1.0453 thiab P235GH: Qhov Kev Tsim Nyog txhais li cas
1.0453 yog tus naj npawb ntawm cov khoom siv rau P235GH nyob rau hauv European txoj kev xaiv rau steels. Qib tau txhais nyob rau hauv EN 10216-2, tus qauv rau seamless steel raj rau lub hom phiaj siab nrog cov kev ntsuas kub siab, thiab nws yog ib qho ntawm cov khoom siv dav siv tsis yog hlau boiler raj hauv European xyaum. Lub npe nws tus kheej ua raws li kev xav ntawm lub cev: tsab ntawv P qhia tau hais tias cov hlau yog npaj rau lub hom phiaj siab, 235 yog qhov tsawg kawg nkaus yield zog ntawm chav tsev kub hauv megapascals, H qhia tau hais tias qhov kub thiab txias zog tau teev tseg, thiab G qhia tias cov hlau yog grain refined thiab xa nrog ib tug guaranteed yam tsawg kawg nkaus lub zog.
Vim tias 1.0453 yog tus lej ntawm cov khoom siv tsis yog lub npe qib, qhov kev txiav txim uas tsuas yog tus lej tsis tiav. Tus qauv, daim ntawv khoom thiab cov xwm txheej ntawm tus me nyuam yuav tsum tau hais ib yam nkaus, vim tib tus lej tuaj yeem tshwm sim hauv cov lus qhia tshwj xeeb rau cov raj, phaj lossis forgings nrog cov khoom sib txawv. Qhov kev xa khoom ib txwm muaj rau qib no yog normalized.
Tshuaj muaj pes tsawg leeg ntawm P235GH / 1.0453
Cov chemistry yog txhob txwm tshaj tawm yooj yim thiab nruj tswj kom cov hlau tseem yooj yim rau vuam, tsim thiab kho cua sov.
| Element | Cov ntsiab lus (%) |
|---|---|
| Cov pa roj carbon (C) | max . 0.16 |
| Silicon (Si) | max . 0.35 |
| Manganese (Mn) | 0.40 - 1.20 |
| Phosphorus (P) | max . 0.025 |
| Sulfur (S) | max . 0.015 |
| Aluminium (Al) | min . 0.020 |
Cov ntsiab lus carbon tsawg ua rau cov hlau weldable yam tsis muaj preheating nyob rau hauv ib txwm phab ntsa thicknesses, thaum qhov tsawg kawg nkaus aluminium ntxiv refines lub grain loj thiab txhim kho toughness. Phosphorus thiab sulfur yog tuav kom tsawg txwv vim hais tias ob lub ntsiab embrittle cov hlau thiab txo nws cov kev ua tau zoo nyob rau hauv lub sij hawm ntev siab kub kev pab cuam.
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yield zog (ReH), min. | 235 MPa rau |
| Tensile zog (Rm) | 360 - 510 MPa |
| Elongation (A), min. | 25% |
Qhov ntsuas kub ntawm chav tsev saum toj no tau teev tseg rau cov xwm txheej zoo li qub thiab raug txheeb xyuas ntawm txhua chav ntsuas. TS EN 10216-2 tseem tabulates yam tsawg kawg nkaus cov txiaj ntsig muaj zog ntawm qhov kub siab, uas poob thaum kub nce, nrog rau cov ntaub ntawv nkag mus. Cov ntsuas kub siab, thiab tsis yog chav tsev kub tawm los muaj zog, yog dab tsi tus kws tsim hluav taws xob siv los tsim kom muaj kev ntxhov siab ntawm ib feem.
Vim li cas nws thiaj haum Boiler thiab Superheater Service
Kev sib xyaw ua ke ntawm cov khoom hauv qib no zoo sib xws rau cov khoom siv hluav taws xob. Nws qhov sib npaug ntawm cov pa roj carbon tsawg txhais tau tias nws tuaj yeem welded nrog tag nrho cov txheej txheem, thiab nyob rau hauv nruab nrab phab ntsa thicknesses tsis preheat los yog post-weld cua sov yog xav tau, uas ua rau fabrication nqi. Nws khaws cov khoom muaj txiaj ntsig zoo rau qhov kub thiab txias nyob rau hauv boiler nruas thiab superheater inlet seem, thiab nws cov khoom creep tau txhais nyob rau hauv tus qauv es tsis yog sab laug rau tus neeg muag khoom. Nws kuj khoov, flanges thiab nthuav mus rau hauv tubesheets ntseeg tau, thiab nws tiv thaiv chav sab oxidation zoo txaus los muab lub neej ua haujlwm ntev hauv cov raj dej thiab cov raj hluav taws kub.
Qib sib npaug hauv Lwm Cov Txheej Txheem
| Thaj tsam | Txuj | Qib |
|---|---|---|
| Teb chaws Europe | TS EN 10216-2 | P235GH / 1.0453 |
| Thoob ntiaj teb | ISO 9329-2 | P235GH |
| Teb chaws USA | ASTM A178 Cov khoom lag luam | Qib A |
| Teb chaws USA | ASTM A192 Cov Lus Qhia Tshwj Xeeb | A192 |
| Teb chaws USA | ASTM A106 1 | Qib B |
| Lub teb chaws Yelemees | TIAB SA 17175 | qib 35.8 |
Cov kev sib npaug no nyob ze rau hauv kev muaj pes tsawg leeg thiab lub zog tab sis lawv tsis tuaj yeem hloov pauv yam tsis muaj kev tshuaj xyuas, vim tias txhua tus qauv txiav txim siab nws tus kheej kev sim, kev kam rau siab thiab kev lees paub. Qhov twg yuav tsum muaj qhov kub thiab txias dua, cov qib alloyed 13CrMo4-5 thiab 10CrMo9-10 yog cov kauj ruam tom ntej hauv tib tsev neeg tus qauv.
FAQ
Q: Tus lej 1.0453 txhais li cas?
Nws yog cov ntaub ntawv tus naj npawb ntawm P235GH nyob rau hauv European steel designation system. Lub npe qib nws tus kheej yog cov ntaub ntawv ntau dua, vim nws hais txog lub hom phiaj siab thiab qhov tsawg kawg nkaus tawm los.
Q: Dab tsi yog qhov tsawg kawg nkaus tawm lub zog ntawm 1.0453?
Qhov tsawg kawg nkaus yield zog ntawm chav tsev kub yog 235 MPa, uas yog qhov twg 235 nyob rau hauv lub npe qeb los ntawm. Tus nqi ntawm qhov kub siab yog tabulated cais hauv EN 10216-2.
Q: Puas yog 1.0453 yeeb nkab xav tau preheating ua ntej vuam?
Nyob rau hauv ib txwm phab ntsa thicknesses nws tsis, vim hais tias cov pa roj carbon ntsiab lus yog tsawg thiab cov carbon sib npaug yog me me. Thicker seem thiab cov pob qij txha nruj heev tseem yuav xav tau preheat raws li cov ntaub ntawv siv tau.
Q: Puas yog 1.0453 tib yam li ASTM A106 Qib B?
Lawv yog cov sib npaug zoo sib xws uas tsis yog- alloy siab steels thiab feem ntau hloov pauv hauv kev xyaum, tab sis cov qauv sib txawv hauv kev txwv chemistry, kev sim thiab kev ua siab ntev, yog li kev hloov pauv yuav tsum raug lees txais los ntawm txoj cai tsim.
Q: Qhov kev pabcuam siab tshaj plaws rau qib no yog dab tsi?
Qhov ntsuas kub tso cai nyob ntawm tus qauv tsim thiab qib kev ntxhov siab. TS EN 10216-2 Cov khoom siv siab kub tawm los ntawm lub zog thiab cov ntaub ntawv nkag, thiab cov cai hloov cov ntaub ntawv mus rau hauv qhov tso cai rau kev ntxhov siab rau cov khoom.
