Weldability Studies of Atmospheric and Marine Corrosion Resistant Tmt Bars Using Smaw Process

摘要

Recent efforts at Steel Authority of India Limited (SAIL) has led to the sucessful development of atmospheric and marine corrosion resistnat high tensile Thermo Mechanically Treated (TMT) bars with minimum specified yield strength of 50 kg.mm~-2. these rebars are increasingly beign used for a wide ragne of end-applications, namely, concrete reinforcement structures, bridges, flyovers, dams etc. Welding is an important processing tool for each of the above applications. In view of the importance of welding, a comprehensive evalaution of the weldability properties has been carried for the two grades of steels using Submerged Metal Arc Welding (SMAW) process; the most popularly used technique of welding of reinforcement bars (rebars).