{
 "designation": "273.1x12.7CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 81.6,
 "dimensions_mm": {
  "do": 273.1,
  "t": 12.7
 },
 "properties": {
  "A": 10389.4982,
  "Ix": 88271060.0827,
  "Iy": 88271060.0827,
  "Zx": 646437.6425,
  "Zy": 646437.6425,
  "Sx": 861846.4263,
  "Sy": 861846.4263,
  "J": 176542120.1654,
  "C": 1292875.285,
  "rx": 92.1747,
  "ry": 92.1747,
  "mass_calc": 81.5576,
  "surface": 0.858,
  "surface_t": 10.5143
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 1178169.099603346,
  "phiNs": 3272691.943342628,
  "phiNt": 3272691.943342628,
  "phiMsx": 271481624.2950002,
  "phiMsy": 271481624.2950002,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/273-1x12-7chs/"
}