Ukuminyana kwensimbi engagqwali ngu-7.7 g/cm³.Lapho insimbi engagqwali isetshenziswa ezinqubweni ezahlukene ezimbonini ezihlukahlukene, kunciphisa isikhathi sokulethwa esithathwe izingxenye ezenziwe ngensimbi engagqwali.Lokhu kungenxa yokuthi, ngenxa yokusebenzisa insimbi engagqwali, asikho isidingo sokuqeda ukwenziwa.Insimbi engagqwali ine-ductility ephezulu kanye nezinga eliphezulu lokuqina komsebenzi.Insimbi engagqwali inamandla ashisayo aphakeme kanye nokuqina okuphezulu kwe-cryogenic.Insimbi engagqwali itholakala emabangeni angaphezu kuka-150, kodwa amabanga ayi-15 kuphela asetshenziswa ngokujwayelekile.Into enhle ngempela ngensimbi engagqwali ukuthi ingaphinda igaywe kabusha ngo-100%.