Alloy 20 (alroy 20) ndi Aluto wochokera ku chitsulo chokhazikitsidwa kuti athe kukana sulfurosic acid kuvunda. Ili ndi kukana kwabwino kwa sulfuric acid kuvunda; Ili ndi kukana kwamphamvu ku phosphoroc acid, nitric acid ndi chloride madera, chloride kupsinjika kukhetsa, kuponderezana ndi kuwonongeka. Chifukwa chake, alloy 20 ali ndi dzina la anti-Corrosion alloy; Ili ndi ntchito zingapo: monga: mankhwala, chakudya, mankhwala, kupanga mphamvu ndi mafakitale kumagwiritsa ntchito. Chifukwa chokana kuponyera chipongwe ndi chloride chiwonongeko, kupsinjika kuwononga mavuto, etc. 20 amakonda 20 nthawi zambiri amagwiritsidwa ntchito.
Kutsutsa
FOSTELOLLOYC-276 (FOTELOLEY) ndi a Tungstey-nickel-chromium-molybdenum alsicon-carbon zomwe zili ndi aluminiyamu yolimba kwambiri. Chlorine yolimba yopanda chinyezi, mpweya wosiyanasiyana wa mpweya wabwino, isopropyl soorides, hydrochloric acid ndi mpweya wabwino wotentha kwambiri ndikuyimilira ma sulfurtic acid. Chifukwa chake, m'zaka 30 zapitazi, zagwiritsidwa ntchito kwambiri zachilengedwe zachilengedwe monga mbewu zamankhwala, petrochemicals, ma persulizage, zamkati, makampani am'mapepala, komanso kuteteza chilengedwe.