Weldability ntawm ASME SA 533 Qib D yog dab tsi?
ASME SA-533 Qib D yog qis- alloy, siab- zog manganese-molybdenum-nickel steel nrog zoo weldability, feem ntau siv hauv cov hlab ntsha siab. Nws yuav tsum tau ceev faj cov txheej txheem vuam, feem ntau qis- cov txheej txheem hydrogen thiab preheat / post-weld heat treatment (PWHT), kom muaj zog thiab tsis txhob hydrogen-induced cracking (HIC), tshwj xeeb tshaj yog rau cov khoom tseem ceeb los yog hnyav.
ASME SA533 Qib D yog tus hwm zoo-tier alloy steel phaj uas sawv cev rau ib qho ntawm cov khoom zoo tshaj plaws hauv ASME Section II catalog. Nws yog Manganese-Molybdenum-Nickel steel uas yog kua-quenched thiab tempered kom ua tau zoo-grained, siab- kev ncaj ncees microstructure. Vim nws feem ntau siv nyob rau hauv thawj circuits ntawm nuclear fais fab nroj tsuag, qhov kev yuav khoom ntawm Qib D muaj kev ruaj ntseg zoo, nrog rau 100% volumetric ultrasonic kuaj thiab cua sov-tshwj xeeb kev kuaj xyuas kom muaj kev ruaj ntseg ntawm pej xeem thiab ib puag ncig.
Cov yam ntxwv tseem ceeb
Nil -Ductility Transition (NDT):Pov thawj kev ua tau zoo ntawm qhov kub thiab txias qhov twg lwm cov hlau yuav tawg.
Nqus Carbon Deoxidized:Feem ntau tsim siv VCD los xyuas kom meej qhov siab tshaj plaws sab hauv purity.
High Modulus ntawm Elasticity:Muab cov qauv rigidity zoo heev rau - cov nkoj loj.
Fatigue Resistance:Kev sim tshwj xeeb rau kev tiv thaiv qis - lub voj voog qaug zog thaum lub caij cog qoob loo.
Qib Qib
"SA":"S" yog hais txog Tshooj II (Cov Khoom Siv) ntawm ASME Code. "A" qhia tias nws yog aKhoom siv ferrous(hlau-raws li).
"533":Qhov no yog cov khoom specification rau"Manganese-Molybdenum thiab Manganese-Molybdenum-Nickel Alloy Steel Phaj, quenched thiab Tempered, rau lub nkoj siab."
"Qib D":Qhov no tshwj xeeb qhia txog qhovSiab -Nickel tshuaj muaj pes tsawg leeg. Thaum Qib B yog qhov ntau tshaj plaws, Qib D nce cov ntsiab lus Nickel los txhim kho los ntawm -thickness hardenability hauv ultra- cov phaj tuab (feem ntau tshaj 6 txog 10 ntiv tes).
Kev sib piv (vs. SA537 Chav Kawm 2)
Qib Siab:SA 533 gr. D (80 ksi) muaj zog dua SA537 (70 ksi tensile).
Alloy Hom:SA537 yog carbon-manganese steel; SA 533 gr. D yog npib tsib xee- molybdenum alloy.
Thickness Muaj peev xwm:SA537 feem ntau txwv rau 4 "; SA533 Gr. D tuaj yeem tshaj 12".
Nuclear Class:SA533 yog tus qauv rau thawj cov khoom siv nuclear; SA537 yog siv rau theem nrab lossis cov qauv siv.
Cov ntawv thov siv
Nuclear Pressurizer Plhaub:Cov phaj tuab rau tswj PWR qhov system siab.
Hnyav-Wall Manifolds:Rau siab heev -lub luag haujlwm hydraulic lossis roj faib.
Primary Coolant Pump Supports:Cov phaj loj loj rau siab -ib puag ncig kev co.
Containment Vessel Penetrations:Qhov twg cov phaj tuab muab cov txheej txheem txhim kho rau lub nkoj qhib.
Dab tsi yog qhov yuav tsum tau muaj zog toughness rau ASME SA 533 Qib D?
ASME SA 533 Qib D yuav tsum ua kom tau raws li qhov yuav tsum tau ua kom muaj zog, tshwj xeeb tshaj yog rau cov ntawv thov kub tsawg. Cov khoom siv feem ntau raug sim ntawm -50℃F (-46 degree), thiab nws yuav tsum nqus qhov tsawg kawg nkaus ntawm 20 ft-lbs (27 J) ntawm lub zog yam tsis muaj kev puas tsuaj. Qhov kev cuam tshuam toughness no ua kom cov khoom tuaj yeem tiv taus kev poob siab thiab kev ntxhov siab ntawm txhua yam yam tsis muaj kev tawg, uas yog qhov tseem ceeb rau kev tswj xyuas kev nyab xeeb hauv kev siv tseem ceeb, xws li cov hlab ntsha thiab cov reactors, qhov uas tsis ua hauj lwm tuaj yeem ua rau muaj kev puas tsuaj loj hauv qhov chaw huab cua.
Cov ntawv thov ntawm ASME SA 533 Qib D yog dab tsi?
ASME SA 533 Qib D feem ntau yog siv rau hauv siab - kev siv kev ntxhov siab, tshwj xeeb hauv kev tsim cov hlab ntsha siab, reactors, thiab cov khoom siv hluav taws xob. Nws lub zog zoo heev, tawv, thiab qis- qhov kub thiab txias ua rau nws haum rau siv hauv kev lag luam xws li kev tsim hluav taws xob, petrochemical, thiab nuclear zog. Cov khoom siv yog tsim los ua kom ntseeg tau nyob rau hauv siab -siab thiab qis- qhov kub thiab txias, ua kom muaj kev ncaj ncees ntawm cov txheej txheem tseem ceeb. Cov ntawv thov uas yuav tsum tau ua kom muaj zog nyob rau hauv thermal cycling thiab huab cua siab yog qhov zoo tagnrho rau cov khoom siv no.
Weldability ntawm ASME SA 533 Qib D yog dab tsi?
ASME SA 533 Qib D feem ntau suav tias yog vuam, tab sis kev saib xyuas yuav tsum tau ua thaum lub sij hawm vuam vim nws cov alloy muaj pes tsawg leeg. Preheating thiab post-weld heat treatment (PWHT) feem ntau yuav tsum tau los txo qhov kev pheej hmoo ntawm kev tawg thiab xyuas kom zoo ntawm cov welds. Los ntawm kev ua raws li cov txheej txheem vuam kom raug thiab siv cov ntaub ntawv muab tub lim tsim nyog, cov khoom tuav nws lub zog thiab kev ncaj ncees. Qhov no ua rau ASME SA 533 Qib D yog qhov kev xaiv txhim khu kev qha rau cov qauv siv welded siv hauv cov ntawv thov tseem ceeb xws li cov hlab ntsha siab thiab cov khoom siv hluav taws xob.
ASME SA533 Qib D steel tshuaj muaj pes tsawg leeg(%) :
|
Kev sib xyaw |
Qib D |
|
|
C Tsawg dua lossis sib npaug rau ① |
|
0.25 |
|
Mn |
Kev ntsuas kub |
1.15~1.50 |
|
Cov khoom tsom xam |
1.07~1.62 |
|
|
P Tsawg dua lossis sib npaug rau ① |
0.035 |
|
|
S Tsawg dua lossis sib npaug rau ① |
0.035 |
|
|
Si |
Kev ntsuas kub |
0.15~0.40 |
|
Cov khoom tsom xam |
0.13~0.45 |
|
|
Ni |
Kev ntsuas kub |
0.20~0.40 |
|
Cov khoom tsom xam |
0.17~0.43 |
|
ASME SA533 Qib D Class3 txhua yam khoom;
|
Qib |
Min Yield |
Tensile |
Thickness |
Elongation |
| ASME SA533 Qib D |
570mpa ua |
690-860 Mpa |
<50MM |
16% |
1. Lub zog tensile ntawm ASME SA 533 Qib D yog dab tsi?
Lub zog tensile ntawm ASME SA 533 Qib D yog nyob nruab nrab ntawm 70 txog 90 ksi (485-620 MPa). Lub zog tensile siab no tso cai rau cov khoom tiv thaiv deformation thiab tawg nyob rau hauv siab -siab. Lub zog ua kom ntseeg tau tias cov khoom siv tuaj yeem tiv taus cov kev ntxhov siab tseem ceeb thiab cov thermal hloov pauv yam tsis ua haujlwm. Cov cuab yeej no yog qhov tseem ceeb rau cov hlab ntsha siab, lub tshuab hluav taws xob, thiab lwm yam khoom siv hauv lub zog, petrochemical, thiab nuclear kev lag luam, qhov siab - cov ntaub ntawv muaj zog yuav tsum muaj rau kev nyab xeeb thiab kev ua haujlwm.
2. Cov ntsiab lus carbon ntawm ASME SA 533 Qib D yog dab tsi?
Cov ntsiab lus carbon ntawm ASME SA 533 Qib D yog nruab nrab ntawm 0.12% thiab 0.18%. Cov ntsiab lus qis carbon no txhim kho cov hlau weldability, txo qhov kev pheej hmoo ntawm kev tawg thaum vuam. Thaum cov ntsiab lus carbon khaws cia qis kom ntseeg tau tias cov khoom tsim tau zoo, nws kuj tseem pab kom muaj kev sib npaug ntawm lub zog thiab tawv. Qhov no ua rau ASME SA 533 Qib D zoo tagnrho rau siab -siab, qis-kub siv qhov twg ob lub zog thiab weldability tseem ceeb heev.
3. Cov ntsiab lus phosphorus hauv ASME SA 533 Qib D yog dab tsi?
Cov ntsiab lus phosphorus hauv ASME SA 533 Qib D yog txwv rau 0.035%. Qhov kev tswj hwm no tseem ceeb heev vim tias phosphorus tuaj yeem txo cov khoom siv tawv, tshwj xeeb tshaj yog nyob rau hauv qis - qhov kub thiab txias. Los ntawm kev txwv cov phosphorus, cov hlau tswj kev ua haujlwm siab thiab kev ua haujlwm zoo, kom ntseeg tau tias nws tuaj yeem tiv taus kev ntxhov siab thiab tiv thaiv kev puas tsuaj. Qhov no yog qhov tseem ceeb rau kev siv hauv cov hlab ntsha siab thiab cov reactors, qhov uas muaj zog yog qhov tseem ceeb rau kev nyab xeeb thiab kev ntseeg siab ntawm cov khoom nyob rau hauv hnyav ua haujlwm.
4. Cov txheej txheem kho cua sov rau ASME SA 533 Qib D yog dab tsi?
ASME SA 533 Qib D tau txais kev kho cua sov uas muaj quenching thiab tempering. Cov khoom yog thawj rhuab mus rau qhov kub thiab txias sai sai nyob rau hauv ib tug quenching nruab nrab xws li dej los yog roj kom tawv nws. Tom qab quenching, nws yog tempered los ntawm reheating mus rau ib tug qis kub los txo cov kev ntxhov siab nyob rau hauv thiab txhim kho toughness. Qhov kev kho cua sov no txhim kho cov hlau ua haujlwm hauv siab -siab thiab qis- qhov kub thiab txias, kom ntseeg tau tias nws muaj zog thiab ruaj khov rau cov ntawv thov tseem ceeb.
5. Dab tsi yog sulfur ntsiab lus hauv ASME SA 533 Qib D?
Cov ntsiab lus sulfur hauv ASME SA 533 Qib D feem ntau txwv rau 0.035%. Sulfur yog ib qho teeb meem impurity uas tuaj yeem ua rau cov khoom muaj zog, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias. Los ntawm kev txo qis sulfur ntau ntau, ASME SA 533 Qib D tuav cov kev cuam tshuam zoo heev thiab tawv. Qhov no yog qhov tseem ceeb tshwj xeeb rau cov ntawv thov nyob rau hauv ib puag ncig huab cua, qhov twg brittleness tshwm sim los ntawm leej faj tuaj yeem ua rau tsis ua haujlwm, cuam tshuam kev nyab xeeb thiab kev ua haujlwm. Kev txwv cov sulfur pab ua kom ntseeg tau, ua haujlwm ruaj khov hauv kev xav tau.
6. Dab tsi yog manganese cov ntsiab lus hauv ASME SA 533 Qib D?
Cov ntsiab lus manganese hauv ASME SA 533 Qib D yog feem ntau ntawm 0.60% thiab 1.30%. Manganese yog ib qho tseem ceeb ntawm cov hlau alloying uas ua rau cov hlau muaj zog thiab toughness. Nws txhim kho cov khoom muaj peev xwm tiv thaiv kev hnav, tawg, thiab deformation, ua rau nws zoo tagnrho rau kev siv siab - xws li cov hlab ntsha thiab cov reactors. Tsis tas li ntawd, manganese pab hauv deoxidizing cov hlau thaum lub sij hawm tsim khoom, ua rau kom zoo dua tag nrho cov khoom zoo thiab kev ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv xav tau kev lag luam ib puag ncig.
7. Dab tsi yog cov ntsiab lus ntawm silicon hauv ASME SA 533 Qib D?
Cov ntsiab lus silicon hauv ASME SA 533 Qib D yog li ntawm 0.15% txog 0.35%. Silicon ua tus neeg sawv cev deoxidizing thaum lub sij hawm tsim cov hlau, txhim kho cov khoom zoo thiab cov khoom siv kho tshuab. Ntxiv nrog rau kev txhim kho lub zog, silicon kuj tseem ua rau cov khoom tiv thaiv oxidation ntawm qhov kub thiab txias. Qhov no yog qhov tshwj xeeb tshaj yog rau cov ntawv thov uas cov khoom raug kub hnyiab, xws li hauv cov reactors, cov khoom siv hluav taws xob, thiab cov hlab ntsha siab, pab ua kom ntev - lub sij hawm durability thiab kev ua tau zoo.
Yog xav paub ntxiv txog GNEE cov khoom steel, tiv tauj peb ntawm info@gneesteels.com. Peb tos ntsoov yuav ua haujlwm nrog koj.
