WELDING WIRE COMPOSITION Russian patent published in 2009 - IPC B23K35/30 

FIELD: metallurgy industry.

SUBSTANCE: welding wire includes the following component ratio, wt %: carbon 0.10-0.12, silicium 0.15-0.25, manganese 0.5-0.7, chrome 1.6-1.8, nickel 0.21-0.30, molybdenum 0.5-0.6, vanadium 0.20-0.25, titanium 0.05-0.10, copper 0.01-0.06, aluminium 0.005-0.015, nitrogen 0.003-0.015, oxygen 0.001-0.005, stannum 0.0001-0.001, stibium 0.001-0.005, arsenic 0.001-0.080, cobalt 0.005-0.020, plumbum 0.001-0.010, sulphur 0.001-0.006, phosphorus 0.001-0.006, calcium 0.005-0.030, sodium 0.001-0.005, and iron is the rest. The following condition shall be observed: Q=(Ni+Co)²+1.5Cu+0.2Mn+P+0.25(Sb+Sn)≤0.29, where Q - embrittlement criterion in radiation conditions.

EFFECT: decreasing temperature of brittle and viscous metal junction of welds to -20°C and simultaneous provision of high resistance to thermal and radiation embrittlement.

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