FIELD: chemistry.
SUBSTANCE: invention can be used in electrochemical protection of gas- and oil-pipelines, and more specifically for joining cathode and drainage outputs with walls of the pipeline. Components of the composition for thermite welding are in the following ratio, wt %: copper oxide 57.7 to 63.0, aluminium 8.0 to 8.4, copper 11.0 to 11.6, lead 0.2 to 2.0, ferromanganese 12.8-13.3 and adhesive substance in form of BF-4 adhesive 5.0 to 7.0.
EFFECT: improved quality of welded joint, specifically its form and strength.
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