{
 "designation": "900WB257",
 "type": "Welded Beam",
 "standard": "AS/NZS 3679.2",
 "mass_kg_m": 257.0,
 "dimensions_mm": {
  "d": 916.0,
  "bf": 400.0,
  "tf": 28.0,
  "tw": 12.0
 },
 "properties": {
  "A": 32720.0,
  "Ix": 5053365866.6667,
  "Iy": 298790506.6667,
  "Zx": 11033549.9272,
  "Zy": 1493952.5333,
  "Sx": 12164400.0,
  "Sy": 2270960.0,
  "J": 6349226.6667,
  "Iw": 58902365322240.016,
  "rx": 392.992,
  "ry": 95.5601,
  "mass_calc": 256.852,
  "surface": 3.408,
  "surface_t": 13.2607
 },
 "design_AS4100": {
  "grade": "300",
  "fy": 280,
  "fu": 430,
  "kf": 0.8301452432737244,
  "phiVv": 1560384.0,
  "phiNs": 6844912.794698898,
  "phiNt": 8245440.0,
  "phiMsx": 3065428800.0000005,
  "phiMsy": 564714057.6000001,
  "ab": 0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/welded-beams/900wb257/"
}