stick vs mig for beginners_when to use 7018 welding rod

The welding electrodes from China offer a competitive edge with their cost-effectiveness, coupled with advanced technology that guarantees excellent arc stability and minimal spatter. Available in a variety of compositions such as mild steel, stainless steel, and specialty alloys, these electrodes cater to the nuanced demands of different metals and welding conditions. Their versatility is a testament to the expertise that Chinese manufacturers bring to the table.

        Cast iron welding rod is a welding rod used for cast iron, characterized by high strength and good plasticity. It is suitable for gray cast iron and ductile iron, and can be machined.
        Cast iron is usually classified according to the distribution of carbon in cast iron, and can generally be divided into white cast iron, gray cast iron, ductile cast iron, vermicular cast iron and malleable cast iron. Due to the high carbon content, uneven structure, low plasticity and poor weldability of cast iron, it is very easy to produce defects such as white cast iron, cracks and pores during welding. Special attention should be paid to the selection of welding process and welding materials during welding. For welding rod arc welding, it can basically be divided into two categories, one is the homogeneous weld type, namely cast iron type; the other is the heterogeneous weld type such as: steel (carbon steel or alloy structural steel, etc.), pure Ni (pure nickel 308), Ni-Fe (nickel iron 408), Ni-Cu (nickel copper 508), Ni-Fe-Cu, Fe-Cu, etc. When selecting welding rods, you can choose according to different cast iron materials, different cutting requirements, different service conditions and importance, different structural characteristics, stiffness, etc.

Experience in the field indicates that Chinese manufacturers have developed a diverse range of welding electrodes to meet various industrial needs. From basic covered electrodes used in simple arc welding to sophisticated low-hydrogen electrodes designed for high-stress environments, the variety available is extensive. Many workshops and construction sites globally are now relying on Chinese welding electrodes for their projects, given their proven track record of performance.