{
  "steelGrades": [
    { "value": "S235", "Fy": 235, "Fu": 360 },
    { "value": "S275", "Fy": 275, "Fu": 430 },
    { "value": "S355", "Fy": 355, "Fu": 510 },
    { "value": "S450", "Fy": 440, "Fu": 550 }
  ],
  "boltGrades": [
    { "value": "4.6", "Fy": 240, "Fu": 460, "pt": 160, "ps": 195 },
    { "value": "4.8", "Fy": 260, "Fu": 480, "pt": 192, "ps": 268.8 },
    { "value": "5.6", "Fy": 300, "Fu": 560, "pt": 224, "ps": 313.6 },
    { "value": "5.8", "Fy": 315, "Fu": 580, "pt": 232, "ps": 324.8 },
    { "value": "6.8", "Fy": 360, "Fu": 680, "pt": 272, "ps": 380.8 },
    { "value": "8.8", "Fy": 575, "Fu": 800, "pt": 375, "ps": 450 },
    { "value": "10.9", "Fy": 700, "Fu": 1000, "pt": 400, "ps": 520 }
  ],
  "weldGrades": [
    { "value": "E60XX", "Fw": 414, "Fw30": 124.2, "C1": 0.857 },
    { "value": "E70XX", "Fw": 483, "Fw30": 144.9, "C1": 1 },
    { "value": "E80XX", "Fw": 552, "Fw30": 165.6, "C1": 1.14 },
    { "value": "E90XX", "Fw": 620, "Fw30": 186, "C1": 1.29 },
    { "value": "E100XX", "Fw": 690, "Fw30": 207, "C1": 1.43 },
    { "value": "E110XX", "Fw": 758, "Fw30": 227.4, "C1": 1.57 }
  ],
  "concreteGrades": [
    { "value": "C20/25", "fc": 20, "Fck": 25 },
    { "value": "C25/30", "fc": 25, "Fck": 30 },
    { "value": "C30/37", "fc": 30, "Fck": 37 },
    { "value": "C35/45", "fc": 35, "Fck": 45 },
    { "value": "C40/50", "fc": 40, "Fck": 50 },
    { "value": "C45/55", "fc": 45, "Fck": 55 },
    { "value": "C50/60", "fc": 50, "Fck": 60 }
  ],
  "BoltsDiameters": [
    { "D": 10, "Ab": 56, "F": 15, "H": 6 },
    { "D": 12, "Ab": 84.3, "F": 20, "H": 8 },
    { "D": 16, "Ab": 157, "F": 28, "H": 10 },
    { "D": 20, "Ab": 245, "F": 32, "H": 12 },
    { "D": 22, "Ab": 303, "F": 37, "H": 14 },
    { "D": 24, "Ab": 353, "F": 41, "H": 16 },
    { "D": 27, "Ab": 459, "F": 45, "H": 18 },
    { "D": 30, "Ab": 561, "F": 41, "H": 20 },
    { "D": 36, "Ab": 817, "F": 51, "H": 20 }
  ]
}