Alloy 725 ke motsoako o thata oa lipula, oa nickel-base alloy o fanang ka khanyetso e ikhethang khatellong ea khatello ea maikutlo le ho putlama ka kakaretso le mapheo a matle nakong ea boemo bo thata.Ka khanyetso ea kutu e ts'oanang le 625 mme e phahametse ea 718, 725 e nkuoa bakeng sa lits'ebetso moo ho amehang tikoloho e senyang haholo.Matla a lihlahisoa (0.2% offset) ka holimo ho 120 ksi (827 MPa) e ka fumanoa ka botsofali ntle le ho sebetsa ka mofuthu kapa ho bata pele.Bokhoni ba ho thatafatsa pula bo bohlokoa haholo lits'ebetsong moo boholo ba karolo e kholo kapa sebopeho se rarahaneng se thibelang ho sebetsa ka mofuthu.
Alloy | % | Ni | Cr | Fe | Mo | P | Nb | C | Mn | Si | S | Al | Ti |
725 | Min. | 55.0 | 19.0 | tekatekano | 7.0 | - | 2.75 | - | - | - | - | - | 1.0 |
Max. | 59.0 | 22.5 | 9.5 | 0.015 | 4.0 | 0.03 | 0.35 | 0.2 | 0.01 | 0.35 | 1.7 |
Botenya | 8.3 g/cm³ |
Sebaka se qhibilihang | 1271-1343 ℃ |
Boemo | 0.2% Matla a Puno | Matla a ho qetela a Tensile | % Ho lelefatsa ka 4D | % Phokotso ea Sebaka | Ho thatafala ha Brinell HB | HRC | |||
ksi | MPa | ksi | MPa | Ft.-lbs | J | ||||
Tharollo e Eketsehile | 47 | 324 | 117 | 806 | 70 | 72 | - | - | 28 |
Tharollo Annealed + Ho tsofetse | 134 | 923 | 186 | 1282 | 33 | 51 | 87 | 118 | 35 |
Bara/Molamu | Mohala |
ASTM B 805, ASME Code Case 2217,Tlhaloso ea SMC HA91, ASME Code Case 2217 | ASTM B 805, ASME Code Case 2217 |
•lron-nickel-chromium-molvbdenum-niobium based alloy, e hanyetsanang hantle le mefuta e mengata ea lik'hemik'hale tse senyang.Haholo e hanyetsanang le kutu, pitting, le khatello ea maikutlo ho phunyeha ha khatello ea kelello tikolohong e nang le carbon dioxide, chlorine le hydrogen sulfide.Outstanding corrosion resistance for the environments with acidic chemicals.Good corrosion resistance for brine and seawater.
•Ho hanyetsa kutu e ntle ha ho sebelisoa mocheso o phahameng.joalo ka tlhahiso ea oli le khase.moo motsoako o nang le khanyetso e ntle ho corrosion ea H2S.
Li-bearings le likarolo tse ling tsa lisebelisoa tse hlokang khanyetso e phahameng ho lik'hemik'hale tse nang le acidic kapa tikoloho.Likarolo kapa sesebedisoa se sebedisoang maemong a mawatle