{
 "designation": "400x400x12.5SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 148.0,
 "dimensions_mm": {
  "d": 400.0,
  "b": 400.0,
  "t": 12.5,
  "ro": 31.25
 },
 "properties": {
  "A": 18838.2854,
  "Ix": 464260329.6812,
  "Iy": 464260329.6812,
  "Zx": 2321301.6484,
  "Zy": 2321301.6484,
  "Sx": 2709880.0146,
  "Sy": 2709880.0146,
  "J": 743678097.8859,
  "C": 3523607.9299,
  "Iw": 0.0,
  "rx": 156.9857,
  "ry": 156.9857,
  "mass_calc": 147.8805,
  "surface": 1.5463,
  "surface_t": 10.4483
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.9938370087676472,
  "phiVv": 2278125.0,
  "phiNs": 7582484.994566977,
  "phiNt": 7205644.149921564,
  "phiMsx": 934305890.7812229,
  "phiMsy": 934305890.7812041,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/400x400x12-5shs/"
}