{
 "designation": "42.4x4.0CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 3.79,
 "dimensions_mm": {
  "do": 42.4,
  "t": 4.0
 },
 "properties": {
  "A": 482.5486,
  "Ix": 89908.461,
  "Iy": 89908.461,
  "Zx": 4240.9651,
  "Zy": 4240.9651,
  "Sx": 5919.5733,
  "Sy": 5919.5733,
  "J": 179816.9221,
  "C": 8481.9303,
  "rx": 13.6499,
  "ry": 13.6499,
  "mass_calc": 3.788,
  "surface": 0.1332,
  "surface_t": 35.146
 },
 "design_AS4100": {
  "grade": "C250L0",
  "fy": 250,
  "fu": 320,
  "kf": 1.0,
  "phiVv": 39086.43915890277,
  "phiNs": 108573.44210806326,
  "phiNt": 108573.44210806326,
  "phiMsx": 1331903.9999999998,
  "phiMsy": 1331903.9999999998,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/42-4x4-0chs/"
}