Hauv lub ntiaj teb niaj hnub no, kev xav tau ntawm kev tsim kho thiab kev tsim khoomcov hlau muaj zog heev, vuam tau, thiab ruaj khovyeej tsis tau muaj dua li no. Ntawm cov ntaub ntawv siab heev no,P690 qib hlausawv tawm ua ib qho ntawm cov kev xaiv txhim khu kev qha tshaj plaws rau cov ntawv thov kev ua haujlwm hnyav. Tsab xov xwm no los ntawmSAKYSTEELtshawb nrhiav cov lus txhais, cov khoom sib xyaw, cov khoom, thiab cov ntawv thov ntawm P690 steel, pab cov engineers, cov neeg tsim khoom, thiab cov thawj coj haujlwm nkag siab tias vim li cas qib no tau dhau los ua qhov kev xaiv zoo tshaj plaws hauv cov hlab ntsha siab, cov platforms offshore, thiab cov qauv muaj zog.
1. Txheej txheem cej luam ntawm P690 Qib Hlau
P690yog ib qhohlau uas muaj zog heev thiab quenchedfeem ntau yog siv rau hauv kev tsim cov khoom sivcov hlab ntsha siab, cov boilers, thiab cov khoom siv hnyavTus "P" hauv nws lub npe txhais tau tiaslub thawv hlau siab, thaum tus lej "690" hais txog nwsqhov tsawg kawg nkaus ntawm cov zis muaj zog ntawm 690 MPa, uas yog siab heev piv rau cov hlau ua vaj tse ib txwm muaj.
Cov khoom no yog ib feem ntawm covEN 10028-6 tus qauv, uas txhais cov hlau rau lub hom phiaj siab uas dhau losKev kho cua sov quenched thiab tempered (QT)Vim nws qhov kev ua tau zoo tshaj plaws thiab kev sib txuas ua ke,P690yog dav txais yuav hauvlub zog, petrochemical, offshore, thiab kev tiv thaiv.
Cov Yam Ntxwv Tseem Ceeb:
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Yam tsawg kawg nkaus tawm los muaj zog: 690 MPa
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Lub zog tensile ntau yam: 770–940 MPa
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Kev kho cua sov: Quenched thiab tempered
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Kev tawv zoo heev ntawm qhov kub qis
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Kev vuam zoo nrog kev tswj hwm preheating thiab kev kho tom qab vuam
At SAKYSTEEL, peb muab khoomP690Q, P690QL, thiab P690QL2cov kev hloov pauv, muab cov qib sib txawv ntawm kev cuam tshuam toughness uas haum rau ntau yam kev pabcuam ib puag ncig.
2. Cov Qauv thiab Cov Qauv
P690 raug muab faib ua peb qib me raws liCov kev cai ntawm qhov kub thiab txias ntawm kev sim cuam tshuam:
| Qib | Lub Npe | Qhov Kub Ntsuas Yam Tsawg Kawg Nkaus | Daim Ntawv Thov Ib Txwm Muaj |
|---|---|---|---|
| P690Q | Tua thiab Tempered | 0°C | Cov hlab ntsha dav dav |
| P690QL | Tua thiab Tempered (Kub tsawg) | -40°C | Offshore & cryogenic |
| P690QL2 | Tua thiab Tempered (Kub tsawg heev) | -60°C | Arctic & sub-zero ib puag ncig |
Tag nrho cov qib no ua raws liEN 10028-6thiab tseem tuaj yeem muab rauASME/ASTM sib npaugraws li qhov kev thov. Txhua lub phaj lossis cov khoom los ntawmSAKYSTEELyog tag nrho traceable, muab nrog ib tugDaim ntawv pov thawj 3.1 lossis 3.2 EN 10204, thiab kuaj raws li cov qauv thoob ntiaj teb.
3. Cov Tshuaj Lom Zem
Lubtshuaj lom neeg muaj pes tsawg leegntawm P690 hlau yog sib npaug zoo kom ua tiav lub zog siab yam tsis muaj kev txi weldability lossis toughness. Ib qho ntau yam yog qhia hauv qab no:
| Khoom | Cov ntsiab lus (%) |
|---|---|
| Cov pa roj carbon (C) | 0.18 siab tshaj |
| Silicon (Si) | 0.50 siab tshaj |
| Manganese (Mn) | 0.60–1.70 |
| Phosphorus (P) | 0.025 siab tshaj |
| Sulfur (S) | 0.015 siab tshaj |
| Chromium (Cr) | 1.00–2.00 |
| Nickel (Ni) | 1.00–2.00 |
| Molybdenum (Mo) | 0.30–0.70 |
| Vanadium (V) | 0.08–0.20 |
LubKev sib xyaw ua ke ntawm Ni, Cr, thiab Momuab kev pabcuam zoo heevhardening thiab corrosion tsis kam, thaumcov ntsiab lus carbon tsawgua kom ntseeg tauzoo weldability.
4. Cov Khoom Siv Kho Tshuab
Qhov tseem ceeb ntawm P690 qib hlau yog nwskev ua tau zoo heev ntawm lub tshuabTom qab quenching thiab tempering, cov khoom siv muab qhov sib npaug ntawm cov khoom muaj zog, lub zog tensile, thiab toughness uas ua rau nws zoo tagnrho rau cov kev pabcuam hnyav.
| Vaj tse | Tus nqi ib txwm muaj |
|---|---|
| Lub Zog Tawm (MPa) | ≥690 |
| Lub zog Tensile (MPa) | 770–940 |
| Kev ntev (%) | 14–16 |
| Lub zog cuam tshuam (Charpy V-notch) | ≥60 J ntawm qhov kub thiab txias teev tseg |
| Qhov nyuaj (HBW) | ≤ 300 |
Txawm tias nyob rau hauv qhov kub qis, P690 tseem tswj taukev cuam tshuam toughness thiab ductility, tiv thaiv kev puas tsuaj brittle thiab ua kom ntseeg tau ntev.
5. Txheej Txheem Tsim Khoom
Kev tsim cov hlau P690 yuav tsum muajkev siv tshuab metallurgy siab heev thiab kev kho cua sov tswj taukom ua tiav nws cov qauv me me. Cov txheej txheem dav dav suav nrog:
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Kev yaj thawj zaug– Siv Lub Rauv Hluav Taws Xob Hluav Taws Xob (EAF) los yog Lub Rauv Pa oxygen (BOF).
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Kev ua kom zoo dua- Lub Tshuab Rauv Ladle (LF) thiab Lub Tshuab Nqus Pa (VD) kom tshem tawm cov khoom tsis huv.
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Kev Ua Yeeb Yam Txuas Ntxiv Mus- Tsim cov billets lossis slabs nrog cov qauv sib xws.
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Kub dov– Cov phaj raug dov mus rau qhov tuab uas xav tau (feem ntau yog 6–120 hli).
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Kev tua hluav taws- Txias sai kom ua tiav cov qauv martensitic.
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Kev ua kom sov- Tswj kev rov ua kom sov dua kom rov qab ua kom du thiab tawv.
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Kev Ntsuas Ultrasonic & Kev Ntsuas Nto- Xyuas kom cov phaj zoo meej ua ntej xa khoom.
SAKYSTEELsiv cov kab tsim khoom niaj hnub los lavqhov tseeb ntawm qhov ntev, qhov tiav ntawm qhov chaw, thiab kev sib xws ntawm cov khoom siv kho tshuabthoob plaws txhua pawg P690.
6. Kev Vuam thiab Kev Tsim Khoom
Txawm hais tias P690 hlau muaj lub zog siab, nws tseem nyobweldable siv cov txheej txheem ib txwm muajxws li SMAW, SAW, GTAW, lossis GMAW — yog tias tsim nyogkev kho cua sov ua ntej thiab tom qab vuam (PWHT)cov txheej txheem raug ua raws.
Cov Lus Qhia Txog Kev Vuam Tseem Ceeb:
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Ua kom sov rau 150–200 ° C kom txo qhov kev pheej hmoo ntawm hydrogen tawg
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Khaws qhov kub ntawm qhov chaw hla mus rau hauv qab 250 ° C
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Siv cov electrodes uas muaj hydrogen tsawg (piv txwv li, E11018-G)
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Ua PWHT ntawm 580–620 ° C rau kev txo kev ntxhov siab
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Xyuas kom txias qeeb tom qab vuam kom tiv thaiv kev ua kom tawv ntxiv
Kev tswj xyuas kom zoo thaum lub sijhawm vuam ua kom ntseeg taucov pob qij txha ruaj khov uas muaj kev pheej hmoo tsawg kawg ntawm kev tawg yooj yim lossis kev poob ntawm kev tawv.
7. Cov Ntawv Thov Ib Txwm Muaj
Kev sib xyaw ua ke ntawmlub zog siab, weldability zoo heev, thiab kev cuam tshuam toughnessua rau P690 zoo tagnrho rau cov chaw ua haujlwm engineering uas xav tau kev pab ntau. Cov ntawv thov feem ntau suav nrog:
1. Cov Hlab Ntsws Siab
Siv rau hauvkev lag luam roj, roj av, thiab tshuaj lom neegrau cov hlab ntsha uas tswj cov kev ntxhov siab sab hauv thiab cov xov xwm corrosive. Nws lub zog zoo dua tso cai rauphab ntsa nyias dua, txo qhov hnyav thiab nqi.
2. Cov Chaw Ua Haujlwm Offshore
Cov qib P690QL thiab P690QL2 feem ntau siv rau hauvcov khoom siv hauv hiav txwv, xws liceg, cov hlau txhawb nqa, thiab cov tsho loj, qhov twg qhov siab toughness thiab qis-kub kev ua tau zoo yog qhov tseem ceeb.
3. Boilers thiab Cov Khoom Sib Hloov Kub
Lub zog kub thiab ruaj khov ua rau P690 haum raucov nruas boiler thiab cov plhaub pauv cua sovua haujlwm nyob rau hauv kev ntxhov siab cyclic.
4. Cov Tshuab Hnyav thiab Cov Cranes
Siv rau hauvcov thav duab uas muaj lub nra hnyav, cov khoom nqa, thiabcov caj npab siv tshuab, P690 muab ob qho tib si muaj peev xwm thauj khoom siab thiab tiv taus kev qaug zog tsis ua haujlwm.
5. Kev Tiv Thaiv thiab Kev Siv Tub Rog
Hauv cov qauv nkoj lossis cov tsheb tiv thaiv, covlub zog-rau-qhov hnyav kom zoo duantawm P690 txhim kho kev tiv thaiv thaum txo qhov hnyav tag nrho.
8. Cov txiaj ntsig ntawm kev siv P690 Steel
Kev xaiv P690 muaj ntau yam kev ua tau zoo thiab cov txiaj ntsig kev lag luam piv rau cov hlau ib txwm muaj xws li P355 lossis P460.
Cov Kev Zoo Tseem Ceeb:
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Muaj Zog Siab:Tso cai rau cov qauv tsim nyias dua rau tib lub nra, txo qhov hnyav tag nrho.
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Kev vuam zoo heev:Tswj kev sib koom ua ke thaum kho kom zoo.
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Kev Ruaj Ntseg Zoo Tshaj Plaws:Tiv taus cov kev cuam tshuam dynamic thiab qis-kub.
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Kev Ruaj Kho Dua:Tiv taus kev qaug zog thiab kev ntxhov siab corrosion cracking.
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Kev Siv Nyiaj Zoo:Cov khoom siv tuab tsawg dua ua rau cov nqi tsim khoom thiab kev thauj mus los qis dua.
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Kev Pab Cuam Ntev:Kev ua tau zoo txhim khu kev qha nyob rau hauv qhov chaw ua haujlwm hnyav.
SAKYSTEELmuab cov khoom lag luam P690 uas tau kho kom haum raws li qhov xav taucov kev cai tshwj xeeb rau qhov project— los ntawm lub phaj tuab thiab qhov chaw tiav mus rau qhov cuam tshuam toughness thiab qib ntawv pov thawj.
9. Kev Sib Piv Nrog Lwm Cov Hlau Tsim Kho
| Vaj tse | P355 | P460 | P690 |
|---|---|---|---|
| Lub Zog Tawm (MPa) | 355 | 460 | 690 |
| Kev Kho Mob Kub | Ua kom zoo li qub | Ua kom zoo li qub | Tua thiab Tempered |
| Kev vuam tau | Zoo heev | Zoo | Yuav tsum tau tswj ua ntej kom sov |
| Daim Ntawv Thov | Cov nkoj dav dav | Nruab nrab-siab | Kev kub siab, tawm ntawm ntug dej hiav txwv |
| Kev Ua Haujlwm Zoo ntawm Qhov Hnyav | Nruab nrab | Zoo | Zoo heev |
Raws li qhia,P690 muab yuav luag ob npaug ntawm lub zog tso zisntawm P355, tso cai rau cov neeg tsim qauv los tsim cov hlab ntsha siab dua tab sis muaj zog dua thiab cov khoom siv hauv hiav txwv.
10. Kev Pov Thawj Zoo thiab Daim Ntawv Pov Thawj
Txhua lub phaj thiab cov khoom muab los ntawmSAKYSTEELua raws li kev cai nrujkev kuaj xyuas thiab kev tshuaj xyuasua ntej xa khoom:
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Kev kuaj ultrasonic (UT) thiab kev kuaj xyuas qhov tsis zoo ntawm qhov chaw
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Kev ntsuam xyuas tensile, kev cuam tshuam, thiab kev nyuajraws li EN 10028-6
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Kev txheeb xyuas kev kho cua sov(Cov ntaub ntawv Q&T voj voog)
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Kev tshuaj xyuas qhov ntev thiab kev sim qhov tiaj tiaj
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EN 10204 3.1 / 3.2 Daim ntawv pov thawj
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Kev tshuaj xyuas los ntawm lwm tus neeg (Lloyd's, DNV, SGS, TUV) raws li qhov kev thov
SAKYSTEEL tswj hwm tag nrhokev taug qab los ntawm cov khoom siv raw mus rau cov khoom tiav, ua kom muaj kev ntseeg siab tag nrho rau txhua tus neeg siv khoom.
11. Cov Ntawv Khoom Muaj
P690 qib hlau tuaj yeem muab tau ntau yam khoom lag luam nyob ntawm qhov xav tau ntawm qhov project:
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Cov Phaj: 6–120 hli tuab
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Cov blocks forged
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Flanges thiab fittings
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Cov hlau dov
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Txiav cov profiles thiab cov duab prefabricated
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Cov khoom siv ua raws li kev cai
Txhua tus muaj nrogdaim ntawv pov thawj cog qoob loo, cov ntim khoom xa tawm, thiab cov ntawv qhia kev tshuaj xyuasnpaj txhij rau kev xa khoom thoob ntiaj teb.
12. Cov Lus Qhia Txog Kev Khaws Cia thiab Kev Siv
Txhawm rau kom khaws cia kev ua haujlwm ntawm P690 hlau ua ntej kev tsim khoom, yuav tsum tau saib xyuas raukev tuav thiab khaws cia kom zoo:
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Khaws cov phaj rau hauv qhov chaw qhuav, npog kom tiv thaiv kev xeb.
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Tsis txhob muab cov hlau sib txawv sib xyaw ua ke kom tiv thaiv tau cov tshuaj tiv thaiv galvanic.
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Siv cov cuab yeej tsa mos mos kom tiv thaiv cov cim lossis qhov lwj ntawm qhov chaw.
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Siv cov roj tiv thaiv ib ntus rau kev khaws cia mus ntev.
Cov kev coj ua no pab tswj qhov zoo ntawm qhov chaw thiab kev ntseeg tau ntawm cov khoom siv kho tshuab kom txog thaum pib ua tiav.
13. Kev Muab Khoom thiab Kev Thauj Mus Los Thoob Ntiaj Teb
Nrog kaum xyoo ntawm kev paub txog kev xa khoom tawm,SAKYSTEELpabcuam cov neeg siv khoom hauvTebchaws Europe, Middle East, Southeast Asia, thiab South AmericaPeb pab neeg logistics muab kev pabcuamkev xa khoom los ntawm qhov rooj mus rau qhov rooj, txhawb nqa Incoterms xws liFOB, CFR, CIF, thiab DAP.
Peb kuj tuaj yeem npaj tau:
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Cov kev pabcuam txiav raws li qhov loj me
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Kev ntim khoom xa tawm tshwj xeeb
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Kev xa daim ntawv pov thawj kuaj xyuas zeb sai
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Cov sijhawm tsim khoom yooj ywm rau cov haujlwm ceev ceev
SAKYSTEEL cog lus tias yuav muab kev pabcuam zoo tshaj plaws rau kojcov ntaub ntawv txhim khu kev qha thiab xa khoom raws sijhawm, pab peb cov neeg koom tes ua tiav cov haujlwm kom zoo thiab muaj kev ntseeg siab.
14. Cov Lus Nug Feem Ntau (FAQ)
Q1: P690 siv rau dab tsi?
A1: P690 feem ntau yog siv rau hauvcov hlab ntsha siab, cov qauv hauv dej hiav txwv, thiab cov khoom siv thauj khoom muaj zogxav tau lub zog thiab kev tawv nqaij zoo dua.
Q2: P690 puas tuaj yeem vuam tau?
A2: Yog lawm, nws tuaj yeem vuam siv cov txheej txheem ib txwm muaj, tab sispreheating thiab PWHTyog qhov tsim nyog los tiv thaiv kev tawg.
Q3: Qhov txawv ntawm P690Q thiab P690QL2 yog dab tsi?
A3: Qhov sib txawv yog nyob rau hauvqhov kub thiab txias ntawm kev sim— Q raug sim ntawm 0°C, QL ntawm -40°C, thiab QL2 ntawm -60°C.
Q4: Puas yog SAKYSTEEL muab daim ntawv pov thawj?
A4: Tseeb tiag. Tag nrho cov ntaub ntawv raug xa tuaj nrogDaim ntawv pov thawj EN 10204 3.1 lossis 3.2, thiabkev tshuaj xyuas sab nraudtuaj yeem npaj tau raws li qhov kev thov.
Q5: P690 puas hloov tau Inconel lossis Duplex steels?
A5: Tsis yog ncaj qha - P690 muaj lub zog zoo ib yam li qee qib duplex tab sis tsis muaj lawv qhov kev tiv thaiv corrosion. Nws yog qhov zoo tshaj plaws rau lub zog ntawm cov qauv, tsis yog rau cov chaw muaj tshuaj lom neeg hnyav.
15. Xaus Lus
P690 qib hlausawv cev rau tiam neeg tshiab ntawmcov ntaub ntawv quenched thiab tempered muaj zog heevtsim los rau cov ntawv thov engineering tseem ceeb. Nws sib xyaw ua ke690 MPa lub zog tawm los, zoo heev toughness, thiabtswj tau qhov vuam tauua rau nws tsis tseem ceeb raucov hlab ntsha siab, cov platforms offshore, thiab cov khoom siv hnyavthoob ntiaj teb.
Los ntawm kev xaivSAKYSTEEL, koj tau txais kev nkag mus rau:
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Kev zoo sib xws tau ntawv pov thawj raws li cov qauv thoob ntiaj teb
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Kev xaiv tsim khoom thiab kev tshuaj xyuas tshwj xeeb
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Kev xa khoom thoob ntiaj teb thiab kev txhawb nqa kev txawj ntse
Nrog kev tsim kho tshiab tas mus li thiab kev cog lus rau kev ua tau zoo tshaj plaws,SAKYSTEELtseem yog koj litus khub ntseeg siab hauv kev daws teeb meem hlau muaj zog siab.
Lub sijhawm tshaj tawm: Lub Kaum Hli-24-2025