Nta: Muaj ntau dua 99. Txij li thaum nws tsis muaj lwm yam kev qhia, cov txheej txheem ntau lawm kuj yooj yim thiab tus nqi kuj pheej yig.
Scope ntawm daim ntawv thov: High-purity aluminium (muaj ntau tshaj 99.9% txhuas) yog siv nyob rau hauv kev sim, tshuaj lom neeg kev lag luam thiab tshwj xeeb lub hom phiaj.
2 series: 2017 2024 thiab lwm yam.
Nta: Aluminium-muaj alloy nrog tooj liab ua lub ntsiab alloy caij. (Cov ntsiab lus tooj liab ntawm 3-5%) Manganese, magnesium, lead thiab bismuth kuj tau ntxiv rau kev ua haujlwm.
Piv txwv li: 2011 alloy, xyuam xim rau kev tiv thaiv kev nyab xeeb thaum lub sij hawm smelting txheej txheem (cov pa phem yuav raug tsim). 2014 alloy yog siv hauv kev lag luam aerospace thiab muaj lub zog siab. 2017 alloy yog me ntsis qis dua 2014 alloy, tab sis yooj yim dua rau tshuab. 2014 tuaj yeem kho cua sov thiab ntxiv dag zog.
Disadvantages: hnyav intergranular corrosion nyiam. Daim ntawv thov: aviation kev lag luam (2014 alloy), ntsia hlau (2011 alloy) thiab kev lag luam nrog kev ua haujlwm siab dua (2017 alloy).