309l flux core wire_309l flux core wire

Our factory can also produce according to the customer ' s requirement, the products widely applies in the national stadium construction , bridges building, ship - building, petrochemical industry, machinery manufacturing, oil and water transportation project, and all kind of engineering. And civilian use is very extensive. Our products have been widely accept by the market , even , many countries used the products to get the large bidding project.
We continuously improve product quality for international economy synchronous development.
We will do the best quality products , excellent service to cooperate with friends of all circles both at home and abroad.

        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.