{
 "designation": "219.1x6.4CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 33.6,
 "dimensions_mm": {
  "do": 219.1,
  "t": 6.4
 },
 "properties": {
  "A": 4276.5872,
  "Ix": 24206686.6109,
  "Iy": 24206686.6109,
  "Zx": 220964.734,
  "Zy": 220964.734,
  "Sx": 289631.6373,
  "Sy": 289631.6373,
  "J": 48413373.2218,
  "C": 441929.468,
  "rx": 75.2348,
  "ry": 75.2348,
  "mass_calc": 33.5712,
  "surface": 0.6883,
  "surface_t": 20.4858
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 484964.9938640864,
  "phiNs": 1347124.9829557955,
  "phiNt": 1347124.9829557955,
  "phiMsx": 91233965.76000005,
  "phiMsy": 91233965.76000005,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/219-1x6-4chs/"
}