{
 "designation": "250x250x16.0SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 111.0,
 "dimensions_mm": {
  "d": 250.0,
  "b": 250.0,
  "t": 16.0,
  "ro": 40.0
 },
 "properties": {
  "A": 14096.6467,
  "Ix": 124046889.6338,
  "Iy": 124046889.6338,
  "Zx": 992375.1171,
  "Zy": 992375.1171,
  "Sx": 1207985.5705,
  "Sy": 1207985.5705,
  "J": 212056145.5376,
  "C": 1533304.1073,
  "Iw": 0.0,
  "rx": 93.807,
  "ry": 93.807,
  "mass_calc": 110.6587,
  "surface": 0.9313,
  "surface_t": 8.3903
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1695168.0,
  "phiNs": 5709141.926715721,
  "phiNt": 5391967.375231514,
  "phiMsx": 489234156.03699386,
  "phiMsy": 489234156.0369963,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/250x250x16-0shs/"
}