Monel 400 (N04400) Monel alloy corrosion kuj
Monel 400
Khoom siv: Monel 400 (Monel) alloy
Teb Chaws Asmeskas Qib: UNS N04400
German hom: 2.4360
1. Monel 400 (N04400) Txheej txheem cej luam ntawm Monel alloy:
Monel 400 (N04400) Monel alloy yog ib qho corrosion-resistant alloy nrog kev siv loj tshaj plaws, kev siv ntau tshaj plaws, thiab cov khoom zoo heev. Cov hlau no muaj kev tiv thaiv zoo heev hauv hydrofluoric acid thiab fluorine gas media, thiab kuj muaj kev tiv thaiv zoo heev tiv thaiv cov kua kub concentrated alkali. Nws kuj tseem tiv taus corrosion los ntawm cov kev daws teeb meem nruab nrab, dej, dej hiav txwv, huab cua, organic compounds, thiab lwm yam. Ib qho tseem ceeb ntawm cov hlau no yog tias nws feem ntau tsis tsim kev ntxhov siab corrosion tawg thiab muaj kev ua haujlwm zoo.
Cov tshuaj muaj pes tsawg leeg ntawm Monel400 alloy yog tsim los ntawm 30% Cu thiab 65% Ni ntxiv rau ib qho me me ntawm Fe (1%-2%). Lub koom haum qauv yog ib qho qauv ib-theem austenite. Txij li thaum npib tsib xee thiab tooj liab tuaj yeem yaj ib leeg rau hauv ib qho kev faib ua feem, feem ntau tsis muaj nag lossis daus theem. Thaum soj ntsuam cov qauv ntawm cov hlau no nyob rau hauv tsis-etching tej yam kev mob nyob rau hauv ib tug metallographic microscope, nws yuav pom tau hais tias muaj dispersed non-metallic inclusions, xws li sulfides thiab silicates, nyob rau hauv lub austenite matrix. Nyob rau hauv tej yam kev mob, lub xub ntiag ntawm carbides kuj yuav raug soj ntsuam. Vim muaj qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, nws tuaj yeem muaj ntau yam ntawm cov qib alloy, tab sis tsis muaj qhov sib txawv tseem ceeb hauv corrosion kuj ntawm lawv. Monel400 alloy tiv taus corrosion ntau dua los ntawm kev txo cov xov xwm ntau dua li cov npib tsib xee ntshiab, thiab tiv taus corrosion ntau dua los ntawm oxidizing media dua li tooj liab ntshiab.
2. Monel 400 (N04400) Txheej txheem cej luam ntawm Monel alloy: saib Table-1:
C: Tsawg dua lossis sib npaug rau 0.24
Si: Tsawg dua lossis sib npaug rau 0.5
Mn: Tsawg dua lossis sib npaug 2
S: Tsawg dua lossis sib npaug rau 0.024
Ni: Ntau dua lossis sib npaug rau 63.0
Fe: Tsawg dua lossis sib npaug rau 2.50
Cu: 28.{1}}~34.{3}}
3. Mechanical zog ntawm Monel 400 (N04400) Monel alloy:
1. Monel 400 (N04400) Monel alloy tensile zog: σb Ntau dua los yog sib npaug rau 450Mpa.
2. Monel 400 (N04400) Monel alloy yield zog: σb Ntau tshaj los yog sib npaug rau 170Mpa.
3. Monel 400 (N04400) Monel alloy elongation: δ Ntau dua lossis sib npaug li 30%.
4. Monel 400 (N04400) Monel alloy corrosion kuj:
1. Qhov kev tiv thaiv corrosion ntawm Monel feem ntau zoo dua li cov npib tsib xee thiab tooj liab. Nws tiv taus corrosion ntau dua los ntawm kev txo cov xov xwm tshaj li cov npib tsib xee ntshiab, thiab tiv taus corrosion los ntawm oxidizing media dua li tooj liab ntshiab. Nws muaj kev tiv thaiv zoo heev rau sulfuric acid, phosphoric acid thiab carbon. zoo. Nws yog tshwj xeeb yog resistant rau hydrochloric acid corrosion thiab muaj zoo heev corrosion kuj rau kub concentrated alkali. Monel400 alloy muaj corrosion kuj zoo heev hauv cov roj fluorine, hydrochloric acid, sulfuric acid, hydrofluoric acid thiab lawv cov derivatives.
Nyob rau tib lub sijhawm, nws yog corrosion-resistant ntau dua li tooj liab-raws li alloys hauv dej hiav txwv. Monel400 yog ib qho deformable nickel-tooj liab nickel-raws li alloy. Nws muaj kev tiv thaiv zoo rau seawater corrosion thiab tshuaj corrosion, thiab muaj zog tiv thaiv chloride kev nyuaj siab corrosion cracking. Cov hlau no yog ib qho ntawm ob peb uas tuaj yeem siv tau hauv fluorides. Nws muaj kev tiv thaiv zoo rau oxide kev ntxhov siab tawg corrosion hauv hydrofluoric acid thiab fluorine gas media, xws li dej hiav txwv thiab dej ntsev ib puag ncig. Monel 400 kuj muaj qhov zoo heev corrosion kuj nyob rau hauv nruab nrab concentrated alkaline thiab ntsev daws. Nyob rau hauv qhov chaw txias dua alkaline, cov hlau yog siv rau hauv qhov chaw tsis muaj zog acid xws li sulfur thiab hydrogen fluoride.
2. Acid nruab nrab: Monel400 yog corrosion-resistant nyob rau hauv sulfuric acid nrog ib tug concentration ntawm tsawg tshaj li 85%. Monel400 yog ib qho ntawm ob peb yam khoom tseem ceeb uas tuaj yeem tiv taus hydrofluoric acid.
3. Dej corrosion: Monel400 alloy tsis tsuas yog muaj corrosion kuj zoo heev nyob rau hauv feem ntau cov dej corrosion tej yam kev mob, tab sis kuj pitting corrosion, kev nyuaj siab corrosion, thiab lwm yam yog tsis tshua pom, thiab tus nqi corrosion yog tsawg dua 0.025mm / a .
4. Kub-kub corrosion: Qhov siab tshaj plaws kub ntawm Monel400's nruam kev ua haujlwm nyob rau hauv huab cua yog feem ntau nyob ib ncig ntawm 600 degree . Nyob rau hauv high-temperature chav, tus nqi corrosion yog tsawg dua 0.026mm / a. Ammonia: Vim muaj cov ntsiab lus siab nickel ntawm Monel400 alloy, nws tuaj yeem tiv taus corrosion nyob rau hauv anhydrous ammonia thiab ammonia nyob rau hauv qab 585 degree.
5. Monel 400 (N04400) txhawb cov khoom siv vuam rau Monel alloy:
Monel400 vuam qws (ENiCu-7), Monel400 vuam hlau (ERNiCu-7)
6. Daim ntawv thov thaj chaw ntawm Monel 400 (N04400) Monel alloy:
Marine heat exchangers, desalination khoom, khoom siv ntsev ntau lawm, marine thiab chemical processing equipment, propeller shafts and water pumps, gasoline and water tanks, etc.
7. Ntau yam, specifications thiab muab cov xwm txheej ntawm Monel 400 (N04400) Monel alloy:
1. Ntau yam kev faib tawm: Shanghai Longji tuaj yeem tsim ntau yam tshwj xeeb ntawm Monel400 seamless kav, Monel400 steel daim hlau, Monel400 round steel, Monel400 forgings, Monel400 flanges, Monel400 rings, Monel400 welded kav, Monel400 steel strips, Monel40 khoom txhawb nqa.
2. Kev xa khoom raws li txoj cai: Seamless yeeb nkab: khoom tov + kua qaub dawb, ntev tuaj yeem kho; phaj: khoom tov, pickling, trimming; welded yeeb nkab: khoom tov acid whitening + RT% flaw detection, forging: annealing + polishing; Cov tuav yog nyob rau hauv forged thiab dov lub xeev, nto polished los yog polished; strips yog txias dov, tov mos, thiab descaled; cov xaim xaim xaim xaim nyob rau hauv cov tshuaj pickled disk duab los yog ncaj strip zoo, cov khoom tov ncaj strip zoo sib tsoo Tus me nyuam nyob rau hauv lub teeb
