{
 "designation": "Z20015",
 "type": "Z Purlin (Lysaght Zed)",
 "standard": "AS 1397 / AS/NZS 4600",
 "mass_kg_m": 4.49,
 "dimensions_mm": {
  "d": 203.0,
  "e": 79.0,
  "f": 74.0,
  "lip": 15.0,
  "t": 1.5,
  "ri": 5.0
 },
 "properties": {
  "A": 555.1867,
  "Ix": 3528069.4065,
  "Iy": 620663.1441,
  "Zx": 34759.3045,
  "Sx": 40382.3272,
  "Sy": 11206.2766,
  "J": 416.39,
  "xc": 77.0777,
  "Iu": 3893653.6304,
  "Iv": 255078.9203,
  "alpha": 18.4802,
  "ru": 83.745,
  "rv": 21.4347,
  "Zy": 8052.4371,
  "rx": 79.7167,
  "ry": 33.4355,
  "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/z-purlins/z20015/"
}