{
 "designation": "165.1x3.5CHS",
 "type": "Circular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 13.9,
 "dimensions_mm": {
  "do": 165.1,
  "t": 3.5
 },
 "properties": {
  "A": 1776.8848,
  "Ix": 5803041.4611,
  "Iy": 5803041.4611,
  "Zx": 70297.2921,
  "Zy": 70297.2921,
  "Sx": 91415.2517,
  "Sy": 91415.2517,
  "J": 11606082.9222,
  "C": 140594.5842,
  "rx": 57.1476,
  "ry": 57.1476,
  "mass_calc": 13.9485,
  "surface": 0.5187,
  "surface_t": 37.3149
 },
 "design_AS4100": {
  "grade": "C350L0",
  "fy": 350,
  "fu": 430,
  "kf": 1.0,
  "phiVv": 201498.73687230202,
  "phiNs": 559718.7135341723,
  "phiNt": 559718.7135341723,
  "phiMsx": 27271509.951936428,
  "phiMsy": 27271509.951936428,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/circular-hollow-sections/165-1x3-5chs/"
}