{
 "designation": "139.7x3.5CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 11.8,
 "dimensions_mm": {
  "do": 139.7,
  "t": 3.5
 },
 "properties": {
  "A": 1497.5972,
  "Ix": 3474929.1127,
  "Iy": 3474929.1127,
  "Zx": 49748.4483,
  "Zy": 49748.4483,
  "Sx": 64940.8317,
  "Sy": 64940.8317,
  "J": 6949858.2255,
  "C": 99496.8966,
  "rx": 48.1699,
  "ry": 48.1699,
  "mass_calc": 11.7561,
  "surface": 0.4389,
  "surface_t": 37.1933
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 169827.52451737318,
  "phiNs": 471743.12365936994,
  "phiNt": 471743.12365936994,
  "phiMsx": 20054371.510735862,
  "phiMsy": 20054371.510735862,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/139-7x3-5chs/"
}