Selecting Thermal Treatment Regimes for Oil Pipes by Modeling with Taking into Account Heat Transfer
A new method based on heat transfer modeling for determination of heat treatment oil and gas transportation pipes actual parameters is presented. The case of high temperature tempering of low alloyed steel (0,13 % C, 0,6 % Cr, 0,55 % Mn, 0,05 % V) pipes (steel grade K52) has been considered and calculated. The actual time moments of isothermal holding beginning has been calculated. Taking this information into account we corrected heat treatment mode. These corrections reduced amount of heat retreatment of these pipes by a factor of 18.