Question: 2 - A hot - rolled AISI 1 0 4 5 steel is under a 2 5 0 MPa normal stress. [ Use Table A

2- A hot-rolled AISI 1045 steel is under a 250 MPa normal stress. [Use Table A-22]
a. What is the factor of safety for this part against yield?
b. Calculate the new yield and ultimate tensile strength after 10% cold work on the
material.
c. What would be the new factor of safety?
d. Does the material ductility increase or decrease after the cold work? Explain your
answer.
2 - A hot - rolled AISI 1 0 4 5 steel is under a

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