Tp347 ni icyuma gikozwe muri austenitic stainless steel gishyigikiwe na columbium. Kongeramo columbium bituma iyi stainless grade ikora neza cyane iyo ikoze muri oxidation nyinshi mu gihe cy'ubushyuhe bwinshi buri kuri dogere selisiyusi 800.
TP347H (UNS S3409) ni urwego rw'icyuma kitagira umugese cya TP347 gifite ingano ya karuboni nyinshi (0.04 - 0.10)
347H ifite ubudahangarwa bwiza ku bushyuhe buri hagati y’uduce duto, kandi ifite ubudahangarwa bwiza ku bushyuhe buri mu mazi ya alkali, mu nyanja no mu buryo butandukanye bwa aside. Bitewe no kudahangarwa neza n’ubushyuhe no kudahangarwa neza n’umwuka, ishobora kwihanganira imitwaro mito ku bushyuhe buri munsi ya dogere 850.
Ingano y'umuyoboro w'amazi:TP347, AISI 347, EN 1.4550, UNS S34700
Ubwoko bw'umuyoboro:Nta muvuduko
Ifishi y'umuyoboro w'amazi:Ibice bigororotse, bicuramye, biciwe kugeza ku burebure