SA662 Qib C vs A36 - Qhov txawv ntawm qhov tseem ceeb
| Yam | SA662 Qib C | A36 |
|---|---|---|
| Hom | Cov pa roj carbon-manganese-silicon siab- nkoj hlau | Carbon steel qauv |
| Tensile zog | 485-620 MPa | 400-550 MPa |
| Kev pabcuam | Welded siab hlab ntsha, nruab nrab - mus rau - kub tsawg | General structures (bridges, tsev) |
| Toughness | Notch toughness rau siab- nkoj kev pabcuam | Cov khoom siv dav dav |
Dab tsi yog qhov txawv ntawm ASME SA662 Qib C thiab A36?
ASME SA662 Qib Cyog lub siab -lub zog Carbon-Manganese steel tsim rau welded siab hlab ntsha, tshwj xeeb tshaj yog rau nruab nrab - mus rau - kub qhov kev pab cuam, muab siab tensile zog (485-}620 MPa) tshaj A36. Hloov pauv, A36 yog lub zog qis (400-550 MPa) cov hlau me me feem ntau siv rau kev siv cov qauv siv xws li txuas hniav thiab cov tsev.
ASME SA662 Qib C sawv cev rau cov kev daws teeb meem tshwj xeeb rau cov cuab yeej siv siab uas yuav tsum muaj kev sib xyaw ua ke ntawm lub zog tensile siab thiab txhim khu kev qha "kua- ua ntej - tawg" kev ruaj ntseg profile. Qib no tau lees paub dav dav hauv ASME Boiler thiab Pressure Vessel Code rau nws lub peev xwm los tswj cov txheej txheem kev ncaj ncees nyob rau hauv nruab nrab siab thaum ntsib qhov hloov pauv ib puag ncig. Los ntawm kev siv cov pa roj carbon-manganese-silicon chemical system, Qib C muab cov qauv tsim kom muaj kev ntxhov siab ntau dua li Qib A lossis B, ua rau kev tsim cov nkoj sib dua yam tsis muaj kev cuam tshuam txog kev nyab xeeb uas tsim nyog rau kev tuav cov kua dej txaus ntshai lossis siab heev.
Cov yam ntxwv tseem ceeb
Nce tensile zog:Muab qhov tensile yam tsawg kawg nkaus ntawm 485MPa (70 ksi), tso cai rau kev suav cov phab ntsa thickness ntau dua.
Predictable Ductility:Tuav qhov elongation tsawg kawg yog 22--23%, kom ntseeg tau tias cov khoom tuaj yeem deform yam xyuam xim nyob rau hauv kev sib tsoo overpressure.
Thickness Range Efficiency:Qhov zoo tshaj plaws nyob rau hauv daim hlau txog li 2 ntiv tes (50 mm) tuab qhov twg normalizing tuaj yeem ua tiav cov khoom sib xws.
Fatigue Resistance:Cov nplua -cov nplej, cov qauv zoo ib yam muab kev tiv thaiv zoo heev rau kev pib tawg nyob rau hauv cyclic loading tej yam kev mob.
Qib Qib
ASME:American Society of Mechanical Engineers.
SA:Prefix rau Ferrous khoom specifications.
662:Tus qauv rau C-Mn-Si steel rau qis- kev pabcuam kub.
Qib C:Lub siab - lub zog muaj zog nyob rau hauv SA662 specification.
Kev sib piv (vs. SA537 Chav Kawm 1)
Thaum tshav kub kub kho Sensitivity:SA537 Chav Kawm 1 kuj normalized tab sis muaj ntau dua manganese; SA662 Qib C yog ib qho kev lag luam me ntsis ntxiv rau kev ua haujlwm siab.
Carbon txwv:SA662 Qib C tso cai rau kev hloov pauv me ntsis hauv cov ntsiab lus carbon piv rau SA537 txwv ntau dua.
Lub hauv paus muaj zog:SA537 tso siab rau cov tshuaj lom neeg nruj dua rau nws cov txiaj ntsig 50 ksi, qhov SA662 Qib C yog qhov sib npaug "toughness- thawj" qib.
Standard Muaj:SA662 Qib C feem ntau siv los hloov pauv ncaj qha rau SA516-70 thaum qhov kub thiab txias tsis tshua muaj kev txhawj xeeb.
Daim Ntawv Thov Kev Sib Tham
Natural Gas Scrubbers:Cov chav ua haujlwm tau siv los tshem tawm cov dej noo thiab impurities los ntawm siab - cov pa roj kwj.
Deaerator Plhaub:Cov hlab ntsha siab siv nyob rau hauv cov chaw tsim hluav taws xob kom tshem tawm cov roj yaj ntawm boiler feedwater.
Industrial Autoclaves:Siab - cov chav siab siv rau kev kho cov khoom sib xyaw lossis kev ua kom tsis muaj menyuam nyob qhov twg thermal shock tuaj yeem ua tau.
Flash Tanks:Cheebtsam hauv chav tshuab tsim los tswj ceev ceev thiab kub poob.
Surge Vessels:Tank siv nyob rau hauv cov dej thiab roj pipelines absorbs sai sai spikes thiab tiv thaiv dej rauj.
Qhov ntsuas kub siab tshaj plaws rau ASME SA 662 Qib C yog dab tsi?
Qhov siab tshaj plaws kub txwv rauASME SA 662 Qib Cfeem ntau yog nyob ib ncig ntawm800℃F (427 degree). Tshaj li qhov ntsuas kub no, cov khoom siv yuav pib poob nws lub zog thiab ua rau muaj kev cuam tshuam ntau duankag. Rau cov ntawv thov uas muaj qhov kub thiab txias, alloys xws liTIAB SA 516los yogSIB 204yog tsim nyog, raws li lawv muab kev ua tau zoo dua nyob rau hauv huab cua kub tej yam kev mob.
Dab tsi yog txheej txheem kev kho cua sov rau ASME SA 662 Qib C?
ASME SA 662 Qib Cyog feem ntaunormalizedtom qab fabrication. Cov txheej txheem kev kho cua sov no suav nrog cov khoom cua sov rau qhov kub siab (saum toj no1600℃F lossis 870 degree) thiab tom qab ntawd txias nws hauv huab cua kom kho cov qauv nplej. Cov txheej txheem no txhim kho covzogthiabtawvntawm cov khoom siv thiab xyuas kom meej tias nws haum raunruab nrab mus rau siab -siabdaim ntawv thov.
ASME SA662 Qib C tus qauv yog dab tsi?
ASME SA662 Qib C yog cov qauv kev qhia tshwj xeeb rau cov pa roj carbon-manganese- silicon steel daim hlau, tsim los rau cov hlab ntsha siab thiab cov boilers ua haujlwm ntawm qhov nruab nrab thiab qis dua. Nws muaj kev txhim kho qhov tsis zoo, ua rau nws tsim nyog rau cov ntawv thov xws li reactors, cov khoom siv hluav taws xob sib hloov, thiab cov tso tsheb hlau luam uas muaj kev ua tau zoo tshaj plaws hauv cov xwm txheej txias.
Tshuaj muaj pes tsawg leeg (Reference per SA662 Gr.C)
| Element | Kev xav tau (%) |
|---|---|
| C | 0.24 max |
| Mn | 0.92-1.72 |
| P | 0.035 max |
| S | 0.035 max |
| Si | 0.13-0.55 |
Mechanical Properties (Siv rau SA662 Gr.C)
| Thickness | Tawm tswv yim (MPa, min) | Tensile (MPa) |
|---|---|---|
| Txog li 50 mm | 295 | 485-620 |
Paub meej cov lus tseeb nrog rau cov qauv tsim thiab daim ntawv pov thawj zeb.
Tsim thiab Fabrication Notes
- Feem ntau zoo nyob rau hauv daim hlau txog li 50 hli qhov twg normalizing ua tau zoo ib yam khoom.
- Zoo weldability nrog SMAW, GTAW thiab SAW; preheating rau thicker seem.
- PWHT feem ntau xav tau rau cov ntu tuab kom txo tau qhov kev ntxhov siab nyob.
- Qhov kev pabcuam kub siab tshaj plaws feem ntau nyob ib ncig ntawm 800 F (427 C); dhau qhov no, creep dhau los ua kev xav.
Lub ntsiab lus ntawm C hauv ASME SA662 Qib C yog dab tsi?
Hauv ASME SA662 Qib C, "Qib C" tsim lub zog siab tshaj plaws sib txawv nyob rau hauv SA662 specification rau carbon-manganese-silicon steel daim hlau, uas yog npaj rau cov hlab ntsha ua haujlwm ntawm qhov nruab nrab thiab qis dua. Nws qhia txog qhov tshwj xeeb, siab dua tensile thiab tawm los muaj zog piv rau Qib A thiab B.
Dab tsi yog qhov weldability ntawm ASME SA 662 Qib C?
ASME SA 662 Qib Cmuaj zooweldability, ua rau nws tsim nyog rau kev koom nrog cov txheej txheem vuam xws liSMAW, GTAW, thiabSAW. Txawm li cas los xij, cov txheej txheem vuam kom raug thiabpreheatingyog qhov tseem ceeb, tshwj xeeb tshaj yog rau cov ntu tuab, txhawm rau tiv thaiv kev tawg thiab tswj cov khoom siv tom qab vuam.
Dab tsi yog kev lag luam feem ntau siv ASME SA 662 Qib C?
ASME SA 662 Qib Cyog siv feem ntau hauv kev lag luam uas xav tau cov hlab ntsha siab thiab boilers ua haujlwm ntawmnruab nrab mus rau qhov kub thiab txias. Nws yog feem ntau pom nyob rau hauv lubtshuaj, petrochemical, roj & roj, thiabtsim hluav taws xobindustries, qhov twg nws tshuav ntawmzogthiabductilityua rau nws zoo tagnrho rau fabrication ntawm cov khoom raug rau txhua yam thiab thermal stresses.
Puas yog tom qab -weld cua sov kho yuav tsum tau rau ASME SA 662 Qib C?
Yog lawm,post-weld kev kho cua sov (PWHT)feem ntau yuav tsum tau rauASME SA 662 Qib C, tshwj xeeb tshaj yog rau cov seem tuab. PWHT pab tautxo cov kev ntxhov siab seemthiab txhim kho cov khoom sivweldabilitythiabtawv. Qhov kev tshaj tawm zoo tshaj plaws -weld kub kho kub nyob ib puag ncig1100-1200 ° F (593-649 ° F), nyob ntawm qhov tuab ntawm cov khoom thiab cov kev thov tshwj xeeb.
Qhov cuam tshuam toughness ntawm ASME SA 662 Qib C yog dab tsi?
ASME SA 662 Qib Cmuab txauscuam tshuam toughnessntawmnruab nrab kub, ua rau nws resistant rau nkig tawg nyob rau hauv ib txwm ua hauj lwm tej yam kev mob. Txawm li cas los xij, nws tsis yog tsim los siv rau hauvDaim ntawv thov cryogeniclos yog ib puag ncig uas kub heev tuaj yeem cuam tshuam nws qhov toughness. Rau qis-kev siv kub, cov ntaub ntawv zoo liTIAB SA 537los yogTIAB SA 516nrog txhim khu kev cuam tshuam kuj raug pom zoo.
Lub zog tensile ntawm ASME SA 662 Qib C yog dab tsi?
Covtensile zogntawmASME SA 662 Qib Cfeem ntau yog nyob ntawm70-90 ksi (485-620 MPa). Qib tensile lub zog no ua rau nws haum raunruab nrab mus rau siab -siabdaim ntawv thov. Cov khoom muaj peev xwm tiv taus txhua yam kev ntxhov siab thiab thermal loads muaj nyob rau hauv cov hlab ntsha siab, kub exchangers, thiab boilers thaum tuav nws lub zog yam tsis muaj deforming nyob rau hauv siab.
Dab tsi yog qhov zoo ntawm kev siv ASME SA 662 Qib C hauv kev tsim cov hlab ntsha siab?
Lub ntsiab kom zoo dua ntawm kev sivASME SA 662 Qib Cnyob rau hauv lub nkoj siab kev tsim kho yog nwsnqi-effectivenessua ke nrogzoo zog, ductility, thiabweldability. Cov khoom no ua rau nws zoo tagnrho raunruab nrab mus rau siab -siabib puag ncig, xws li hauvchemical uathiabtsim hluav taws xob. Nwstawvxyuas kom meej tias nws muaj peev xwm tiv taus txhua yam kev ntxhov siab, thaum cov khoom siv tau yooj yim tso cai rau nws los ua cov duab sib txawv rau cov qauv ntawm cov nkoj sib txawv.
Yog tias koj muaj qhov yuav tsum tau ua rau ASME SA 662 Qib C, peb txais tos koj nug. GNEE tuav cov khoom lag luam loj uas feem ntau siv cov qib siab zog steel rau koj xaiv.Rau cov ncauj lus kom ntxaws cov khoom siv, tshuaj muaj pes tsawg leeg, thiab cov ntaub ntawv kev, nrog rau cov qauv dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw, ruaj khov zoo, thiab kev pabcuam tshaj lij. Email: info@gneesteels.com
