when to use 7018 welding rod_when to use 7018 welding rod

Professionals in the welding industry recognize the importance of selecting the right electrode, as it directly affects the strength and durability of the welded joint. In recent years, Chinese manufacturers have focused on enhancing the coating formulations of welding electrodes to improve arc stability and reduce spatter, thus increasing productivity and reducing costs for users.

        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.

In conclusion, when seeking a welding electrodes supplier, one must carefully evaluate their experience, expertise, authoritativeness, and trustworthiness. These criteria ensure that the supplier is well-equipped to meet the demands of the industry while nurturing a mutually beneficial relationship with their customers. By prioritizing these attributes, businesses and craftsmen can ensure high-quality welding outcomes, enhanced operational productivity, and a strong competitive edge in the marketplace. Making this choice is not just about securing quality products, but about partnering with a supplier who is dedicated to supporting and advancing your welding endeavors.