{
 "designation": "400x300x10.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 104.0,
 "dimensions_mm": {
  "d": 400.0,
  "b": 300.0,
  "t": 10.0,
  "ro": 25.0
 },
 "properties": {
  "A": 13256.5026,
  "Ix": 306088120.6445,
  "Iy": 197257509.9506,
  "Zx": 1530440.6032,
  "Zy": 1315050.0663,
  "Sx": 1823718.6727,
  "Sy": 1500893.5412,
  "J": 384070379.5771,
  "C": 2132379.9146,
  "Iw": 0.0,
  "rx": 151.9528,
  "ry": 121.9838,
  "mass_calc": 104.0635,
  "surface": 1.3571,
  "surface_t": 13.0488
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.8765019624177677,
  "phiVv": 1846800.0,
  "phiNs": 4705836.980823076,
  "phiNt": 5070612.255949786,
  "phiMsx": 648739605.2075337,
  "phiMsy": 417866401.2523377,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/400x300x10-0rhs/"
}