{
 "designation": "250x250x12.5SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 89.0,
 "dimensions_mm": {
  "d": 250.0,
  "b": 250.0,
  "t": 12.5,
  "ro": 31.25
 },
 "properties": {
  "A": 11338.2854,
  "Ix": 103782745.1329,
  "Iy": 103782745.1329,
  "Zx": 830261.9611,
  "Zy": 830261.9611,
  "Sx": 992321.1127,
  "Sy": 992321.1127,
  "J": 172649776.0328,
  "C": 1272421.6591,
  "Iw": 0.0,
  "rx": 95.6729,
  "ry": 95.6729,
  "mass_calc": 89.0055,
  "surface": 0.9463,
  "surface_t": 10.6331
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1366875.0,
  "phiNs": 4592005.570505178,
  "phiNt": 4336894.149921556,
  "phiMsx": 401890050.63631123,
  "phiMsy": 401890050.6363125,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/250x250x12-5shs/"
}