Abstract
Induction welding is developing as an alternative method to welding processes. In this study, two different welding processes were applied. One of them was ultra-high frequency induction welding (UHFIW), the other was electrode welding (EW). Additionally, S420 reinforcement steels (RS) were rapidly welded by ultra-high frequency induction system using a current at a frequency of 900 kHz and 2.8 kW power capacity. These steels are generally used in the construction of buildings. S420 RS were welded at 1100 °C by induction for 5 min under an atmosphere environment. Alternatively, S420 RS were welded by the electrode. Mechanical properties and microhardness measurements were investigated for both processes. The results of the experimental studies were compared with each other.

Key words
induction, reinforcement steel, welding, ultra-high frequency

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