Alloy 718 yog npib tsib xee-chromium alloy uas tuaj yeem ua kom muaj kev kub ntxhov, yooj yim ntawm cov muaj peev xwm ua kom muaj zog, uas tuaj yeem muab welded nrog kev tawg zoo. Cov alloy tuaj yeem siv nyob rau ntawm qhov kub txog 700oC.
Cov ntawv thov raug rau cov alloy suav nrog cov ethylene pyrolysis, hydrocarbon tawg, tawg nthab li vinyl chloride, dipyl thiab acetic acid. Cov alloy tseem siv rau li qub, fittings thiab lwm yam nthuav tawm rau corrosive nres los ntawm 1100 txog 1800 deg F.