Lub ntsiab
ASTM A335 P23yog tus qauv tshwj xeeb rauSeamless Ferritic Alloy - Cov Yeeb NkabTsim los rau high - kev pab kub. Cov qauv "P23" hais txog nws cov tshuaj lom neeg muaj pes tsawg leeg, uas yog ua raws li hloov kho 2.25% chromium steel, optimized rau kev txhim kho weldability thiab lub zog.
Nws yog niaj hnub, zoo tshaj vam meej rau cov laus T22 / P22 / P22 thiab yog cov khoom tseem ceeb rauAdvanced Ultra- supercritical (USC) fais fab.
Cov yam ntxwv tseem ceeb & Cov txiaj ntsig zoo
Siab - kub lub zog:Tsim los tswj kom zoo tshaj plaws thiab lub zog ua kom muaj zog (tsis kam rau deformation nyob rau hauv ntev {}}}) ntawm qhov kub thiab txias feem ntau txog li 1050℃f (565 degree).
Zoo heev Weldability:Ib qho ntawm nws thawj qhov zoo tshaj cov hnub nyoog zoo li P22. P23 muaj cov ntsiab lus txo cov roj teeb thiab ntxiv cov ntsiab zoo li Vanadium thiab tungsten, uas muaj cua sov {{2} {weld cua sov kho (pwy)
Txhim kho microstration stability:Cov ntsiab lus alloying pab tswj cov micrilize micrastrilure thaum ntev-}}}}}}}} log ntawm cov kauj vab loj, tswj kev tswj hwm.
Zoo oxidation & corrosion tsis kam:Cov ntsiab lus chromium muab qhov txaus ua kom tsis kam mus rau oxidation (scaling) thiab qee hom corrosion nyob rau hauv high {{0} {}}}}} qhov chaw dej sov.
Tshuaj Muaj Tshuaj
Cov tshuaj lom neeg muaj kuab lom (hauv qhov hnyav feem pua) yog qhov tseem ceeb hauv nws qhov kev ua tau zoo. Hauv qab no yog cov qauv ntawm ASTM A335:
| Lub ntsiab | Muaj pes tsawg leeg (%) |
|---|---|
| Carbon (c) | 0.04 - 0.10 |
| Manganese (mn) | 0.10 - 0.60 |
| Phosphorus (p) | 0.030 max |
| Sulphur (s) | 0.010 max |
| Silicon (si) | 0.50 max |
| Chromium (cr) | 1.90 - 2.60 |
| Molybdenum (mo) | 0.05 - 0.30 |
| Vanadium (V) | 0.20 - 0.30 |
| Tungsten (w) | 1.45 - 1.75 |
| Boron (b) | 0.0005 - 0.0060 |
| Nitrogen (n) | 0.015 max |
| Aluminium (AL) | 0.030 max |
| Niobium (nb) | 0.02 - 0.08 |
Nco tseg:Cov pa roj carbon tsawg, feem ntau ntawm V, W, thiab ntxiv rau ntawm cov coron yog dab tsi sib txawv P23 thiab muab nws cov khoom zoo tshaj plaws.
Cov Khoom Siv Neeg Kho Tshuab
Cov khoom siv mechanies rau cov khoom siv uas ib txwm muaj thiab qhov kub tshaj yog li nram no:
| Ntiag tug | Tus nqi |
|---|---|
| Lub zog tensile | 510 mpa (74 ksi) min |
| Paib lub zog | 400 MPA (58 KSI) min |
| Elongation | 20% min (ntawm tus qauv 2-nti gauge ntev) |
Cov Kev Siv Cov Ntawv Siv
A335 P235 P23 tau siv nyob rau hauv qhov siab tseem ceeb - kub thiab siab {{} siab} cov nroj tsuag siab ntawm kev muaj cov nroj tsuag:
Lub hwj huam nroj tsuag:Superheaters, reseaters, cov kab chav dej tseem ceeb, thiab cov kav taub hau taub hau hauvThee -} Raug Rho Tawm Hluav Taws Xob, tshwj xeeb tshaj yog nyob rau hauv previews ultra -} supercritical (USC) chav nyob.
Petrochemical Kev Lag Luam:Rhaub cov leeg, kev hloov cua sov, thiab hloov cov kab hauv kev ua kom huv thiab tshuaj chemical uas muaj qhov siab- kub ua rau yog qhov yuav tsum tau ua.
Boiler tshuab:Rau ob qho tib si siab - qhov siab thiab qis- siab} siab} siab boiling tubing.
Sib piv nrog cov qhab nia zoo sib xws
| Yam zoo | A335 P23 | A335 P22(Cov txheej txheem qub) | A335 P91(Lub zog siab dua) |
|---|---|---|---|
| Qhov Tseem Ceeb Alloying | ~ 2.25% CR, W, V, B | ~ 2.25% CR, 1% mo | 9% CR, 1% MO, V, NB |
| Cov ntsiab lus carbon | Tsawg (0.04-0.10%) | Siab dua (0.05-0.15%) | Nruab nrab (0.08-0.12%) |
| Hwj txwv | Zoo tshaj | Yuav tsum tau nruj ua ntej / tshaj tawm -} kub | Yuav tsum tau nruj ua ntej / tshaj tawm -} kub |
| Temp. Lub zog | Zoo (txog li ~ 565 degree) | Qis dua p23 | Siab heev(txog ~ 600 degree) |
| Thawj siv | Hloov P22, Tshiab US Nroj Tsuag | Tsoos hluav taws xob nroj tsuag | High -} kub seem ntawm USC Nroj Tsuag |
Cov Qauv Raug Thiab Kev Kho Cua Sov
Txheem: ASTM A335 / A335M- Txheem Cov Qauv rau Seamless Ferritic Alloy {} steel yeeb nkab rau high- kub kev pab.
Kev Kho Cua Sov:P23 kav dej yuav tsum tau muab rau hauvQub thiab Temperedmob kom ua tiav qhov xav tau microstructure thiab cov khoom siv mechanical.
Lub ntsiab
Nyob rau hauv essence,A335 P23 Seamless Steel Yeeb NkabYog lub siab - kev ua tau, nqi -}}}} all steel້ນ all- kev siv ntsuas kub. Nws lub zog zoo dua thiab lub zog zoo ua rau nws xaiv qhov zoo tshaj plaws rau niaj hnub, feem ntau yog kev txhim kho kev txhim kho ncaj qha los ntawm cov laus P22 qib.
Thaum sourcing cov khoom no, nws yog qhov tseem ceeb los xyuas kom lub zeb muab cov ntawv pov thawj kom tsim nyog thiab cov yeeb nkab yog cim nrog qib "P23" rau traceability.
