stress-strain field and rolling force of stock during 10 passes finishing rolling process from Φ16 mm rolling to Φ5. 5 mm wire of steel 42A (0. 39% ~0. 46% C) has been carried out by analysis on heat transfer in high speed continuous rolling process at steel works and by means of established 3D thermo-mechanical coupling model between wire and roller with ABAQUS software. It is obtained that after finishing rolling the temperature of center of stock increases by 130 °C while the temperature of surface of stock decreases by 10℃
which is caused by radiation of stock-self and water cooling. The relative error between calculated and measured value of rolling force in 10 passes is 1.88% -4. 50%.