Qib Kawm Molybenum-muaj cov qhab nia, thib ob tsuas yog 304 hauv qhov tseem ceeb hauv kev siv tshuaj tiv thaiv tsis siv. Piv rau 304, Molybdenum imparts zoo dua tag nrho corrosion tsis kam rau 316, tshwj xeeb tshaj yog ntau dua rau pitting thiab crevice corrosion hauv chloride ib puag ncig.
Lub alloy yog forged nruab nrab ntawm 2250 \ / 1750of (1230 \ / 955oc) thiab tom qab ntawd ingch ntawm billet lossis ingot ntu thickness. Forging yuav tsum tau pib tam sim ntawd, lub npe raug tshem tawm los ntawm kev rov ua kom rov qab cua, ib txog 25% pab khaws cia kom muaj cua sov ntau li ntau tau. Rau qhov zoo corrosion tsis kam, forged qhov chaw yuav tsum tau ib qho anealed tom qab. Saib kev kho cua sov.
Lub Austenitic stainless hlau 6MO tau tsim los ntawm lub hauv paus ntawm alloy 904l \ / 1.4539. Txawm li cas los xij, cov ntsiab lus molybdenum ntawm 6mo yog nce rau 6,5%. 6MO muaj qhov dav dav corrosion tsis kam thiab txhim kho pitting thiab crevice corrosion tsis kam. Kuj yuav muaj kev ntxhov siab corrosion cracking kuj tau txhim kho. Nws yog feem ntau hu ua super ustenitic stainless hlau.
Monel 400 yog resistant rau chav thiab dej hiav txwv raws li cov kev daws teeb meem zoo li cov sulfuric, hydrofluoric acids tom qab degassing. Nws muaj zoo heev solderability thiab tuaj yeem tiv taus ntau qhov siab thiab qhov hnyav. Lub alloy muaj cov tshuab ua haujlwm zoo tshaj plaws ntawm cov tshuab teev, nrog lub ntsej muag melting ntawm 2370¡Ã - thiab cov khoom lag luam tuaj yeem siv nyob rau ntawm qhov kub txog 1000,000 C.
ASTM A193 B7 Bolts yog tsim kom tau raws li cov neeg muaj kev qhia ntau thiab cov khoom tsim qauv. Ntau dua tshwj xeeb, B7 Alloy Alloy yog qhov kub ntawm qib kawm-193. B7 steel kuj tseem yog chromium molybdenum hlau nrog tsawg kawg tensile lub zog ntawm 125ksi.
Zoo li ntau lwm tus nickel alloys, nws yog ducat thiab yooj yim rau daim ntawv thiab weld. Qhov no alloy yog siv nyob rau hauv ib puag ncig muaj kev lag luam uas muaj ib puag ncig corrosive swb.
Cov hlau cov hlau yog hom tshwj xeeb ntawm cov hlau uas, raws li lub npe qhia, muaj cov ntsiab lus muaj roj carbon ntau dua li lwm hom hlau. Feem ntau ntawm cov hlau muaj cov ntsiab lus muaj roj carbon tsawg, nyob ib ncig 0.05% rau 0.3%. Hauv kev sib piv, Carbon Steel muaj cov ntsiab lus carbon txog li 2.5%. Nees nkaum thiab ib nrab feem pua cov pa roj carbon yuav tsis tseem ceeb, tab sis nws coj ntau cov txiaj ntsig txaus nyiam tsis tau pom lwm qhov.
Alloy C-276 tau tiv thaiv zoo heev rau pitting thiab kev ntxhov siab corrosion tawg. Nws tseem yog ib qho ntawm ob peb cov ntaub ntawv uas tuaj yeem tiv taus cov kev mob corrosive ntawm ntub dej chlorine, hypochlorite thiab chlorine dioxide.
ASTM A193 Qib B7 Cov Kev Siv Cov Hlau Hlau Kev Siv Rau Cov Khoom Siv Loj Rau Cov Khoom Siv Kub thiab Kev Siv Lub Hom Phiaj Tshwj Xeeb. Nws yog tus qauv cov tshuaj tshwj xeeb uas cov tshuaj lom neeg muaj ntau yam tshuaj lom neeg, cov khoom siv tau ua rau muaj kev pab kub, thiab lwm yam kev xav tau rau cov khoom siv siab kub, thiab lwm yam kev xav tau rau cov khoom siv siab kub ASTM A193 txhais txog Si (metric) thiab nti ua phaus units.
Alloy C276 yog npib tsib xee, chromium thiab molybdenum alloy. Hastelloy C276 yog tsim los rau kev txhim kho corrosion zoo nkauj thiab oxidation tsis kam nyob rau ntau qhov chaw ib puag ncig. Cov alloys kuj tseem pom tsis kam rau pitting thiab crevice corrosion.
ASTM A193 B7 rau cov ntawv thov kub siab, b7 steel yog nyob rau hauv siab vim yog nws lub zog tensile thiab cov cua sov ua tau zoo heev. Nws yog siv rau hauv cov kev siv kub siab thiab kev siab siab siab, suav nrog kev lag luam thiab ua haujlwm qhov chaw kub thiab nias tau mus txog. Kev lag luam siab thiab cov roj nyob hauv cov roj thiab roj kev lag luam, cov chaw siv tshuaj thiab roj av thiab cov pa roj hmab flange sib txuas tau rau B7.
304 yog chromium-npib tsib xee ustenitic steel hlau. Zoo dua corrosion tsis kam ntau dua hom 302. Kev du me me, kev kos duab zoo heev, kev sib sau thiab kev sib txuas. Inherently tsis muaj kev sib nqus, nws ua cov hlau nplaum me ntsis thaum ua haujlwm txias. Cov pa roj carbon qis txhais tau tias tsawg los ntawm cov neeg muaj nag lossis daus hauv cov cua sov nyob rau hauv lub tshuab cua sov nyob rau hauv cov pa kub.
Lub siab nickel cov ntsiab lus ntawm inconel 600 (tsawg kawg 72% npib tsib) ua ke nrog cov ntsiab lus chromium muab ntau cov npe ntawm Nickel alloy 600.
Nimonic 80 A (Alloy 80a) yog ib qho ntawm cov superalalloys tshaj plaws teev rau cov roj turbines. Nimonic 80a fasteners feem ntau tau teev vim tias lawv muaj peev xwm tiv taus ntau kub heev. Qhov no ua rau nimonic bolts thiab txiv ntoo zoo tagnrho rau kev siv nyob rau hauv lub dav hlau tshuab, los ntawm nimonic fasteners muaj rau theem siab ntawm siab thiab kub.
A182 Hlau 2507 Hex Bolts Ob Chav Xeem Ob Chav Kawg 32750 F55 S32750 Stud Hex Bolt Bolt Txiv Ntseej Washer
Stud ntsia liaj qhov rooj, hex ntsia liaj qhov rooj, hex bolt nrog ib qho xov nrog tag nrho cov xov, hex txiv ntoo cak ntsia hlau, hex txiv ntoo, tiaj tus washer, tiaj ntxuav. - Zhengzhou Huitong Pipeline Equipment Co., Ltd.
Duplex 2507 yog super duplex stainless hlau muaj 25% chromium, 4% molybdenum thiab 7% npib tsib xee. Cov alloy no tsim rau cov ntawv thov uas yuav tsum tau muaj lub zog zoo thiab corrosion tsis kam.
Hastelloy C-276 Alloy tau tiv thaiv zoo heev rau ntau yam tshuaj lom neeg ib puag ncig (xws li acetic acid, acetic anhydride, thiab dej hiav txwv thiab dej hiav txwv.
Nws tuaj yeem siv tau rau hauv flue roj desulfurization tshuab vim nws qhov zoo tshaj plaws rau cov kab mob sulphur thiab chloride ions feem ntau cov tu menyuam yaus.
Lub lauj kaub taub hau YIAS taub hau yog qhov uas tsis yog-suav lub taub hau ntsia hlau siv rau kev nyab xeeb thiab ruaj khov. Lawv muaj lub taub hau dav, cov kabmob tiaj tiaj, thiab ib lub tiaj lossis me ntsis domed saum npoo nrog dimples.
Stainless hlau 1.452529 hcr yog cov cim los ntawm lub zog corrosion, pitting corrosion, pitting corrosion, pitting corrosion lossis chlorine-indents kev nyuaj siab corrosion. Nws tseem ua rau cov khoom ua pov thawj zoo heev thiab tuaj yeem siv dhau ntawm qhov ntsuas kub ntau. Nws muaj elasticity zoo thiab puas tsis kam nyob rau hauv kev chwv nrog sulfuric lossis phosphoric acid, lossis chlorides thiab ntsev.
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Vuam ntawm cov alloy no zoo ib yam li ntawm C-22 Alloy. Roj Tungsten Arc Vuam (GTAW) thiab cov thaiv hlau arc vuam (smaw) feem ntau siv rau weld c-276 alloys.
ASTM A193 B7 yog chromium molybdenum alloy steel. B7 ua tiav nws lub zog los ntawm kev kho ua kom sov uas yog quenched thiab tempered ntawm 1150 degrees Fahrenheit.
Nws raug nquahu tias lub alloy tau welded nyob rau hauv kev daws anealed mob nrog C-276 tub muab tub lim hlau.
Hastelloy (R) C276 yog daws cov cua sov kho thaum 1121¡ÃC (2050¡ÃF) thiab tom qab ntawd nrawm nrawm. Nyob rau hauv cov ntaub ntawv forging lossis kub forming, ntu yuav tsum tau daws qhov kub kho ua ntej siv.
Nws cov ntsiab lus Chromium ua rau cov Alloy tiv taus cov neeg Sulphur cov tebchaw thiab ntau oxidizing ib puag ncig. Cov ntsiab lus Chromium ntawm cov alloy ua rau nws zoo dua rau kev lag luam nickel hauv qab oxidizing tej yam kev mob. Hauv cov kev daws teeb meem zoo xws li kub concentrated nitric acid, 600 yog tsawg tiv taus. Alloy 600 yog kev tiv thaiv kom huv rau feem ntau nruab nrab thiab alkaline ntsev cov kev daws teeb meem thiab yog siv nyob rau qee qhov chaw muaj kev nyab xeeb. Cov Alloy yog resistant rau chav thiab sib tov ntawm cov chav, huab cua thiab carbon dioxide.
Hex Bolts yog siv los ua kom nrawm ob lossis ntau qhov chaw ua ke los tsim ib qho kev sib txoos ua vim tias nws tsis tuaj yeem tsim kho thiab kho Disassembly. Los ntawm txhais "ib lub ntsia liaj qhov rooj yog ib lub taub hau thiab sab nraud tshuab tsim rau cov txiv neej nrog cov txiv ntoo thiab ib txwm yog npaj los nruj lossis tso tawm los ntawm tig los ntawm txoj kev txwv ntawd." Thaum siv nrog qhov ua ntej tshaj tawm sab hauv threated (tapped) qhov, tus hex kis rau kev sib tham txog qhov sib txawv ntawm cov bolts thiab screws). Hex bolts tseem hu ua: hex taub hau bolts, hex lub taub hau tshuab bolts, hex bolts, hex lub taub hau bolts thiab hex taub hau kais bolts. Lub taub hau hex feem ntau sib txawv los ntawm cov ntsia hlau hex los ntawm tus thawj coj hauv ntej: Yog tias nws muaj cov ntsia hlau tshuab hluav taws xob, nws tsis yog nws yog hex bolt.
