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Normalized Steel

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Hi everyone,
Does the steel which will undergo heat treatment (normalizing) to improve its mechanical properties will change its chemical properties also?
We have a vendor that have surplus of ASTM A572 steel but need to normalized the steel in order to pass charpy test. Is it still required to submit another CMTR of the steel after the heat treatment? Or the original CMTR is sufficient?
Thanks in advance,
A S Quilala