The main material of L360 steel pipe is carbon steel, which has high strength and toughness. Its chemical composition contains a certain proportion of carbon, silicon, manganese, phosphorus, sulfur and other elements. At the same time, L360 steel pipe must also meet certain requirements such as cold bending performance, impact toughness and welding performance.
Relationship between welding performance and material
Material is one of the important factors affecting the welding performance of L360 steel pipe. Specifically, different materials will directly affect the formation of molten pool, grain refinement and organizational properties during welding.
The chemical composition of the material determines the formation characteristics of the molten pool. The formation speed and temperature distribution of the molten pool of L360 steel pipes of different materials will be different during welding. This will directly affect the formation of the weld and the welding strength.
The degree of grain refinement of the material will affect the mechanical properties of the welded joint. The finer the grain, the higher the tensile strength and toughness of the welded joint. Therefore, when selecting the material, the degree of grain refinement needs to be considered.
The organizational properties of the material will also affect the welding performance. The structural properties of the material determine the hardness, plasticity and corrosion resistance of the welded joint. Therefore, choosing the right material can improve the comprehensive performance of the welded joint.
