SA 387 Gr 22 CL 2 Boiler Phaj Hlau

SA 387 Gr.22 Cl.2yog hais txog ASTM A387 Qib 22 Chav Kawm 2 chromium-molybdenum alloy steel phaj, SA 387 GR.22 CL.2 PLATE muaj chromium ntawm 2.25% thiab molybdenum ntawm 1% thiab muaj peev xwm ua haujlwm hauv 600 Deg C kub nyob ib puag ncig zoo. Cov molybdenum thiab chromium steel daim hlau ua haujlwm zoo ntawm qhov kub sib txawv txuas ntxiv muab kev ua tau zoo tshaj plaws. Qhov sib ntxiv ntawm molybdenum hauv SA 387 alloy yog ua kom lub zog tensile ntawm daim hlau ntawm qhov kub ntau dua. Tsis tas li ntawd, nws muab kev tiv thaiv corrosion zoo heev thiab oxidation ib yam nkaus los ntawm kev ua kom cov hlua khi. Qhov no ua tau zoo txwv tsis pub tus neeg sawv cev corrosive los ntawm cov hlau yaj thiab muab cov cua sov ua kom muaj peev xwm zoo thiab dhau los ua qhov kev xaiv zoo rau cov pa roj ib puag ncig. Tsis tas li ntawd, nws muaj qhov zoo weldability. Yog li, lub phaj no yog xav tau heev thoob ntiaj teb.

Specifications rau ASME SA387 Qib 22 Alloy Steel Phaj

Tensile Requirements rau ASME SA387 Qib 22 Alloy Steel Phaj Chav Kawm 2 Phaj

Cov Khoom Siv Tshuaj Rau ASME SA387 Qib 22 Alloy Steel Phaj

Cov ntawv thov tseem ceeb thiab kev lag luam tso siab rau SA 387 Qib 22 Chav Kawm 2

ASTM A387 GR 22 CL 2 Alloy Steel Phaj siv nyob rau hauv ntau qhov kev lag luam thiab cov hom phiaj dav dav xws li kev ua zaub mov, roj & roj, marine, petrochemical, thiab roj ua lag luam.

ASTM A387 GR 22 CL 2 Alloy Steel Phaj nws siv ntau yam kev lag luam xws li Lub Nkoj Siab Zoo Zoo rau kev tsim cov hlab ntsha siab uas ua haujlwm ntawm qhov kub siab, xws li cov khoom siv tshuaj thiab petrochemical industries thiabBoilerFeem ntau siv rau hauv kev tsim cov boilers thiab cov cua kub exchangers, qhov twg cov khoom muaj siab - kub lub zog thiab tiv thaiv oxidation yog ib qho tseem ceeb thiab lub zog tsim siv nyob rau hauv lub hwj chim nroj tsuag rau cov khoom xws li chav headers thiab turbine casings, uas yuav tsum tau txhim khu kev qha nyob rau hauv siab thermal stress thiab roj thiab roj kev lag luam Siv nyob rau hauv lub fabrication ntawm piping systems, reactors, thiab cia tank.

Kev ntsuam xyuas daim hlau ntawm SA 387 Qib 22 Chav Kawm 2

Ntau yam kev ntsuam xyuas yog qhov tseem ceeb tshaj qhov tseem ceeb los ntawm cov neeg tsim khoom txhawm rau kom paub tseeb tias cov phaj muab khoom tsis muaj qhov yuam kev. Kev ntsuam xyuas yog ua los ntawm cov kws tshaj lij los ntawm kev siv cov cuab yeej tshiab thiab niaj hnub no. Cov kev ntsuam xyuas ua tiav yog cov khoom siv txheeb xyuas qhov zoo, ntsuas qhov nyuaj, ntsuas kev sib xyaw ua ke, kev sib tw / flaring, macro / micro test, tshuaj ntsuam xyuas, pitting resistance test thiab mechanical test.

Cov Lus Qhia rau Kev Ua Haujlwm nrog SA 387 Qib 22 Chav Kawm 2

Alloy Steel daim hlau yog siv dav hauv ntau qhov kev lag luam vim lawv cov khoom siv zoo tshaj plaws thiab tsis kam hnav, corrosion, thiab kub kub. Thaum lub tuam txhab pib sib sau los yog tsim cov khoom lag luam lossis thiab sib sau ua ke lub hom phiaj kom nws lub tuam txhab yuav tsum ua raws li qee cov cai thiab cov cai xws li Cov Khoom Siv Xaiv thiab Tsim thiab Kev Qhia thiab Fabrication Vuam lossis Kev Tswj Xyuas Zoo thiab Kev Ntsuas lossis Kev Tiv Thaiv Corrosion, Kev Saib Xyuas thiab Kev Tshuaj Xyuas, Kev Nyab Xeeb thiab Kev Ua Raws Cai, thiab Lub Tuam Txhab Saib Xyuas Ib Cheeb Tsam yuav tsum nruj me ntsis ua raws li tag nrho cov khoom no Ntawm no yog qee qhov kev siv tau zoo thiab kev nyab xeeb.

Hu rau tam sim no

Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.

SA 387 Qib 22 Chav Kawm 2 yog dab tsi?

SA 387 Qib 22 Chav Kawm 2 yog chromium-molybdenum alloy steel phaj teev nyob rau hauv ASTM A387/A387M, feem ntau yog siv rau lub nkoj siab thiab boiler daim ntaub ntawv uas yuav tsum tau zoo creep zog thiab kub kuj.

Dab tsi yog cov tshuaj muaj pes tsawg leeg ntawm SA 387 Gr. 22 Cl. 2?

Nws feem ntau muaj nyob ib ncig ntawm 2.00% chromium, 1.00% molybdenum, nrog rau kev tswj hwm ntawm carbon, manganese, silicon, phosphorus, thiab sulfur. Qhov muaj pes tsawg leeg yuav tsum ua raws li cov kev txwv hauv ASTM A387 / A387M.

Dab tsi yog cov yam ntxwv ntawm SA 387 Gr. 22 Cl . 2?

Cov khoom muaj xws li lub zog tensile yam tsawg kawg nkaus ntawm 415-585 MPa, qhov tsawg kawg nkaus yield zog ntawm 205 MPa, thiab elongation ntawm 22% yam tsawg kawg nkaus. Chav Kawm 2 yuav tsum muaj kev ntsuam xyuas ntxiv ntawm qhov ntsuas kub qis dua piv rau Chav Kawm 1.

Dab tsi yog qhov txawv ntawm SA 387 Gr. 22 Chav Kawm 1 thiab Chav Kawm 2?

Lub ntsiab sib txawv yog nyob rau hauv tej yam toughness yuav tsum tau. Chav Kawm 2 yuav tsum tau Charpy V- ntsuas qhov cuam tshuam ntawm qhov ntsuas kub qis (feem ntau yog 0℃F lossis -18 degree), kom ntseeg tau tias muaj zog dua rau kev thov ntau dua.

Dab tsi yog qhov siab tshaj plaws thickness rau SA 387 Gr. 22 Cl. 2 daim hlau?

Tus qauv tso cai rau ntau qhov tuab, tab sis qhov siab tshaj plaws yog nyob ib puag ncig 150 mm lossis ntau dua, nyob ntawm qhov chaw tsim khoom muaj peev xwm thiab kev kho cua sov.

SA 387 Gr. 22 Cl. 2 txawv ntawm SA 387 Gr. 11 Cl. 2 li cas?

SA 387 Gr. 22 Cl. 2 yog 2.25Cr-1Mo steel, hos SA 387 Gr. 11 Cl. 2 yog 1.25Cr-0.5Mo steel. Cov ntsiab lus chromium thiab molybdenum siab dua hauv Gr. 22 muab qhov zoo dua siab dua -kub lub zog, nkag siab, thiab oxidation kuj, tshwj xeeb tshaj yog nyob rau hauv kev pab ntev tshaj 500℃. Qhov no ua rau Gr. 22 zoo dua rau refinery heaters, transformers, thiab high-temperature reactors, whereas Gr. 11 feem ntau yog siv nyob rau hauv tsawg heev kub tej yam kev mob. Tsis tas li ntawd, Gr. 22 feem ntau yuav tsum tau preheat ntau dua thiab PWHT thaum vuam vim nws hardenability ntau dua.

Dab tsi yog qhov toughness txawv ntawm SA 387 Gr. 22 Cl. 1 thiab Cl. 2?

Qhov sib txawv tseem ceeb yog nyob rau hauv Charpy V- qhov yuav tsum tau muaj kev cuam tshuam. SA 387 Gr. 22 Cl. 2 yuav tsum ua kom tau raws li cov txheej txheem kev cuam tshuam hnyav ntawm qhov kub qis (feem ntau yog 0℃F lossis -18 degree), hos Cl. 1 raug kuaj ntawm qhov kub siab dua (feem ntau 70℃F lossis 21℃). Qhov no ua rau Cl. 2 tiv taus ntau dua rau cov pob txha tawg, tshwj xeeb tshaj yog nyob rau hauv cov phaj tuab, qhov pib kub qis, lossis cov ntawv thov uas thermal shock yog kev txhawj xeeb. Cl . 2 yog li ntawd nyiam rau cov hlab ntsha tseem ceeb, thaum Cl. 1 yog siv nyob rau hauv ib puag ncig xav tau tsawg.

Yuav ua li cas SA 387 Gr. 22 Cl. 2 piv rau carbon steel daim hlau zoo li SA 516 Gr. 70 nyob rau hauv siab - qhov kev pab kub?

SA 387 Gr. 22 Cl. 2 tshwj xeeb yog tsim los rau kev ua kom siab- qhov kub thiab txias, muab kev nkag siab zoo dua, kev ntxhov siab- kev ua haujlwm tawg, thiab oxidation kuj piv rau SA 516 Gr. 70 carbon steel. SA 516 feem ntau txwv rau kev pabcuam kub hauv qab 400 degree, thaum SA 387 Gr. 22 tuaj yeem ua haujlwm tau ntseeg siab txog 593 degree. Hauv kev siv cov tshuab refinery thiab petrochemical, SA 387 Gr. 22 yog siv rau cov raj cua sov, lub plhaub reactor, thiab cov khoom siv hluav taws xob sib hloov, thaum SA 516 yog siv rau qis dua -kub siab cov hlab ntsha thiab cov tso tsheb hlau luam.

Dab tsi yog qhov sib txawv ntawm SA 387 Gr. 22 Cl. 2 thiab SA 387 Gr. 22 Cl. 1?

Thaum lub tensile thiab yield zog yuav tsum tau rau Cl. 1 thiab Cl. 2 yog ze li ntawm zoo tib yam, Cl. 2 muaj ntau stringent cuam tshuam toughness yuav tsum tau. Qhov no txhais tau hais tias Cl. 2 daim hlau yuav tsum tau kuaj xyuas ntxiv kom ntseeg tau tias lawv tswj tau qhov hnyav ntawm qhov kub thiab txias, uas yog qhov tseem ceeb rau cov tuab- cov phab ntsa thiab cov ntawv thov uas muaj kev nyab xeeb yog qhov tseem ceeb. Kev txhim kho toughness ntawm Cl. 2 kuj muab kev tiv thaiv zoo dua rau kev qaug zog thiab thermal shock, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv siab.