{
 "designation": "20x20x2.0SHS",
 "type": "Square Hollow Section",
 "standard": "AS/NZS 1163",
 "mass_kg_m": 1.05,
 "dimensions_mm": {
  "d": 20.0,
  "b": 20.0,
  "t": 2.0,
  "ro": 4.0
 },
 "properties": {
  "A": 133.6951,
  "Ix": 6921.3343,
  "Iy": 6921.3343,
  "Zx": 692.1334,
  "Zy": 692.1334,
  "Sx": 876.8252,
  "Sy": 876.8252,
  "J": 12148.9603,
  "C": 1059.9086,
  "Iw": 0.0,
  "rx": 7.1951,
  "ry": 7.1951,
  "mass_calc": 1.0495,
  "surface": 0.0731,
  "surface_t": 69.6496
 },
 "design_AS4100": {
  "grade": "C450L0",
  "fy": 450,
  "fu": 500,
  "kf": 1.0,
  "phiVv": 15552.0,
  "phiNs": 54146.50695369947,
  "phiNt": 51138.367678493945,
  "phiMsx": 355114.1893406792,
  "phiMsy": 355114.18934067886,
  "ab": -0.5
 },
 "units": "mm, N, N.mm (capacities); see /notation/",
 "source": "https://steelinfo.au/square-hollow-sections/20x20x2-0shs/"
}