I-Material Alloy Steel ASTM A333 Ibanga 3, ibanga lesi-6, ibanga lesi-8, ibanga 9
Amapayipi e-A335 P9 enziwe ngensimbi ye-Ferritic Alloy yezinhlelo zokusebenza eziphezulu zokushisa. I-SA335 P9 P9 ngamakhemikhali aqukethe izinsimbi ezifana ne-molybdenum ne-chromium engezwe ku-alloy. Ngokungeza izinsimbi ezifana ne-molybdenum ne-chromium, amandla ashubile e-alloy ayanda. Amandla okuvutha wepayipi le-a335 p9 welded lingu-205 MPA, kanti amandla alo ashubile angu-415 MPA. Ukugcwala kwepayipi kucishe kube ngu-30%.
I-Chromium-Molybdenum Alloy Steel inokumelana okuqinile kokuqhekeka ngaphansi kokushisa okuphezulu kanye nengcindezi ephezulu. I-Chromium Molybdenum nayo iyamelana nokuhlaselwa kwe-hydrogen kanye nokuqhekeka okushisayo kwe-sulfide corlosion. Ngasikhathi sinye, i-A182 F11 F11 F11 Flange yensimbi iyindlela yokuxhuma amapayipi, amaphampu, ama-valve nezinye izinsimbi ukwakha uhlelo lwamapayipi. Kungahlanzwa kalula, kuhlolwe noma kuguqulwe. Ukuhlanganiswa kwalo kwenziwa ngokubhidliza ama-flanges amabili kanye ne-gasket phakathi kwabo ukunikeza uphawu.