{
 "designation": "400x200x12.5RHS",
 "type": "Rectangular Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 109.0,
 "dimensions_mm": {
  "d": 400.0,
  "b": 200.0,
  "t": 12.5,
  "ro": 31.25
 },
 "properties": {
  "A": 13838.2854,
  "Ix": 276499913.0145,
  "Iy": 94000513.6817,
  "Zx": 1382499.5651,
  "Zy": 940005.1368,
  "Sx": 1741130.0146,
  "Sy": 1076051.4787,
  "J": 235629677.6994,
  "C": 1650203.3159,
  "Iw": 0.0,
  "rx": 141.3534,
  "ry": 82.4184,
  "mass_calc": 108.6305,
  "surface": 1.1463,
  "surface_t": 10.5169
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 0.9958051093582934,
  "phiVv": 2278125.0,
  "phiNs": 5580995.282536081,
  "phiNt": 5293144.149921564,
  "phiMsx": 705157655.9242036,
  "phiMsy": 378344769.32193935,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/rectangular-hollow-sections/400x200x12-5rhs/"
}