Exercise 5 It is desirable to produce a cylindrical steel bar (1040 steel) with min. tensile strength (TS) = 865 MPa, a ductility of at least 10 (% EL = 10) and a diameter. of 6.3 mm. What we have available are 8 mm rods that are deformed 20%. (% CW = 20.) View the procedure required to achieve the properties described above. Assume that the steel bar can withstand a CW = 40% before fracture occurs.