{
 "designation": "300x200x12.5RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 89.0,
 "dimensions_mm": {
  "d": 300.0,
  "b": 200.0,
  "t": 12.5,
  "ro": 31.25
 },
 "properties": {
  "A": 11338.2854,
  "Ix": 134899291.6166,
  "Iy": 71995305.3484,
  "Zx": 899328.6108,
  "Zy": 719953.0535,
  "Sx": 1111715.7467,
  "Sy": 841676.4787,
  "J": 157596041.1013,
  "C": 1210658.8505,
  "Iw": 0.0,
  "rx": 109.0765,
  "ry": 79.6853,
  "mass_calc": 89.0055,
  "surface": 0.9463,
  "surface_t": 10.6331
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 1670625.0,
  "phiNs": 4592005.570505174,
  "phiNt": 4336894.149921553,
  "phiMsx": 450244877.3989412,
  "phiMsy": 340878973.8736849,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/300x200x12-5rhs/"
}