Alloy 725 ni imvura igwa, nikel-fatizo itanga imbaraga zidasanzwe zo kurwanya ihungabana ryangirika hamwe no gutobora muri rusange hamwe no kwangirika kwangirika mumyaka imeze nabi.Hamwe no kurwanya ruswa isa na 625 kandi iruta iya 718, 725 ifatwa kubisabwa aho ibidukikije byangirika bikabije.Imbaraga z'umusaruro (0.2% offset) hejuru ya 120 ksi (827 MPa) urashobora kuboneka mugusaza utabanje gukora ubushyuhe cyangwa ubukonje.Ubushobozi bwo kugwa bwimvura ningirakamaro cyane mubisabwa aho ingano nini-nini cyangwa imiterere itoroshye ibuza gukora ubushyuhe.
Amavuta | % | Ni | Cr | Fe | Mo | P | Nb | C | Mn | Si | S | Al | Ti |
725 | Min. | 55.0 | 19.0 | kuringaniza | 7.0 | - | 2.75 | - | - | - | - | - | 1.0 |
Icyiza. | 59.0 | 22.5 | 9.5 | 0.015 | 4.0 | 0.03 | 0.35 | 0.2 | 0.01 | 0.35 | 1.7 |
Ubucucike | 8.3 g / cm³ |
Ingingo yo gushonga | 1271-1343 ℃ |
Imiterere | 0.2% Gutanga Imbaraga | Imbaraga Zirenze | Kurambura muri 4D | % Kugabanya Agace | Gukomera kwa Brinell HB | HRC | |||
ksi | MPa | ksi | MPa | Ibice | J | ||||
Igisubizo | 47 | 324 | 117 | 806 | 70 | 72 | - | - | 28 |
Igisubizo Annealed + Gusaza | 134 | 923 | 186 | 1282 | 33 | 51 | 87 | 118 | 35 |
Akabari / Inkoni | Umugozi |
ASTM B 805, Urubanza rwa ASME Urubanza 2217,Ibisobanuro bya SMC HA91, Kode ya ASME Urubanza 2217 | ASTM B 805, Urubanza rwa ASME Urubanza 2217 |
•lron-nikel-chromium-molvbdenum-niobium ishingiye ku mavuta, kurwanya neza imiti myinshi yangiza.Kurwanya cyane kwangirika, gutobora, no guhagarika umutima mubidukikije birimo karuboni ya dioxyde, chlorine na hydrogen sulfide. Kurwanya ruswa yangiza ibidukikije birimo imiti ya aside. Kurwanya ruswa nziza kumazi ninyanja.
•Kurwanya ruswa nziza kubushyuhe bwo hejuru.nk'umusaruro wa peteroli na gaze.aho amavuta afite imbaraga zo kurwanya ruswa ya H2S.
Ibikoresho hamwe nibindi bice kubikoresho bisaba kurwanya cyane imiti ya aside cyangwa ibidukikije.Ibice cyangwa equioment ikoreshwa mubihe byinyanja