{
 "designation": "406.4x9.5CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 93.0,
 "dimensions_mm": {
  "do": 406.4,
  "t": 9.5
 },
 "properties": {
  "A": 11845.5322,
  "Ix": 233386390.4795,
  "Iy": 233386390.4795,
  "Zx": 1148555.0713,
  "Zy": 1148555.0713,
  "Sx": 1496817.0867,
  "Sy": 1496817.0867,
  "J": 466772780.959,
  "C": 2297110.1425,
  "rx": 140.3655,
  "ry": 140.3655,
  "mass_calc": 92.9874,
  "surface": 1.2767,
  "surface_t": 13.7284
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 1343283.3492112067,
  "phiNs": 3731342.636697796,
  "phiNt": 3731342.636697796,
  "phiMsx": 455997156.4731205,
  "phiMsy": 455997156.4731205,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/406-4x9-5chs/"
}