What are the advantages of using tungsten electrodes?

The advantages of using tungsten electrodes primarily stem from their high melting point and low electrical resistance. Tungsten has an exceptionally high melting point, which makes it ideal for use in high-temperature welding processes like Gas Tungsten Arc Welding (GTAW). It can withstand the intense heat generated by the welding arc without melting, ensuring that the electrode remains stable and effective throughout the welding process. This characteristic allows for longer service life and reliability in producing quality welds.

Additionally, tungsten exhibits low electrical resistance, which facilitates efficient current transfer in the welding circuit. This is crucial for creating a stable arc and maintaining optimal heat input for effective fusion of the base materials. The combination of these properties enhances the performance of the welding process, allowing for precise control and cleaner welds, which is particularly important when working with thin materials or when a high degree of finish is required.

Other options do not accurately describe the beneficial characteristics of tungsten electrodes in a welding context.