ASME sa249 tengtless hlau welded yeeb nkab rau shrbuilding
ASME SA249 Tp304 Welded yeeb nkab yog tus nqi -}}}, ntau yam khoom siv. Nws zoo heev corrosion tsis kam, siab lub zog, thiab zoo formurity tsim ua nws txoj kev xaiv zoo tshaj plaws rau kev lag luam nkoj. Nws tsim nyog rau cov ntawv thov xws li cov hws hws, kev hloov cua sov, thiab lwm cov kua dej uas tiv thaiv ib puag ncig thiab qhov kev ntsuas kub. Cov ntaub ntawv no yog tsim los ntawm dov thiab vuam tiaj si sawb, ua raws li los ntawm kev kho cua sov thiab ua haujlwm txias kom ua tiav cov khoom siv tshuab thiab kev ua haujlwm sab nraud.
Dab tsi yog Tp304 stainless hlau?
ASTM A312 TP 304/304 / 304L Cov yeeb nkab steel hlau yog qhov feem ntau siv thiab siv tau siv stainless hlau ntawm kev ua lag luam. Cov qib no ntawm stainless hlau yog Austenitic chromium alloys, tseem hu ua "18/8" Chromium li qub thiab 8% npib tsib xee.
1. Taw qhia rau tus asme sa249 tus qauv thiab cov khoom siv qib
Tsim los ntawm Asmeskas haiv neeg ntawm cov neeg kho tshuab engineers (ASME), cov txheej txheem ua rau Weluded Any249 tus qauv rau hauv boilers, superheaters, hloov cua sov, thiab cov condensers tshav kub. Tus qauv no ua kom ntseeg tau tias lub tubing sib ntsib txoj hlua khi zoo thiab kev ua tau zoo ntawm qhov siab tseem ceeb thiab kub}- siab- qhov kev siv siab.
TPP34 thiab TPP04L cov qib yog ntawm cov feem ntau dav siv Antertitic Stainless hlau thoob ntiaj teb thoob ntiaj teb thoob ntiaj teb thoob ntiaj teb. Thaum lawv qhia ntau yam khoom, ib qho tseem ceeb sib txawv nyob hauv lawv cov ntsiab lus carbon:
TPP30: MAXAGE cov ntsiab lus 0.08%
TPP3L: Ntau Tshaj Plaws Cov Ntsiab Lus 0.03% ("L" sawv rau "cov pa roj hmab tsawg)
Dual - Cov khoom ntawv pov thawj qib tau qhia tias cov khoom yuav tsum tau ua raws li ob qib thiab cov khoom siv ua ke rau ntau qhov kev siv.
2. ASME SA249 TPPTENSESS HLAU HLAU WELDED Raj raj tshuaj muaj pes tsawg leeg
Cov tshuaj lom neeg muaj pes tsawg leeg ntawm ASME SA249 Tp304 / 304L Welded Hlaws yuav tsum ua raws li cov lus qhia tshwj xeeb hauv qab no:
| Lub ntsiab | TPP3 YUAV TSUM | Kev xav tau ntawm Tp304L | Ob Daim Ntawv Pov Thawj Hluav Taws Xob Hluav Taws Xob |
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.08% | Tsawg dua los yog sib npaug rau 0.03% | Yuav tsum tau ua kom tau raws li qhov chaw stricter tsawg dua lossis sib npaug rau 0.03% txwv |
| Manganese (MN) | Tsawg dua los yog sib npaug rau 2.0% | Tsawg dua los yog sib npaug rau 2.0% | Yuav tsum tau ua kom tau tsawg dua lossis sib npaug rau 2.0% |
| Silicon (si) | Tsawg dua los yog sib npaug rau 1.00% | Tsawg dua los yog sib npaug rau 1.00% | Yuav tsum tau ua kom tau tsawg dua lossis sib npaug rau 1.00% |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.045% | Tsawg dua los yog sib npaug rau 0.045% | Yuav tsum tau ua kom tau tsawg dua lossis sib npaug rau 0.045% |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.030% | Tsawg dua los yog sib npaug rau 0.030% | Yuav tsum tau ua kom tau tsawg dua lossis sib npaug rau 0.030% |
| Chromium (cr) | 18.00-20.00% | 18.00-20.00% | Yuav tsum muaj 18.00-20.00% |
| Npib tsib caug (ni) | 8.00-11.00% | 8.00-12.00% | Feem ntau yog hloov kho rau 8.00-12.00 |
3. Sa249 Tp304 / 304l Welded Tube cov khoom siv thiab kev ua tau zoo yam ntxwv
| Ntiag tug | TPP3 YUAV TSUM | Kev xav tau ntawm Tp304L | Sau ntawv |
| Lub zog tensile | Ntau dua los yog sib npaug rau 515 MPa | Ntau dua los yog sib npaug rau 485 mpa | TPP30L feem ntau muaj qhov qis me ntsis |
| Paib lub zog | Ntau dua los yog sib npaug rau 205 MPa | Ntau dua los yog sib npaug rau 170 MPa | TPPP3L muaj qis zog zog zog |
| Elongation | Ntau dua los yog sib npaug rau 35% | Ntau dua los yog sib npaug rau 35% | Ob leeg tswj kev ua siab loj zoo |
| Hardness (HRC) | <90 | <90 | Cov yam ntxwv nyuaj |
4. SA249 Tp304 / 304l Welded Yeeb Nkab Kho thiab Kev Ntsuas Zoo
Tag nrho cov kav dej dhau los daws kev pab txhawb kev tshav kub kub:
Cua sov ntau dua los yog sib npaug rau 1040℃(ci annealing) raws li kev tiv thaiv huab cua
Tuav ntawm qhov kub no rau lub sijhawm txaus kom yaj cov carbides
Sai sai txias los ntawm dej quenching lossis lwm txoj kev los tiv thaiv carbide nag lossis daus
Tus txheej txheem no ua kom cov kav dej muaj cov khoom muaj txiaj ntsig zoo thiab cov khoom siv tshuab.
Tsim cov nplaum kom nruj cov txheej txheem tswj nruj heev:
Cov Khoom Siv Raw Khoom Siv: Tshuaj lom neeg cov khoom siv tshuaj lom neeg
Txheej Txheem Tswj: Vuam Parameter Xyuas
Tsis - Kev sim tshuaj (NDT): suav nrog x- ray kev sim, tshuab ultrasonic, thiab tawm ntawm kev sim tam sim no
Kev Ua Phem Tshaj: Kev Ntsuas Ib txwm Kev Ntsuas
Kev tshuaj xyuas zaum kawg: Kev tshuaj ntsuam tas nrho, kev tshuaj xyuas pom, thiab, qhov uas yuav tsum tau ua, hydrostatic kuaj
5. ASME SA249 TPPTPED DAIM NTAWV THOV:
Fais fab tiam boiles boiles boiles boiles boiles: siv rau chav tiam hauv pob txha pob zeb thiab cov nroj tsuag hluav taws xob.
SuperHeater leeg: siv los tsa cov chav kub kub saum toj no surchation point. Kev ua pa cua sov ua kom sov: siv nyob rau hauv ntau daim ntawv thov hloov cua sov nyob rau hauv lub hwj chim mus ncig.
Cov txheej txheem kev lag luam: tshuaj lom neeg: Cov tshuaj corrosive, acids, thiab kuab tshuaj.
Petroleum ua kom zoo dua: thauj hydrocarbons thiab cov txheej txheem dej.
Kws Tshuaj: tswj cov khoom ua suab paj nruag thaum ua kev ua piv txwv.
Lwm yam kev siv: khoom noj thiab dej haus ua: sib tham kev nyiam huv thiab kev nyiam huv.
Kev siv hluav taws xob nuclear: cov ntawv thov tshwj xeeb uas nyob qhov twg corrosion tsis kam yog qhov tseem ceeb.
Cov Kev Siv Marine: Cov Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob.
Gnee steel tshwj xeeb hauv kev tsim cov khoom ntau ntawm cov khoom lag luam stainless hlau. Gnee Steel cov khoom ntim khoom muaj xws li: cov hlua hlau: cov kav hlau: cov kav hlau nrog cov kab yeeb yaj kiab txheej lossis tsawg dua yog cov xeb thaum hiav txwv thaum hiav txwv thaum hiav txwv, thiab tom qab ntawd ruaj ntseg nrog hlau strapping. Cov kab mob ntoo / crates: pipes feem ntau ntim rau hauv cov tsiaj ntoo lossis crates los tiv thaiv cov kav dej thaum thauj mus los, tshwj xeeb yog cov uas nyob ntev dua lossis cov kab hniav loj dua. Seaworthy export ntim: Cov chaw muag khoom siv cov txheej txheem seaworthy export export cov ntaub ntawv sau thiab cov tswv yim los tiv thaiv cov kav dej thaum lub sijhawm thauj mus los. Tarpaulin Ntim: Qhov no tiv thaiv los nag, seawater, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub crates export thaum thauj mus los. GNEE steel tshwj xeeb hauv kev tsim khoom thiab muag khoom ntawm alloy cov ntaub ntawv. Gnee Steel cov khoom tau siv dav hauv Aerospace, tshuaj, fais fab, thiab peb tuaj yeem muab hluav taws xob customive cov kev daws raws li cov neeg siv khoom xav tau. Rau cov ntaub ntawv ntsig txog alloy lossis customized almoy alloy cov kev daws teeb meem, thov hu rau peb rau nqe lus:ru@gneesteelgroup.com
