FIELD: welding technology. SUBSTANCE: invention can be used when joining cathode and drainage terminals to walls of gas and oil main lines. Copper thermit composition is modified by lead and contains, wt %: aluminum 8.0-8.4, copper 11.0- 11.6, lead 0.2-2.0, ferromanganese 12.8-13.3, and copper oxide - the balance. EFFECT: increased reliability and impact strength of welded joins. 1 tbl
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