I-Aluminium 6061 kanye ne-6063 yomibili ama-alloys adumile kodwa anezinhlobo ezahlukene zamakhemikhali kanye nezakhiwo. I-6061 inamandla futhi imelana nokugqwala, iyenza ifanelekele izinhlelo zokusebenza ezifana namafreyimu ebhayisikili nezingxenye zendiza. I-6063, ngakolunye uhlangothi, isetshenziswa kakhulu kumaphrojekthi wokwakha nokuhlobisa ngenxa yokuqedwa kwayo okubushelelezi. Ngenkathi womabili ama-alloys enikeza izici ezinhle zomshini nezici zokushisela, izakhiwo zawo ezihlukene ziwenza afaneleke kangcono izinhlelo zokusebenza ezithile.