1. The problem statement, all variables and given/known data I was given the problem to try experimentally find youngs modulus for normalized steel but when i did the equation the value i got was about 33 GPa. It is supposed to be around 200 isnt it? I cannot figure out what is wrong, am i missing something or is the measured data probably wrong? these values were all measured experimentally and in a bit of a hurry so it could be that, that is causing the problem, but i cant see howthe result could be thrown so off... heres the data anyway Test piece original length: 25mm Diameter: 3.52mm -- cross sec area:9.73mm^2 and the graphs attached , looking at the one for normalized steel, but also tried it with tempered steel with similiarbad results 2. Relevant equations Youngs modulus -> dStress/dStrain 3. The attempt at a solution i took 2 points at x=1.28mm, y = 9600 N and x=1mm, y = 6000 N [ (9600/9.73*10^-6) - (6000/9.73*10^-6) ] / [ (1.28/25) - (1/25) ] = 33.035 GPa I know i probably didnt read the values off the graph very accurately but I didnt expect the answer to be so far off because of that.