{
 "designation": "C20019",
 "type": "C Purlin (Lysaght Cee)",
 "standard": "AS 1397 / AS/NZS 4600",
 "mass_kg_m": 5.74,
 "dimensions_mm": {
  "d": 203.0,
  "b": 76.0,
  "lip": 19.0,
  "t": 1.9,
  "ri": 5.0
 },
 "properties": {
  "A": 712.8438,
  "Ix": 4511407.9742,
  "Iy": 530500.9598,
  "Zx": 44447.3692,
  "Sx": 51831.0853,
  "Sy": 14819.4073,
  "J": 857.7887,
  "xc": 21.7059,
  "Zy": 9770.87,
  "rx": 79.5534,
  "ry": 27.2801,
  "mass_calc": 5.5958,
  "surface": 0.7542,
  "surface_t": 131.3881
 },
 "design_AS4100": {
  "grade": "G450",
  "fy": 450,
  "fu": 480
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/c-purlins/c20019/"
}