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6.7.4.3.3.3. Steels used in the construction of shells shall have an elongation at fracture, in %, of not less than 10000/Rm with an absolute minimum of 16 % for fine grain steels and 20 % for other steels. Aluminium and aluminium alloys used in the construction of shells shall have an elongation at fracture, in %, of not less than 10000/6Rm with an absolute minimum of 12 %.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-31 · Text as adopted (Official Journal); later amendments are not incorporated in this text.