WELDING STRIP Russian patent published in 2009 - IPC B23K35/30 C22C38/58 C22C38/48 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy field, particularly to development of complicated-alloyed welding materials for pad weld of anticorrosive coat on products of atomic power machine building. Welding strip is implemented from material, containing carbon, silicon, manganese, chrome, nickel, niobium, sulfur, phosphorus, aluminium, tin, nitrogen, cerium, yttrium and iron at following correlation, wt %: carbon 0.01 ÷ 0.025, silicon 0.17 ÷ 0.35, manganese 1.4 ÷1.7, chrome 19.5 ÷ 22.0, nickel 11.0 ÷ 12.5, niobium 0.5 ÷ 0.8, sulfur 0.001 ÷ 0.010, phosphorus 0.001 ÷ 0.015, aluminium 0.05 ÷ 0.10, tin 0.001 ÷ 0.005, nitrogen 0.01 ÷ 0.05, cerium + yttrium 0.05 ÷ 0.10, iron is the rest. Content of material comply with correlations: S + P ≤ 0.020, Al + Sn + N₂ ≤ 0.15, 0.94·[Cr]equ - 7.35 ≤ [N_i]equ ≤ [Cr]equ - 7.45, where [Cr]equ = %Cr +1.5·%Si+0.5·%Nb, [N_i]equ = %Ni+30·%C + 0.5·%Mn.

EFFECT: increasing of resistibility of deposited metal against embrittlement after tempering in the range of temperatures 640-675°C of duration up to 55 h, required factors of plasticity and impact elasticity at keeping of durability and corrosion stability.

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