{
 "designation": "250x150x16.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 85.5,
 "dimensions_mm": {
  "d": 250.0,
  "b": 150.0,
  "t": 16.0,
  "ro": 40.0
 },
 "properties": {
  "A": 10896.6467,
  "Ix": 80173822.9671,
  "Iy": 35823282.7525,
  "Zx": 641390.5837,
  "Zy": 477643.77,
  "Sx": 833585.5705,
  "Sy": 583153.2338,
  "J": 88214459.1516,
  "C": 836168.3578,
  "Iw": 0.0,
  "rx": 85.7768,
  "ry": 57.3372,
  "mass_calc": 85.5387,
  "surface": 0.7313,
  "surface_t": 8.5535
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1695168.0,
  "phiNs": 4413141.926715708,
  "phiNt": 4167967.375231503,
  "phiMsx": 337602156.03699464,
  "phiMsy": 236177059.70120913,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/250x150x16-0rhs/"
}