What kind of stainless steel can be welded by THT-304 welding wire?
304 of the welding wire is recommended to weld 304 of the following products, because the high temperature welding will be carbonized later, so welding should choose a higher level of welding materials as welding wire
THT304 is an underwater arc oxygen cutting electrode. DC reverse connection can be used for all position welding. The utility model is composed of a hollow steel tube and an arc stabilizing agent. Hollow air for intermediate use. The welding rod can be placed in fresh water or sea water for a long time, and the medicine cover can not be damaged.The chemical composition of THT304 welding wire is the same as that of 304 stainless steel, that is, welding 304 kinds of stainless steel.Selection principle of welding rod (welding wire):(1) for ordinary structural steel, the weld metal and base metal are usually required to be of equal strength, and the tensile strength of deposited metal is equal to or higher than that of base metal.(2) for alloy structural steel, the main requirement is that the mechanical properties of welded metal match with the base metal. Sometimes, the alloy composition is required to be the same or close to that of the base metal.(3) the welding rod with lower strength than the base metal can be considered when the welding structure is rigid, the joint stress is high, and the weld seam is prone to crack.(4) when the content of carbon and sulfur, phosphorus and other elements in the base metal is higher, the welding seam is prone to crack, and the low hydrogen welding rod with good crack resistance should be chosen.
THT-304 welding wire corresponds to welding 304 stainless steel, that is often said 1Cr18Ni9Ti or 0Cr18Ni9Ti, etc., corresponding to the AWS standard of 308 stainless steel.
