I-Allowts ezingama-20 zenziwe ukusuka eNichrome ngokuqulunqwa kwe-32.5% ye-NCECEL, i-19% ye-Chromium, iCarbon, Molybdenum, Manganese, i-silicon nentsimbi. I-Alloy 20 yi-nickel-chromium-chiromium-molybdenum stainess yentsimbi ephuculweyo kwizicelo ezibandakanya i-SulFuric Acid. Ukungaxhathisi kwayo kukufumana ezinye izinto eziguquguqukayo nazo kufumanisa ezinye izinto kwikhemikhali, ukutya, amayeza kunye nemizi-mveliso yeplastiki. I-Alloy 20 iyathintela i-pirsts kwaye i-chloride yosulelo, kwaye umxholo wobhedu luyayikhusela kwi-sulfuric acid. I-Alloy 20 ayisiyo-ss, kodwa i-nickel alloy (i-ASTM).