{
 "designation": "323.9x12.7CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 97.5,
 "dimensions_mm": {
  "do": 323.9,
  "t": 12.7
 },
 "properties": {
  "A": 12416.3281,
  "Ix": 150558424.0454,
  "Iy": 150558424.0454,
  "Zx": 929659.92,
  "Zy": 929659.92,
  "Sx": 1230619.8823,
  "Sy": 1230619.8823,
  "J": 301116848.0908,
  "C": 1859319.84,
  "rx": 110.1174,
  "ry": 110.1174,
  "mass_calc": 97.4682,
  "surface": 1.0176,
  "surface_t": 10.4365
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 1408011.6121219697,
  "phiNs": 3911143.367005471,
  "phiNt": 3911143.367005471,
  "phiMsx": 387645262.9349996,
  "phiMsy": 387645262.9349996,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/323-9x12-7chs/"
}