{
 "designation": "127x51x5.0RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 12.5,
 "dimensions_mm": {
  "d": 127.0,
  "b": 51.0,
  "t": 5.0,
  "ro": 12.5
 },
 "properties": {
  "A": 1594.1257,
  "Ix": 2894285.2259,
  "Iy": 679199.8586,
  "Zx": 45579.2949,
  "Zy": 26635.2886,
  "Sx": 59931.7476,
  "Sy": 31274.9726,
  "J": 1928929.9094,
  "C": 48630.4809,
  "Iw": 0.0,
  "rx": 42.6098,
  "ry": 20.6413,
  "mass_calc": 12.5139,
  "surface": 0.3345,
  "surface_t": 26.763
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 284310.0,
  "phiNs": 645620.8912808258,
  "phiNt": 609753.0639874467,
  "phiMsx": 24272357.773015067,
  "phiMsy": 12404347.151653977,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/127x51x5-0rhs/"
}