INFLUENCE OF FLAME STRAIGHTENING ON THE P ROPERTIES OF THERMOMECHANICALLY ROLLED SHIPBUILDING STEELS

Description of practice-related flame straightening methods for shipbu ilding plate. Test programme, treatment of specimens in a welding simu lator. Investigation of heat zones as well as simulation tests produce d, among others, the following findings: no impairment of material pro perties to be expected at flame straightening temperatures below 700 d egrees C. At temperatures above 700 degrees C, critical reduction in t he yield point and notch impact energy values. Flame straightening tem peratures above 950 degrees C must be avoided. TM-rolled, higher stren gth shipbuilding steels are generally less critical in their reactions as comparable normalized higher-strength shipbuilding steels.