A283 txhais thiab cov yam ntxwv tseem ceeb ntawm Gr.C cov khoom siv
Txhais:
A283 Gr.C (piv txwv li sa283grc) yog ib qho hluav taws xob hlau ua raws li cov khoom lag luam nruab nrab, uas yog cov qauv tsim hauv nruab nrab, tsev tsim khoom thiab cov tshuab dav dav. Cov khoom tseem ceeb.
Cov Khoom Tseem Ceeb:
Compositional tshuav nyiaj li cas:
Tshuaj lom neeg muaj pes tsawg leeg (ASTM Txuj Ci):
Cov pa roj carbon (c) Tsawg dua lossis sib npaug rau {{{{}}}}}}. 24%, phosphorus (p) tsawg dua lossis sib npaug rau 0.035%.
Tsawg cov ntsiab lus cov ntsiab lus kom ntseeg tau weldability, manganese ntsiab los txhim kho lub zog thiab tawv.
Cov Khoom Siv Neeg Kho Tshuab:
Lub zog tensile: {380-515 mpa mpa
Paib lub zog: ntau dua los yog sib npaug rau 205 MPa
Elongation (50mm nplai): ntau dua lossis sib npaug nrog 22% {2}}%.
Cov txheej txheem zoo:
Weldability: packentional arc vuam tsis muaj preheating, txo tus nqi.
Kev tsim nyog: Haum rau stamping, dabtsi yog khoov, txiav thiab lwm yam kev ua, cov cuab yeej siv tsis tau.
Corrosion Kuj: Cov kev tiv thaiv saum npoo tuaj yeem txhim kho los ntawm galvanizing lossis pleev xim rau lub neej pabcuam ntev.
Cov chaw ntawm daim ntawv thov
A283 Gr.C cov khoom siv tau dav siv nyob rau hauv cov xwm txheej hauv qab no:
Siab nkoj: nruab nrab thiab qis siab reactors, kev hloov cua sov, liquefied roj tso tsheb hlau, thiab lwm yam.
Vaj tse thiab choj: kab teeb, kab, kab ntawv, choj lawj thiab lwm cov txheej txheem txheej txheem los xyuas kom muaj kev ruaj ntseg ntawm lub nra.
Nkoj thiab Machinery Raug: Hulls, Decks, Tshuab Khoom Siv Tshuab Thiab Cov Kabmob, Etc.
Cov Khoom Siv Zog: Boiler Qhov, Turbine Plhaub thiab Chaw Nres Tsheb Hluav Taws Xob ntu.
Cov Qauv thiab Cov Khoom Uas Yuav Tsum Tau
Cov qauv ua tiav: ASTM A283 / A283m, ntaub npog cov khoom siv tshuaj xyaw, cov khoom siv mechanories thiab cov qauv ntsuas.
Tus mob xa tuaj: Feem ntau xa hauv kub dov los yog cov kev ua ub no kom tau raws li kev ua haujlwm sib txawv.
Xaiv thiab siv kev txiav txim siab
Siv tau siab siab ntau: pom zoo kom siv rau hauv cov nruab nrab ntawm cov nruab nrab (piv txwv li tsawg dua lossis sib npaug) kom tsis txhob muaj kev ntxhov siab.
Vuam thiab anticorrosion: ntxuav cov vuam slag tom qab vuam, thiab cov npoo yog pom zoo kom tau pleev xim rau corrosion tsis kam.
Kev txwv: Tsis txhob siv nyob rau hauv huab tsis muaj kub lossis siab poob siab thauj khoom los tiv thaiv cov khoom embrittlement.
