【4.0Φ Welding Rod for Carbon Steel】 This welding rod can be used for general carbon steel welding. 【Easy Arc Initiation and Stable Arc】 It has excellent arc initiation and a stable arc that is less likely to break, allowing for smooth welding operations. This carbon steel welding rod is easy to handle for beginners to experienced welders. 【Low Spatter and Easy Slag Removal】 It produces less spatter during welding, making post-weld cleaning easy. The slag is flaky and easily peels off naturally, reducing the effort required for post-processing. 【Stable Strength and Beautiful Finish】 Using low carbon steel, it has a beautiful bead appearance and ensures sufficient welding strength. It is widely applicable from practice to repair work and general carbon steel welding. 【Precautions for Use】 If the amount of welding is insufficient and the gap is not sufficiently filled, cracks may occur due to expansion and contraction caused by heating and cooling. If there is rust on the base metal, remove it beforehand before welding.