{
 "designation": "165.1x5.0CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 19.7,
 "dimensions_mm": {
  "do": 165.1,
  "t": 5.0
 },
 "properties": {
  "A": 2514.8449,
  "Ix": 8065425.155,
  "Iy": 8065425.155,
  "Zx": 97703.5149,
  "Zy": 97703.5149,
  "Sx": 128201.7167,
  "Sy": 128201.7167,
  "J": 16130850.3101,
  "C": 195407.0298,
  "rx": 56.6315,
  "ry": 56.6315,
  "mass_calc": 19.7415,
  "surface": 0.5187,
  "surface_t": 26.3288
 },
 "design_AS4100": {
  "grade": "C250L0",
  "fy": 250,
  "fu": 320,
  "kf": 1.0,
  "phiVv": 203702.43845508897,
  "phiNs": 565840.1068196916,
  "phiNt": 565840.1068196916,
  "phiMsx": 28845386.249999993,
  "phiMsy": 28845386.249999993,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/165-1x5-0chs/"
}