "C": 1433099.9694,
  "rx": 111.2079,
  "ry": 111.2079,
  "mass_calc": 73.659,
  "surface": 1.0176,
  "surface_t": 13.8068
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 1064067.2335399434,
  "phiNs": 2955742.315388731,
  "phiNt": 2955742.315388731,
  "phiMsx": 295890749.17499995,
  "phiMsy": 295890749.17499995,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/323-9x9-5chs/"
}