{
 "designation": "76.1x3.6CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 6.44,
 "dimensions_mm": {
  "do": 76.1,
  "t": 3.6
 },
 "properties": {
  "A": 819.9557,
  "Ix": 540064.8353,
  "Iy": 540064.8353,
  "Zx": 14193.5568,
  "Zy": 14193.5568,
  "Sx": 18938.052,
  "Sy": 18938.052,
  "J": 1080129.6706,
  "C": 28387.1135,
  "rx": 25.6642,
  "ry": 25.6642,
  "mass_calc": 6.4367,
  "surface": 0.2391,
  "surface_t": 37.1235
 },
 "design_AS4100": {
  "grade": "C250L0",
  "fy": 250,
  "fu": 320,
  "kf": 1.0,
  "phiVv": 66416.41028954182,
  "phiNs": 184490.0285820606,
  "phiNt": 184490.0285820606,
  "phiMsx": 4261061.700000001,
  "phiMsy": 4261061.700000001,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/76-1x3-6chs/"
}