{
 "designation": "101.6x4.0CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 9.63,
 "dimensions_mm": {
  "do": 101.6,
  "t": 4.0
 },
 "properties": {
  "A": 1226.4778,
  "Ix": 1462844.5682,
  "Iy": 1462844.5682,
  "Zx": 28796.1529,
  "Zy": 28796.1529,
  "Sx": 38124.3733,
  "Sy": 38124.3733,
  "J": 2925689.1363,
  "C": 57592.3058,
  "rx": 34.5358,
  "ry": 34.5358,
  "mass_calc": 9.6279,
  "surface": 0.3192,
  "surface_t": 33.1449
 },
 "design_AS4100": {
  "grade": "C250L0",
  "fy": 250,
  "fu": 320,
  "kf": 1.0,
  "phiVv": 99344.6995288779,
  "phiNs": 275957.49869132746,
  "phiNt": 275957.49869132746,
  "phiMsx": 8577984.000000004,
  "phiMsy": 8577984.000000004,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/101-6x4-0chs/"
}