A quantitative effectiveness evaluation for the thermomechanical rolling in producing the high quality tube steels

A quantitative estimation of effectiveness of the thermomechanical rolling (TMR)in providing the high combination of the mechanical properties for tube steels was made. Based on the rolled product standard quality control results, the early proposed specific quality criteria were calculated. Inconsistence with the standard’s quality requirements was shown for more than 5 % of rolled product manufactured. It is emphasized on necessity to improve the existing TMR-technology and tube steels chemical compositions to obtain their high stable quality