{
 "designation": "C20015",
 "type": "C Purlin (Lysaght Cee)",
 "standard": "AS 1397 / AS/NZS 4600",
 "mass_kg_m": 4.49,
 "dimensions_mm": {
  "d": 203.0,
  "b": 76.0,
  "lip": 15.5,
  "t": 1.5,
  "ri": 5.0
 },
 "properties": {
  "A": 555.1867,
  "Ix": 3525030.3338,
  "Iy": 396372.3387,
  "Zx": 34729.3629,
  "Sx": 40369.9522,
  "Sy": 11090.3602,
  "J": 416.39,
  "xc": 20.6896,
  "Zy": 7166.3265,
  "rx": 79.6823,
  "ry": 26.7197,
  "mass_calc": 4.3582,
  "surface": 0.7433,
  "surface_t": 165.5356
 },
 "design_AS4100": {
  "grade": "G450",
  "fy": 450,
  "fu": 480
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/c-purlins/c20015/"
}