When a rectangular section, 100 mm wide and 60 mm thick, is rolled to some thickness in one pass with rolls of 400 mm diameter in hot rolling, where coefficient of friction is 0.3,
(i) What is the highest possible reduction in that pass?
(ii) What will be the ‘length of contact’ with the rolls?
(iii) If the mean rolling pressure is 500 MPa, what is the total rolling load?