CLAD MATERIAL FOR STEEL SHEET CLADDED WITH STAINLESS STEEL, STEEL SHEET CLADDED WITH STAINLESS STEEL, INCLUDING ITS PRODUCTION METHOD Russian patent published in 2016 - IPC C22C38/58 C22C38/44 C21D8/02 B23K20/04 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely to clad material for steel sheet used in marine structures, devices of sea water desalination. Clad material contains, wt%: 0.03 or less of carbon, 1.5 or less of silicon, 2.0 or less of manganese, 0.04 or less of phosphorus, 0.03 or less of sulphur, from 22.0 to 25.0 of nickel, from 21.0 to 25.0 of chromium, from 2.0 to 5.0 of molybdenum, from 0.15 to 0.25 of nitrogen, iron and unavoidable impurities are the rest. Pitting corrosion (CPT) critical temperature of clad material after normalization determined in accordance with ASTM G48-03 Method E is 45 °C or higher, and losses from corrosion in welding zone defined by corrosion test in accordance with standard NORSOK M-601 are 1.0 g/m² or less.

EFFECT: clad material for steel sheet has high corrosion resistance to sea water, provides integrity of compound with improved reliability with simultaneous maintenance of high corrosion and mechanical properties of main and clad materials.

9 cl, 1 tbl, 1 ex