aws a5.18 er70s-6 pdf_aws a5.18 er70s-6 pdf

        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.

One significant factor that indicates a reliable supplier is their extensive experience in the industry. Experienced suppliers have weathered various market changes and technological advancements, allowing them to offer insights and solutions that newer entities may not provide. They understand the nuances of different electrode types, such as SMAW (Shielded Metal Arc Welding), GTAW (Gas Tungsten Arc Welding), and GMAW (Gas Metal Arc Welding), and can recommend the best options for specific projects.