AUSTENITIC STAINLESS STEEL WELDED JOINT AND AUSTENITIC STAINLESS STEEL WELDING MATERIAL

摘要

In austenite stainless steel welding joint, whose base material and welding metal respectively include, and by mass percent, C: are no more than 0.3%, Si: it is no more than 2%, Mn:0.01 to 3.0%, P:0.04% or more 0.3% or less, S: it is no more than 0.03%, Cr:12 to 30%, Ni:6 are to 55%, rare earth metal (): greater than 0.2% to no more than 0.6%, solvable Al:0.001 to 3% and N: it is not more than 0.3%, surplus is Fe and impurity, meets formula (chromium+silicon+1.5 × 2 × P) (with nickel manganese++ 0.31×22×14.2×N C + + 5×P ) 1.388, although P content with higher and the solidification of complete austenite, solidify cracking with excellent proper alignment. Therefore, the austenite stainless steel welding joint can be widely used in such field, required for assemble welding. Each symbol of element is relevant by the element of mass percent in the content that above-mentioned general formula indicates.