ASME SA387 Gr.22 kub resistant alloy steel phaj yog dab tsi?
ASME SA387 Qib 22 kub resistant alloy steel phajyog 2.25Cr-1Mo chromium-molybdenum siab hlab ntsha steel tsim raws li ASME SA387 / ASTM A387 specification, ua rau nws zoo tagnrho rau elevated -kub welded siab hlab ntsha. Tsim tshwj xeeb rau kev ua haujlwm ntev -lub sijhawm ua haujlwm nyob rau hauv qhov kub thiab txias siab, cov phaj hlau no nthuav qhia tshwj xeeb siab tshaj - qhov kub thiab txias zog, creep tsis kam, oxidation tsis kam, thiab weldability, ua rau nws yog ib qho ntawm feem ntau siv Cr-Mo steels nyob rau hauv cov roj refining, petrochemical, thiab fais fab kev lag luam.
Piv nrog cov pa roj carbon steel daim hlau, peb SA387 Gr. 22 muaj kev ruaj ntseg zoo tshaj plaws ntawm qhov kub siab. Nws yog feem ntau siv rau hauv cov khoom siv ua haujlwm nyob rau hauv qhov kub ntawm 450℃txog 600 degree, qhov twg creep kuj yog qhov tsim nyog tsim nyog.. Qhov sib ntxiv ntawm 2.25% Chromium txhim kho nws txoj kev tiv thaiv oxidation thiab corrosion, thaum lub 1.0% Molybdenum ntxiv boosts nws elevated - kub lub zog thiab ntev -lub sij hawm creep-rupture resistance.
Raws li kev paub txog lub siab lub nkoj steel phaj tsum, GNEE Steel muab SA387 Qib 22 daim hlau nrog tag nrho cov ntaub ntawv traceability, kev cai fabrication, thiab thib peb-kev soj ntsuam tog (TPI) kev txhawb nqa, pab cov neeg siv khoom ua tau raws li kev nruj ASME fabrication thiab cov kev xav tau zoo rau kev nce siab -kub siab ntawm cov hlab ntsha.
Kev ua tau zoo ntawm ASME SA387 Gr.22 tshav kub resistant alloy steel phaj
Zoo heev elevated -Temperature Strength
ASME SA387 Gr. 22 yog 2.25Cr{12}}1Mo alloy steel tsim rau cov hlab ntsha siab ua haujlwm ntawm 450-600 degree. Nrog rau qhov tsawg kawg nkaus lub zog ntawm 310 MPa thiab lub zog tensile ntawm 585-760 MPa, Qib 22 Chav Kawm 2 muab kev ruaj ntseg ruaj khov thiab ruaj khov ntawm cov qauv hauv lub sijhawm ntev - lub sijhawm, kev pabcuam siab-kub.
Superior Ntev -Lub Sij Hawm Creep Resistance
Thaum normalizing thiab tempering, SA387 Gr. 22 steel tsim ib tug ruaj khov tempered bainitic los yog bainitic-ferritic matrix, uas txhim kho nws qhov ntev - lub sij hawm creep tsis kam. Nws yog dav siv nyob rau hauv siab siab - cov cuab yeej kub siab tsim los rau lub neej kev pab cuam txog li 100,000 xuab moos, txuas cov cuab yeej siv lub neej ntev thiab txhawb kev ntseeg tau.
Kev ua haujlwm zoo rau siab -Tub kub Hydrogen Attack (HTHA)
Lub 2.25Cr-1Mo alloy system muaj kev tiv thaiv zoo dua rau siab -kub hydrogen nres (HTHA) piv rau cov pa roj carbon steels. Rau cov ntawv thov kev pabcuam hydrogen, SA387 Gr. 22 raug xaiv raws li API RP 941 (Nelson Curves) thiab siv dav hauv hydrotreating reactors thiab high-pressure separators.
Weldability zoo heev rau Pressure Vessel Fabrication
SA387 Gr. 22 steel pom zoo weldability thaum ua raws li cov txheej txheem vuam zoo. Preheating (feem ntau ntawm 150–200 degree) thiab Post-Weld Heat Treatment (PWHT) yog tus qauv pom zoo kom txo tau qhov kev pheej hmoo ntawm kev ncua hydrogen crackingthiab xyuas kom lub sijhawm ntev - kev ncaj ncees ntawm cov pob qij txha welded.
Superb Formability thiab Fabrication Peev Xwm
SA387 Gr. 22 steel tuaj yeem ua tiav siv CNC txiav, dov, kub sib sau, txias sib sau, flanging, thiab tais diav, ua rau nws zoo tagnrho rau fabricating complex hlab ntsha. GNEE tseem muaj kev txiav txiav, beveling, kuaj ultrasonic (UT), thiab cov kev pabcuam machining los ua kom zoo dua fabrication efficiency thiab luv lub sijhawm ua haujlwm.
Xaiv qhov tsim nyog chromium-molybdenum (Cr-Mo) qib steel qib thaum lub sij hawm tsim qauv tuaj yeem txo cov nqi tu lub neej thiab txhim kho cov cuab yeej kev ntseeg siab. Peb pab neeg ua haujlwm engineering pab cov neeg siv khoom hauv kev ntsuas qhov kub thiab txias ua haujlwm, hydrogen ib feem ntawm lub siab, thiab siv cov qauv tsim kom pom zoo xaiv cov khoom tsim nyog tshaj plaws ua ntej yuav khoom.
ASME SA387 Gr.22 kub resistant alloy steel phaj Specification
| Yam khoom | Specification |
|---|---|
| Khoom npe | ASME SA387 Gr.22 Thaum tshav kub kub Resistant Alloy Steel Phaj |
| Hom khoom | Chromium-Molybdenum (Cr-Mo) Alloy Steel Phaj |
| Qib Steel | Qib 22 Qib 1 / Qib 22 Qib 2 |
| Alloy Composition | 2.25% Chromium (Cr), 1.0% Molybdenum (Mo) |
| Txuj | ASME SA387 / ASTM A387 Cov Lus Qhia |
| Thickness Ntau | 6-300 hli |
| Dav Ntau | 1,500–4,000 mm |
| Ntev Ntau | 3,000–18,000 mm |
| Daim ntawv pov thawj | EN 10204 Hom 3.1 / 3.2, Mill Test Certificate (MTC) |
| Thib peb-Kev soj ntsuam tog | SGS, TÜV, BV, LR, DNV, ABS |
| Kev Pabcuam | CNC txiav, Beveling, Drilling, Rolling, Nplaim Txiav, Ntug Npaj |
| Ntim | Export Seaworthy Packing nrog Hlau Strapping thiab Kev Tiv Thaiv Moisture |
ASME SA387 Gr.22 tshav kub resistant alloy steel phaj Chemical Composition
| Cov ntsiab lus % | ||
|---|---|---|
| TIAB SA 387 Qib 22 |
||
| Cov pa roj carbon, max: | ||
| Kev ntsuas kub | 0.05-0.15A | |
| Kev tshuaj xyuas cov khoom | 0.04-0.15A | |
| Manganese, max: | ||
| Kev ntsuas kub | 0.30-0.60 | |
| Kev tshuaj xyuas cov khoom | 0.25-0.66 | |
| Phosphorus, max: | ||
| Kev ntsuas kub | 0.025 | |
| Kev tshuaj xyuas cov khoom | 0.025 | |
| Sulfur, max: | ||
| Kev ntsuas kub | 0.025 | |
| Kev tshuaj xyuas cov khoom | 0.025 | |
| Silicon: | ||
| Kev ntsuas kub | 0.50 max | |
| Kev tshuaj xyuas cov khoom | 0.50 max | |
| Chromium: | ||
| Kev ntsuas kub | 2.00-2.50 | |
| Kev tshuaj xyuas cov khoom | 1.88-2.62 | |
| Molybdenum: | ||
| Kev ntsuas kub | 0.90-1.10 | |
| Kev tshuaj xyuas cov khoom | 0.85-1.15 | |
Nco tseg:Kev Ntsuas Kubsawv cev rau cov tshuaj muaj pes tsawg leeg txiav txim los ntawm ladle sampling thaum lub sij hawm steelmaking theem, whereasKev tshuaj xyuas khoomsawv cev rau cov kev hloov pauv uas tau tso cai los ntawm cov qauv coj los ntawm cov hlau phaj tiav lawm -qhov kawg feem ntau nthuav tawm qhov siab ntev dua li qhov qub vim yog yam xws li kev sib cais.
ASME SA387 Gr.22 tshav kub resistant alloy steel phaj Mechanical Property
|
Qib |
Thickness |
Yield zog |
Lub zog tensile |
Elongation hauv 2 "1) |
Kev txo qis ntawm cheeb tsam 2) |
|---|---|---|---|---|---|
|
Qib 22 Chav Kawm 1 |
0.185 - 3.60 |
30 |
60 - 85 |
18 |
40 |
|
Qib 22 Chav Kawm 2 |
0.185 - 3.60 |
45 |
75 - 100 |
18 |
40 |
Kev kho cua sov thiab ua kom siab -Tsuas Khoom ntawm ASME SA387 Gr.22
Normalizing thiab Tempering (N + T)
Peb ASME SA387 Gr. 22 Chav Kawm 2 daim hlau yog tus qauv muab rau hauv qhov xwm txheej Normalized thiab Tempered (N + T). Qhov kev ua kom sov no ua kom zoo dua cov qauv nplej thiab txhim kho cov qauv ruaj khov ntawm tempered bainite thiab ferrite, kom ntseeg tau tias qhov muaj zog tsawg kawg nkaus ntawm 310 MPa thiab lub zog tensile ntawm 585-760 MPa, thaum lub sij hawm ua ke txhim kho toughness thiab ntev - lub sij hawm creep kuj.
Annealed mob
Peb ASME SA387 Qib 22 Chav Kawm 1 steel feem ntau yog muab rau hauv cov xwm txheej Annealed, uas muab lub zog qis dua tab sis ua haujlwm zoo dua thiab tsim kom muaj kev thov tsawg dua. Nws nquag siv qhov uas siab siab - qhov kub thiab txias tsis yog qhov yuav tsum tau ua.
Tshaj tawm -Kev kho cua sov (PWHT)
Vim yog 2.25% Chromium thiab 1.0% Molybdenum cov ntsiab lus hauv SA387 Gr. 22 steel, post-weld heat treatment (PWHT)yog tus qauv ua tiav tom qab vuam los txo cov kev ntxhov siab uas seem, ua kom sov- thaj chaw cuam tshuam (HAZ), thiab txo qhov kev pheej hmoo ntawm kev ncua hydrogen tawg.
Tshwj xeeb Thermal Resistance
CovCr-Moalloy system enables ASME SA387 Gr. 22 kom muaj kev ruaj ntseg txhua yam khoom thaum lub sij hawm ntev - kev pab cuam ntawm 450-600℃. Chromium txhim khu kev tiv thaiv oxidation thiab scaling, thaum molybdenum boosts creep zog, ua rau cov khoom no zoo heev haum rau reactors, tshav kub exchangers, chav nruas, thiab lwm yam siab - kub, siab - cov khoom siv siab.
Txhua lub phaj SA387 Qib 22 muab los ntawm GNEE tuaj yeem xa tuaj rau hauv qhov xav tau cua sov- kho mob nrog cov ntaub ntawv ua kom sov ua tiav, cov kab kos kho cua sov, thiab EN 10204 Hom 3.1 ntawv pov thawj, ua kom tag nrho traceability rau siab hlab ntsha fabrication tej yaam num.
ASME SA387 Gr.22 tshav kub resistant alloy steel phaj Hom kev siv
Kev lag luam Petrochemical
SA387 Gr.22 yog dav siv nyob rau hauv hydrotreaters, hydrocrackers, reactor hlab ntsha, fractionation towers, thiab siab - kub exchangers.
Thermal fais fab nroj tsuag
Nyob rau hauv thermal fais fab nroj tsuag, SA387 Gr.22 yog feem ntau teev rau boiler chav nruas, superheater headers, reheater headers, thiab siab - siab chav piping.
Fertilizer thiab tshuaj ua haujlwm
SA387 Gr.22 yog siv dav hauv ammonia converters, hloov reactors, siab hlab ntsha, thiab plhaub -thiab- raj kub exchangers.
Roj & Roj Ua Haujlwm
Rau cov khoom siv roj thiab roj, SA387 Gr.22 yog cov khoom siv zoo tshaj plaws rau siab - cov khoom sib cais, roj ua cov hlab ntsha, cov nruas nrawm, thiab cov txheej txheem cua sov.
Vim li cas thiaj xaiv peb?
Kev Tshawb Fawb Kev Tshawb Fawb
Kev tshuaj xyuas zoo suav nrog kev tshuaj xyuas cov tshuaj muaj pes tsawg leeg, ntsuas tensile, kuaj hardness, kuaj ultrasonic (ASTM A578), kev tshuaj xyuas qhov ntev, thiab kev tshuaj xyuas qhov muag pom. Thib peb-kev soj ntsuam tog los ntawm SGS, TÜV, BV, DNV, lossis LR kuj muaj kom tau raws li qhov project specifications.
Customized Processing Solutions
Ntxiv rau kev muab cov ntawv hlau, GNEE muab CNC nplaim taws txiav, txiav ntshav, beveling, drilling, ntug npaj, dov, thiab kos npe. Customized dimensions pab txo cov khoom pov tseg, lub sij hawm machining, thiab fabrication nqi rau lub siab lub nkoj manufacturers.
Kev ntseeg tau cov khoom muag thiab kev xa khoom thoob ntiaj teb
Ntau yam ntawm cov qauv thicknesses thiab cov phaj loj yog khaws cia los txhawb cov phiaj xwm ceev. Nrog rau kev nthuav dav dav, GNEE muab seaworthy ntim, ntim lossis ntim cov nkoj thauj khoom, thiab ua tiav cov ntaub ntawv xa tawm, ua kom muaj txiaj ntsig zoo rau cov neeg siv khoom thoob ntiaj teb.
Tau Txais Daim Ntawv Tso Cai Dawb
FAQ
Q: Dab tsi yog qhov sib txawv ntawm SA387 Gr.22 thiab Gr.11 (1.25Cr-0.5Mo)?
A: SA387 Qib 22 (2.25Cr-1Mo) thiab Qib 11 (1.25Cr-0.5Mo) yog ob qho tib si chromium-molybdenum alloy siab hlab ntsha steels. Thawj qhov sib txawv yog nyob rau hauv lawv cov ntsiab lus alloy-Gr.22 muaj ob npaug ntawm cov chromium thiab molybdenum-uas muab Gr.22 qhov kub thiab txias tensile zog thiab creep tsis kam rau kev siv loj heev.
Q: Yuav ua li cas ib tug xaiv ntawm SA387 Gr.22 Class 1 thiab Class 2? Puas yog lawv interchangeable?
A: Xaiv Chav Kawm 2 rau siab - kev ntxhov siab lossis thinner - cov hlab ntsha siab uas yuav tsum muaj lub zog siab tshaj plaws. Xaiv Chav Kawm 1 rau cov ntawv thov uas ntau dua ductility, tsim tau yooj yim dua, thiab zoo dua weldability yog qhov tseem ceeb. Lawv tsis tuaj yeem hloov pauv ncaj qha rau hauv kev tsim qauv suav nrog vim muaj qhov sib txawv ntawm qhov tso cai rau kev ntxhov siab.
Q: Dab tsi yog qhov zoo ntawm SA387 Gr.22 piv rau Gr.21?
A: SA387 Qib 22 nta cov ntsiab lus chromium thiab molybdenum siab dua (2.25% Cr, 1.00% Mo) dua qib 21 (3.00% Cr, 1.00% Mo). Nws cov txiaj ntsig tseem ceeb suav nrog kev siab dua -kub creep tsis kam, zoo dua oxidation kuj nyob rau hauv huab cua kub, thiab muaj zog tiv thaiv hydrogen nres hauv petrochemical ua.
Q: Puas yog Gr.22 (2.25Cr-1Mo) thiab SA516 Gr.70 (C-Mn carbon steel) hloov tau rau ib leeg?
A: Gr.22 (2.25Cr-1Mo) thiab SA516 Gr.70 tsis tuaj yeem hloov pauv rau ib leeg. Thaum ob qho tib si siv hauv cov hlab ntsha siab, Qib 22 yog cov hlau alloy uas tsim los rau siab -kub creep tsis kam, whereas SA516 Gr.70 yog carbon-manganese steel txhais tau tias rau qis- mus rau nruab nrab kub kev pab cuam.
Q: Yuav ua li cas ib tug yuav tsum xaiv ntawm SA387 Gr.22 thiab Gr.91 rau siab - kub kev pab cuam tej yam kev mob?
A: Thaum xaiv ntawm SA387 Gr. 22 thiab Gr. 91, ib qho yuav tsum hnyav yam xws li qhov kub thiab txias, lub zog siv tshuab, thiab kev tsim khoom nyuaj. Gr. 91 yog Creep Strength Enhanced Ferritic (CSEF) steel tshwj xeeb uas tsim los rau kev ua haujlwm siab dua, qhov Gr. 22 yog cov pa 2¼Cr-1Mo alloy haum rau cov kev pabcuam me me.
