FIELD: metallurgy.
SUBSTANCE: invention relates to articles made from aluminium alloy having high internal pressure resistance at high temperatures and can be used in multilayer tubes used as sanitary pipes or heating pipes. The multilayer tube has a tube wall comprising a core layer made from a rolled aluminium alloy product, and an inner and an outer layer made from plastic. The aluminium alloy in the core layer contains the following, wt %: Si from 0.2 to 1.4, Fe+Mn from 1.1 to 1.8, Cu from 0.15 to 0.5, Mg <0.2, Ti <0.2, Zn <1.5, impurities <0.05 each, total <0.2, and the balance being aluminium.
EFFECT: longer service life of flexible multilayer tubes.
13 cl, 1 dwg, 4 tbl, 1 ex
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