AUSTENITE WELDING MATERIAL AND METHOD OF PREVENTIVE SERVICING TO RULE OUT CORROSION CRACKING AT STRESS, AND METHOD OF PREVENTING SERVICING TO RULE OUT INTERCRYSTALLINE CORROSION Russian patent published in 2013 - IPC B23K35/30 B23K9/23 C22C30/00 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly, to austenite welding material. Austenite welding material comprises the following elements in wt %: C 0.01 or less, Si 0.5 or less, Mn 0.5 or less, P 0.005 or less, S 0.005 or less, Ni 15 to 40, Cr 20 to 30, N 0.01 or less, O 0.01 or less, Fe and unavoidable impurities making the rest. Content of impurities in welding material makes: B 3 wt % or less, while total content of C, P, S, N and O makes 0.02 wt % or less. To prevent corrosion cracking at strained structure composed of parts welded together and made of austenite stainless steel, welding material is built up on welding thermal effects zone surface to produced weld seam thereon.

EFFECT: ruled out corrosion cracking.

7 cl, 4 dwg, 2 tbl, 12 ex