e 7018 h4r_7018 dc rod

DingZhou JinLong Metal Production Co. , Ltd. is a professional manufacturer of welding materials. The main products include flux-cored wire, CO, gas shielded wire, stainless steel wire, submerged arc welding wire, argon arc welding wire, electrode and a variety of electrode powder and other products. Our company has passed the ISO9001:2008 Quality System Certification. Some of our products have passed the factory approval of American, Chinese, Norwegian, German, Korean, British and Japanese classification society. Co, gas shielded welding wire, has passed the European Union TUV, CE, DB three certification. Our products are exported to Europe, , Africa, Middle East, Southeast Asia and many other countries and regions. The company has unique production technology and technology to make products reliable quality assurance. The company's products are widely used in ships, vehicles, containers, bridges, pressure vessels and metal structures and other important engineering projects. Welcome domestic and foreign friends to come to exchange cooperation!

        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.