Special features of welding equipment and pipelines in nuclear power stations made of pearlitic and austenitic steels

Abstract

In long-term service of dissimilar welded joints (DWJ) in sections connecting equipment and pipelines made of pearlitic and austenitic steels, corrosion damage was observed in the material associated with the intercrystalline corrosion of the metal of the type 10Kh16N24AM6, deposited with UA 395/9 electrodes. The deposited metal of the type 02Kh23N15 is characterized by high corrosion resistance, is not susceptible to hot cracking and can be recommended for the first layer of the load-carrying edges of DWJ.

Keywords:

• Pearlitic steels
• austenitic steels
• intergranular corrosion
• hot cracks
• battering

Notes

Selected from Svarochnoe Proizvodstvo, 2015, 68 (11) 10–16.