different welding rod sizes_5 32 7018

        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 within the sector displays that these electrodes consistently meet rigorous demands of strength and durability. A pivotal factor behind this reliability is China's vast network of manufacturers which have honed their techniques over decades. These manufacturers seamlessly blend traditional craftsmanship with cutting-edge technology, resulting in products that not only meet, but often exceed international standards. A tour of factories in provinces like Jiangsu and Zhejiang exposes how quality control measures are meticulously implemented, with each welding electrode undergoing a series of tests to evaluate its tensile strength, conductivity, and resistance to corrosion. Such dedication to quality assures end-users of a dependable and enduring product.