{
 "designation": "250x150x12.5RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 69.4,
 "dimensions_mm": {
  "d": 250.0,
  "b": 150.0,
  "t": 12.5,
  "ro": 31.25
 },
 "properties": {
  "A": 8838.2854,
  "Ix": 68496286.7996,
  "Iy": 30813013.9296,
  "Zx": 547970.2944,
  "Zy": 410840.1857,
  "Sx": 695446.1127,
  "Sy": 487906.8447,
  "J": 73413793.4315,
  "C": 710328.7977,
  "Iw": 0.0,
  "rx": 88.0338,
  "ry": 59.045,
  "mass_calc": 69.3805,
  "surface": 0.7463,
  "surface_t": 10.7542
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1366875.0,
  "phiNs": 3579505.5705051753,
  "phiNt": 3380644.1499215546,
  "phiMsx": 281655675.636313,
  "phiMsy": 197602272.11105257,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/250x150x12-5rhs/"
}