Climbing rope

 

I managed to get to see the data on a climbing rope. I take it 9.8mm means the diameter which would mean a cross-sectional area of 7.5 x 10^-5 square metres. This suggests that for static elongation a standard 80kg load is applied (ie sort of a human). Stress = F/A = 10 million N/m^2 approx. If strain is 8% for this, Young Modulus = stress/strain = 130 million N/m^2.