Dab tsi ib puag ncig tuaj yeem siv ASME SA662 Qib B?
ASME SA662 Qib Byog cov pa roj carbon-manganese- silicon steel phaj feem ntau siv rau cov hlab ntsha siab, boilers, thiab cov tso tsheb hlau luam cia ua haujlwm nyob rau hauv nruab nrab mus rau qhov kub thiab txias. Nws yog qhov zoo- haum rau kev lag luam uas xav tau siab- lub zog, qis- qhov kub thiab txias, xws li roj thiab roj, kev ua tshuaj lom neeg, thiab kev tsim hluav taws xob.
ASME SA662 Qib B yog qib qib steel uas tau lees paub thoob ntiaj teb uas muab cov qauv kev daws teeb meem rau qis - qhov kub thiab txias ciam teb kev tsim kho. Nws tau teev tseg los ntawm thoob ntiaj teb EPC (Engineering, Procurement, thiab Kev Tsim Kho) cov tuam txhab vim nws ua tau raws li cov kev cai sib tshooj ntawm ntau txoj cai kev nyab xeeb thoob ntiaj teb. Raws li C-Mn-Si steel, nws muaj tus nqi- zoo dua rau stainless hlau rau nruab nrab corrosion / kub ib puag ncig. Nws txoj kev siv dav dav hauv ntiaj teb refineries thiab cov nroj tsuag tshuaj yog vim nws txoj kev ntseeg siab, kev yooj yim ntawm kev yuav khoom, thiab qib siab ntawm kev ntseeg siab los ntawm nws daim ntawv pov thawj ASME.
Cov yam ntxwv tseem ceeb
Manganese-Silicon Balance:Optimizes kev daws teeb meem - ntxiv dag zog rau cov teebmeem ntawm Silicon nrog cov nplej - refining teebmeem ntawm Manganese.
Killed Steel Purity:Qhov tshwm sim hauv kev suav nrog tsawg dua thiab laminations, uas yog qhov tseem ceeb rau siab -kev ncaj ncees fabrication.
Economic Efficiency:Muab kev ua tau zoo dua li cov qauv carbon steel rau tus nqi qis dua.
Kev txhawb nqa thoob ntiaj teb:Muaj los ntawm feem ntau steel mills thoob ntiaj teb uas tsim cov hlab ntsha siab (PVQ) daim hlau.
Qib Qib
ASME:American Society of Mechanical Engineers.
SA:Prefix rau Ferrous khoom specifications.
662:Tus lej tus qauv rau C-Mn-Si steel rau qis- qhov kev pabcuam kub.
Qib B:Qhia qhov nruab nrab lub zog theem nyob rau hauv no specification.
Kev sib piv (vs. SA285 Qib C)
Hwj chim Class:SA285 yog tsawg-rau-lub zog nruab nrab; SA662 Qib B yog siab dua -lub zog, toughness- qib taw qhia.
Metallurgy:SA285 tsis tas yuav ua kom zoo -kev xyaum ua nplej; SA662 Qib B ua.
Kev Pabcuam Ib puag ncig:SA285 yog rau dav dav - lub hom phiaj tso tsheb hlau luam; SA662 yog rau engineered siab -siab, qis- khoom siv kub.
Tsim Siab:SA662 Qib B cov hlab ntsha tuaj yeem tswj tau qhov kev ua haujlwm siab dua rau tib qhov hnyav.
Daim Ntawv Thov Kev Sib Tham
Industrial Surge Tanks:Siv nyob rau hauv industrial dej thiab kua kav dej.
Pulp Digester Vessels:Loj - ntsuas ntsuas ntsuas siv hauv cov txheej txheem tsim ntawv.
Carbon Steel Autoclaves:Pressure Chambers rau industrial curing thiab sterilization.
Marine Separators:Cov cuab yeej siv rau ntawm cov chaw tsim khoom los cais cov roj thiab roj.
Compressed Cua Manifolds:Siab - lub taub hau muaj zog rau kev faib khoom cua.
Lub luag haujlwm ntawm ASME SA612 Qib B hauv kev lag luam roj thiab roj yog dab tsi?
Hauvkev lag luam roj thiab roj, SA612 Qib Byog nquag siv nyob rau hauv kev tsim kho ntawmcov hlab ntsha siab, kub exchangers, thiabcia tankqhov twgsiab nruab nrabkoom nrog. Nws muab ib qhokev lag luamkev daws teeb meem rau kev tuav cov kev ntxhov siab thiab qhov kub thiab txias tau ntsib hauv kev ua kom zoo, kev ua tshuaj lom neeg, thiab kev thauj mus los, ua rau nws zoo tagnrho rautsis yog - tseem ceebkev siv hauv kev lag luam.
Dab tsi yog qhov yuav tsum tau ua tom qab-weld heat treatment (PWHT) rau ASME SA612 Qib B?
Tom qab vuam,SA612 Qib Btej zaum yuav xav taupost-weld kev kho cua sov (PWHT)txhawm rau txo cov kev ntxhov siab seem thiab txhim kho cov cuab yeej cuab tam ntawm cov pob qij txha welded. Feem ntau, cov khoom siv cua sov- kho raukev ntxhov siabkub nruab nrab1100-1200 ° F (593-649 ° F), nyob ntawm qhov tuab ntawm ntu. PWHT pab tiv thaiv kev tawg thiab txhim khotawvnyob rau hauv tshav kub - cuam tshuam cheeb tsam.
Lub zog tensile ntawm ASME SA612 Qib B yog dab tsi?
Covtensile zogntawm SA612 Qib B feem ntau yog nyob ntawm70-90 ksi (485-620 MPa). Lub zog tensile no ua kom cov khoom siv tausiab nruab nrabthiab thermal stress hauv daim ntawv thov xws licov hlab ntsha siabthiabkub exchangers. Nws lub zog tensile yog txaus raunruab nrab-kubkev pabcuam tab sis tsis tsim nyog rausiab -siab los yog siab - kubdaim ntawv thov, qhov twg cov ntaub ntawv muaj zog zoo li SA516 raug pom zoo.
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SA662 qib B Tshuaj muaj pes tsawg leeg |
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Qib |
Cov ntsiab lus Max (%) |
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|
C |
Mn |
P |
S |
Si |
|
|
SA662 qib B |
0.22 |
0.79-1.62 |
0.035 |
0.035 |
0.13-0.45 |
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Qib |
SA662 qib B Mechanical Property |
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Thickness |
Yield |
Tensile |
Elongation |
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SA662 qib B |
mm |
Min Mpa |
Mpa |
Tsawg% |
|
200 |
275 |
450-585 |
20 |
|
|
50 |
23 |
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1 Cov txheej txheem vuam rau ASME SA612 Qib B yog dab tsi?
VuamSA612 Qib Bkoom nrogpreheatingcov khoom siv hauv paus, tshwj xeeb tshaj yog rau cov ntu tuab, kom zamtawgthaum lub sij hawm vuam txheej txheem. Tom qab vuam, apost-weld kev kho cua sov (PWHT)tej zaum yuav xav tau los txo cov kev ntxhov siab seem thiab txhim kho cov khoom siv ntawm cov khoom siv vuam. Qhov tseebcov ntaub ntawv muab tub limyuav tsum tau xaiv kom phim cov tshuaj muaj pes tsawg leeg ntawm SA612 Qib B kom tau txais txiaj ntsig zoo.
2 Lub zog tawm ntawm ASME SA612 Qib B yog dab tsi?
Covyield zogntawm SA612 Qib B yog qhov tsawg kawg nkaus34 ksi (235 MPa). Qhov kev tawm dag zog no txhais tau hais tias cov khoom yuav pib mus tas li deform nyob rau hauv kev ntxhov siab ntau dua li tus nqi no. SA612 Qib B yog tsim los rau cov ntawv thov uas qhov kev ntxhov siab thiab kev ntxhov siab nyob nruab nrab thiab yuav tsis pub dhau qhov kev txwv no, ua rau nws zoo tagnrho raucov hlab ntsha siabhauvtshuajthiabpetrochemicalkev lag luam.
3ASME SA612 Qib B puas tuaj yeem siv rau kev siv cryogenic?
Tsis yog,SA612 Qib Byogtsis haumrau kev siv cryogenic. Cov khoom tsis muaj qhov toughness thiab lub zog xav tau los tswj nws txoj kev ncaj ncees hauvtsis tshua muaj kub. Rau ib puag ncig cryogenic, cov ntaub ntawv zoo liSIB 537los yogSIB 516nrog txhim khoqis-kub los cuam tshuam toughnessnyiam, raws li lawv tau tsim los tiv thaiv cov kev ntxhov siab thiab brittleness cuam tshuam nrog cov xwm txheej cryogenic.
4 Dab tsi kev lag luam feem ntau siv ASME SA612 Qib B?
SA612 Qib B feem ntau siv hauv kev lag luam xws lichemical ua, petrochemical, roj & roj, thiabtsim hluav taws xob. Nws yog siv raucov hlab ntsha siab, cia tank, kub exchangers, thiab lwm yam khoom siv uas qhov nruab nrab qhov kub thiab txias tau ntsib. Nwsweldabilitythiabnqi-effectivenessua rau nws mus- rau cov ntaub ntawv rautsis yog - tseem ceebkev siv hauv cov kev lag luam no.
5 Dab tsi yog qhov ceev ntawm ASME SA612 Qib B?
Qhov ntom ntawmASME SA612 Qib Bcarbon-manganese- silicon steel phaj yog kwv yees li7,85g 3( 7850kg/m3o 0.284 lb/in 3 ). Raws li lub siab - lub zog siab lub nkoj steel, nws yog tsim los rau qis - mus rau - qhov kub thiab txias kev pab cuam, nrog ib tug ceev raws li tus qauv carbon steel, ib txwm 490 lb/ft3 .
6 Txoj kev kho cua sov rau ASME SA612 Qib B yog dab tsi?
SA612 daim hlau feem ntau yog cua sov- kho raunormalizescov khoom. Qhov no suav nrog cua sov cov hlau mus rau qhov kub thiab txias uas tso cai rau microstructure hloov, txhim kho cov khoom sivzog, tawv, thiabductility. Qee zaum,temperinglos yogkev ntxhov siabyog siv tom qab normalizing ntxiv txhim kho cov hlau cov khoom siv kho tshuab thiab txo cov kev ntxhov siab sab hauv uas tuaj yeem ua rau tawg lossis deformation hauv siab.
7 Dab tsi yog qhov txwv ntawm ASME SA612 Qib B hauv qhov chaw huab cua?
SA612 Qib B yogtsis pom zoo rau siab -kublos yogqis -kubdaim ntawv thov. Nws yog qhov zoo tshaj plaws siv raunruab nrab-kubkev pabcuam (txog li500℃F / 260 degree). Rau cov ntawv thov uas muaj qhov kub thiab txias qis dua los yog tshaj500℃F, lwm cov ntaub ntawv xws liSIB 516los yogSIB 537nyiam vim lawvzoo dua toughnessthiabsiab -kubtsis kam.
Tau txais cov lus muaj nuj nqis rau ASME SA662 Qib B, Hu rau GNEE Steel
