{
 "designation": "250UB31.4",
 "type": "Universal Beam",
 "standard": "AS/NZS 3679.1",
 "mass_kg_m": 31.4,
 "dimensions_mm": {
  "d": 252.0,
  "bf": 146.0,
  "tf": 8.6,
  "tw": 6.1,
  "r1": 8.9
 },
 "properties": {
  "A": 4011.5011,
  "Ix": 44695059.6648,
  "Iy": 4467085.9181,
  "Zx": 354722.6958,
  "Zy": 61192.9578,
  "Sx": 397538.2919,
  "Sy": 94185.7486,
  "J": 89285.4612,
  "Iw": 66161518152.8451,
  "rx": 105.5544,
  "ry": 33.3702,
  "mass_calc": 31.4903,
  "surface": 1.0605,
  "surface_t": 33.7745
 },
 "design_AS4100": {
  "grade": "300",
  "fy": 320,
  "fu": 440,
  "kf": 1.0,
  "phiVv": 265628.16,
  "phiNs": 1155312.3072116983,
  "phiNt": 1155312.3072116983,
  "phiMsx": 114134744.98692012,
  "phiMsy": 26323968.657803684,
  "ab": 0.0
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/universal-beams/250ub31-4/"
}