Beryllium yog hlau grey, lub teeb (qhov ceev yog 1.848 g / cm3), nyuaj, thiab nws yog ib qho yooj yim los tsim ib tug ntom oxide tiv thaiv txheej rau saum npoo nyob rau hauv cov huab cua, yog li nws yog ruaj khov nyob rau hauv chav tsev kub.Beryllium muaj qhov melting point ntawm 1285 ° C, ntau dua li lwm yam hlau teeb (magnesium, aluminium).Yog li ntawd, beryllium-muaj alloys yog lub teeb, nyuaj, thiab resistant rau high kub, thiab yog zoo tagnrho cov ntaub ntawv rau kev tsim aviation thiab aerospace khoom.Piv txwv li, kev siv beryllium alloys los ua foob pob ua ntxaij casings tuaj yeem txo qhov hnyav;kev siv beryllium alloys los ua cov khoom siv satellites thiab lub dav hlau tuaj yeem ua kom muaj kev nyab xeeb ntawm kev ya davhlau.

"Kev qaug zog" yog ib qho teeb meem ntawm cov hlau dav dav.Piv txwv li, ib tug ntev load-bearing hlau hlua yuav tawg vim "nkoos", thiab lub caij nplooj ntoos hlav yuav poob nws elasticity vim "nkoos" yog hais tias nws yog rov compressed thiab so.Hlau beryllium muaj kev tiv thaiv qaug zog.Piv txwv li, ntxiv txog 1% hlau beryllium rau molten hlau.Lub caij nplooj ntoos hlav ua los ntawm cov hlau alloy no tuaj yeem ncav cuag 14 lab lub sijhawm tsis tu ncua tsis tas yuav poob elasticity vim "kev qaug zog", txawm tias nyob rau hauv lub xeev ntawm "liab tshav kub" Tsis tas yuav poob nws yooj yim, nws tuaj yeem piav qhia tias "indomitable".Yog hais tias txog 2% hlau beryllium ntxiv rau bronze, lub zog tensile thiab elasticity ntawm no tooj liab beryllium alloy tsis txawv ntawm hlau.Yog li ntawd, beryllium yog hu ua "kev qaug zog-resistant hlau".

Lwm qhov tseem ceeb ntawm cov hlau beryllium yog tias nws tsis tawg thaum nws tsoo, yog li tooj liab-nickel alloys uas muaj beryllium feem ntau siv los ua "tsis muaj hluav taws" xyaum, rauj, riam thiab lwm yam cuab yeej, tshwj xeeb tshaj yog siv rau kev ua haujlwm flammable thiab explosive cov ntaub ntawv.

Hlau beryllium kuj muaj cov cuab yeej ua pob tshab rau hluav taws xob.X-rays ua piv txwv, lub peev xwm nkag mus rau beryllium yog 20 npaug zog dua li cov hlau lead thiab 16 npaug zog dua tooj liab.Yog li ntawd, hlau beryllium muaj lub koob npe nrov ntawm "hlau iav", thiab beryllium feem ntau yog siv los ua "qhov rais" ntawm X-ray raj.

Hlau beryllium kuj muaj kev ua haujlwm zoo ntawm kev xa suab.Kev nthuav tawm ceev ntawm lub suab hauv cov hlau beryllium yog siab li 12,600 m / s, uas yog siab tshaj qhov ceev ntawm suab hauv huab cua (340 m / s), dej (1500 m / s) thiab hlau (5200 m / s) .nyiam los ntawm kev lag luam suab paj nruag.