Cov ntsiab lus ceev
1.0451yog ib tus lej khoom siv tsimCov Hlau HlauRaws li German / DIN tus qauvDin 17175Cov. Cov hlau no tau siv dav rau kev siv thiab ua cov kav dej seamless thiab cov leeg npaj rauhigh - kev pab kub, xws li nyob rau hauv lub hwj chim nroj tsuag thiab cov hlab ntsha siab.
Cov kev sib npaug thoob ntiaj tebASTM A335 P11lossisASME SA335 P11.
1. Cov khoom siv tshwj xeeb thiab kev tsim qauv
Tus lej "1.0451" los ntawm covDIN EN 10216-2Txheem (seamless cov hlau hlua rau siab lub hom phiaj {}}} cov khoom siv hlau}} aliroy} allloys ib leeg nrog cov khoom kom ntsuas kub).
Ntawm no yog nws cov qauv sib npaug thoob plaws cov qauv sib txawv:
| Lub hom phiaj | Qeb / Tsim Qauv |
|---|---|
| Din / en | 1.0451(Cov ntaub ntawv tus lej),13Crmo4-5(Tus me din npe) |
| ASTM / ASME | A335 / sa335P11 |
| Tsis yog | K11597 |
| JIS | Stpa 23 |
| Gost | 15 xm |
2. Tshuaj lom neeg sib xyaw
Qhov muaj pes tsawg leeg yog qhov tseem ceeb rau nws cov khoom. Nws yog aTsawg -} allloy steelMuaj cov chromium (CR) thiab Molybdenum (MO).
| Lub ntsiab | Cov ntsiab lus (%) |
|---|---|
| Carbon (c) | 0.10 - 0.20 |
| Silicon (si) | 0.10 - 0.35 |
| Manganese (mn) | 0.40 - 0.70 |
| Phosphorus (p) | Max . 0.025 |
| Sulphur (s) | Max . 0.020 |
| Chromium (cr) | 0.70 - 1.00 |
| Molybdenum (mo) | 0.40 - 0.60 |
Vim li cas cov muaj pes tsawg leeg no:
Chromium (CR):Txhim kho oxidation (scaling) tsis kam thiab muab qee lub zog ntawm qhov kub.
Molybdenum (mo)Ua kom muaj zog ntawm cov kub thiab txhim kho cov neeg nkag (tsis kam mus deformation nyob rau hauv ntev {}} lub sij hawm kev ntxhov siab thiab kub).
3. Cov Khoom Siv Kho Tshuab
Cov khoom siv feem ntau ntsuas ntawm chav tsev kub.
Tensile Lub Zog (RM):410 - 560 mpa
Yield zog (RP0.2):Ntau dua los yog sib npaug rau 235 MPa
Elongation (a):Ntau dua los yog sib npaug rau 22% (qhia tau tias tsim kho kom zoo)
4. Cov yam ntxwv tseem ceeb thiab cov txiaj ntsig zoo
Zoo heev - kub lub zog:Nws thawj kom tau txais txiaj ntsig. Nws khaws nws lub zog txhua yam ntawm qhov temperatures feem ntau txog li 550-600℃(1020-1110℃f).
Zoo creep resistance:Muaj peev xwm withstand tsis muaj kev ntxhov siab ntau ntawm kev nce siab kub ntev ntev tsis muaj kev deormation ntev.
Zoo weldability:Nws tuaj yeem muab welded siv cov kev sib txawv, txawm hais tias nws feem ntau yuav tsum tau ua ntej tso tawm thiab rov ua kom sov micht - be} cuam tshuam cheeb tsam (Haz).
Zoo oxidation tiv:Cov ntsiab lus chromium muab cov txheej tiv thaiv uas tiv thaiv tshuab (oxidation) hauv chav thiab roj kub.
Seamless kev tsim kho:Raug seamless txhais tau tias nws tsis muaj qhov ntev weld seam, ua rau muaj zog thiab txhim khu kev qha rau kev siab - qhov kev siv siab. Nws yog cov ris tsho nyob rau hauv cov qauv thiab lub zog nyob ib ncig ntawm nws txoj kev ncig.
5. Cov Ntawv Thov Tib Neeg
1.0451 Seamless kav yog feem ntau siv nyob rau hauv kev lag luam uas cov khoom siv tau raug rau kev kub siab thiab kub.
Lub zog tiam:SuperHeater thiab Rabe Rabes leeg, chav tsev loj, thiab headers hauv pob txha roj hluav taws xob roj teeb.
Petrochemical Kev Lag Luam:Cov leeg cua sov ua kom muaj zog, rhaub hlab, thiab hloov cov kab hauv cov ntoo kom huv thiab tshuaj lom.
Siab Hlab Tshuab:Rau cov tshuab raj xa tawm uas nqa siab high - siab siv cov roj lossis cov roj.
Boiler tshuab:Raws li qhov tseem ceeb ntawm cov khoom hauv siab - kev kub siab muaj boilers.
6. Kev sib piv nrog lwm cov qib kawm
| Teem nqi | Tsis muaj khoom siv. | Cov Nta Tseem Ceeb | Raug |
|---|---|---|---|
| P11 / 1.0451 | 1.0451 | 1.25% CR, 0.5% MOCov. Kev sib npaug zoo ntawm qhov siab - temp zog, wardability, thiab tus nqi. | Fais fab nroj tsuag, boilers (txog ~ 550 degree) |
| P22 / 1.7380 | 1.7380 | 2.25% CR, 1% moCov. Lub zog kub siab dua thiab cov quav nyoos ntau dua P11. | Lub hwj chim nroj tsuag, siab - kub raj (txog li ~ 580 degree) |
| P5 / 1.7358 | 1.7358 | 5% cr, 0.5% moCov. Zoo dua oxidation thiab corrosion tsis kam. | Petrochemical cua sov, siab - kub corrosion |
| P91 / 1.4903 | 1.4903 | 9% CR, 1% MO, V, NBCov. Advanced siab high - lub zog steel rau ultra - cov nroj tsuag supercritical. | Niaj hnub siab - effecticic fais fab nroj tsuag (txog ~ 625 degree) |
Tag
Tus1.0451 seamless steel yeeb nkabYog ib qho classic, txhim khu kev qha, thiab tus nqi -} alllo alliece {2} {{{3} {{kev pab cuam. Nws cov khoom sib xyaw ntawm chromium thiab molybdenum ua rau nws mus - kev lag luam zoo tshaj plaws, muaj kev sib txuam zoo, thiab weldability. Thaum koj pom daim ntawv tsim no, koj tuaj yeem ntseeg tau nws yog hais txog qhov siab- Kev ua yeeb nkab rau ib puag ncig.
