No, change occurs in crystalline structure.
Regards,
On Tue, Nov 17, 2009 at 10:30 AM, Alfonso Quilala <asqengg2@yahoo.com> wrote:
> 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
>
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