{
 "designation": "406.4x12.7CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 123.0,
 "dimensions_mm": {
  "do": 406.4,
  "t": 12.7
 },
 "properties": {
  "A": 15707.9319,
  "Ix": 304657262.4916,
  "Iy": 304657262.4916,
  "Zx": 1499297.5516,
  "Zy": 1499297.5516,
  "Sx": 1969178.8573,
  "Sy": 1969178.8573,
  "J": 609314524.9833,
  "C": 2998595.1033,
  "rx": 139.2664,
  "ry": 139.2664,
  "mass_calc": 123.3073,
  "surface": 1.2767,
  "surface_t": 10.38
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 1781279.4720193427,
  "phiNs": 4947998.533387063,
  "phiNt": 4947998.533387063,
  "phiMsx": 620291340.0599997,
  "phiMsy": 620291340.0599997,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/406-4x12-7chs/"
}