Chemical compositions of billets are inspected in all processes of casting. When casting ends, surface quality is checked. Billets with low surface quality are marked and split. Billet diameters are measured after every casting.
When homogenization ends, samples are taken from billets to inspect in metallography laboratory. In metallography laboratory process steps are sectioning, mounting, course grinding, fine grinding, polishing, etching and microscopic examination. Yavuz Aluminum accepts ISO 9001: 2015 as guide in terms of quality standards.