1. The problem statement, all variables and given/known data Grade 1020 Steel has a yield strength of 42ksi and E modulus of 30 mpsi. Another grade of steel has yield strength 132 ksi. What is its E modulus? 2. Relevant equations E=FL/EA This is the equation i should be using to find e modulus I thing 3. The attempt at a solution I don't see how there are enough variables to find the E modulus, and I thought since all steel is primarily composed of iron that the e modulus would always be the same. Thanks in advance for any advice. I am a freshman studying mechanical engineering, this is my first post here. This seems like a great site!!