Material Young Modulus / GPa Aluminium 70 Beech Wood 15 Bone 18 Brass 90-110 Brick 7-20 Cast Iron 110 Concrete 40 Copper 130 Diamond 1200 Glass 70-80 Granite 50 Lead 18 Mild Steel 210 Nylon 2 Oak 11 Perspex 3 Plastic 2 Polystyrene 2.7-4.2 Rubber 0.01 Sandstone 6.3 Slate 110 Tin 50 Wood approx 10 Wrought Iron 200