Ukuvelisa i-Asme esemgangathweni B36.10 Asme B36.39
Ngelixa i-chromium yiarhente ebalulekileyo kwi-A335 P91, iyaziwa ukuthintela ukuvela kwaye ixhathise kakhulu kwi-oxidotion kwiqondo lobushushu ephezulu. Kuba la mapipe anyangwa okanye idityanisiwe, nayo ikhuselekile. Ukudibana komhlaba kunokuphunyezwa ngeendlela ezahlukeneyo ezinjengokuthengiswa, phosproting, ukuntywila kweoyile, i-varniyang kunye nokudubula kunye nokudubula kunye nokudubula kunye nokudubula.
Ngokuthetha ngokungqongqo, yonke intsimbi yi-alloy, kodwa ayizizo zonke iinsimbi ezibizwa ngokuba yi "Aloty Steels". I-tils elula yintsimbi (Fe) ye-carbon (c) (malunga ne-0.1% ukuya kwi-1%, kuxhomekeka kuhlobo) kwaye ngaphandle kokungcola okungathandekiyo); Oku kubizwa ngokuba zii-carbon steels. Nangona kunjalo, ibinzana elithi "intsimbi yentsimbi" ligama elisesingaphantsi libhekisa kwizitithi kunye nezinye izinto ezalisekayo zongeze ngabom ukongeza kwikhabhoni. I-Anekabantu abaqhelekileyo iquka i-manganese (eyona ixhaphakileyo), i-nickel, iChckel, i-molybdenum, i-dadicon, neBoron. I-Anekabantu eliqhelekileyo eliqhelekileyo libandakanya i-aluminium, i-cobabalt, ubhedu, i-tirium, i-tinanium, i-titanium, i-tinten, i-tin, i-tinc, i-zinconsium.
Ukuxhathisa i-corrosion ye-P 335 P91 i-pipe engenamthungo iphakame kakhulu kunelo yensimbi yekhabhoni. Ibanga P91 lisalathiso lokuqulunqwa kwemichiza ye-alloy ye-alloy. Intsimbi ye-chromium-molybdenum, ukwakhiwa kweekhemikhali ze-ASTM A335 P91 P91 p91 i-Alound ye-9% ye-chromium kunye ne-1% molybdenum kunye ne-dadium.