ASME SA387 Gr.91 Chrome Moly Steel Phaj yog dab tsi
ASME SA387 Qib 91 chrome moly steel phaj yog 9Cr-1Mo-V-N chromium-molybdenum alloy steel phaj tsim tshwj xeeb rau kev siab-kub welded siab hlab ntsha thiab boilers. Piv nrog rau cov pa Cr-Mo steel qib xws li SA387 Qib 11 thiab Qib 22, Qib 91 steel phaj nthuav tawm qhov ua tau zoo ntawm kev nkag siab, oxidation tsis kam, thiab ntev -lub sij hawm thermal stability, ua rau nws cov khoom xaiv rau siab-kub.kev siv hluav taws xob tsim hluav taws xob thiab petrochemical kev lag luam. Nws qhov kub siab tshaj -Kev ua tau zoo yog muab los ntawm tempered martensitic microstructuretsim los ntawm normalizing thiab tempering, nrog rau nag lossis daus ntxiv los ntawm vanadium, niobium, thiab nitrogen.
NtawmGNEE Steel, txhua qhov ntawm peb SA387 Gr. 91 steel daim hlau yog tsim los ntawm kev tswj xyuas nruj thiab tuaj yeem muab tau nrog EN 10204 3.1/3.2 ntawv pov thawj, kuaj ultrasonic (UT) cov ntaub ntawv, thiab cov ntaub ntawv qhia txog cov cuab yeej cuab tam. Qhov no ua kom ntseeg tau cov khoom siv tau zoo hauv cov ntawv thov, suav nrog cov boilers supercritical, hydrotreating reactors, heat exchangers, thiab elevated -kubcov hlab ntsha siab.
Dab tsi muab ASME SA387 Gr.91 Zoo Tshaj Plaws Siab -Tsub Muaj Zog?
Optimized 9Cr-1Mo Alloy Tsim
SA387 Gr. 91 yog hloov kho 9% Chromium - 1% Molybdenum alloy steel nrog tswj kev ntxiv ntawm vanadium (V), niobium (Nb), thiab nitrogen (N). Cov microalloying cov ntsiab lus no txhawb nqa nws txoj kev nkag siab thiab ntev - lub sij hawm thermal stability.
Tempered Martensitic Microstructure
ThaumNormalizing thiab Tempering, SA387 Gr. 91 steel txhim kho qhov ruaj khov tempered martensitic microstructure, uas yog suav tias yog qhov tseem ceeb rau nws qhov siab tshaj - qhov kub thiab txias. Muab piv rau cov pa ferrite-pearlite microstructures feem ntau pom nyob rau hauv qis- alloy Cr-Mo steels, tempered martensitic matrix muab lub zog tawm los ntau dua, kev nkag siab zoo dua - tawg tsis kam, thiab zoo heev microstructural stability thaum lub sij hawm ntev - kev pab cuam.
Kev ruaj ntseg Carbide Strengthening Mechanism
Nws ntev -lub sij hawm creep kuj yog ntxiv txhim kho los ntawm nag lossis daus ntawmM23C6carbides raws li ua ntej austenite grain ciam teb thiab npluaMXcarbonitride precipitates nyob rau hauv lub martensitic laths. Qhov kev txhawb zog los nag lossis daus no yog ib qho ntawm cov laj thawj tseem ceeb ntawm Qib 91 steel yog dav siv hauv kev siab siab - cov cuab yeej kub siab.
Kev kho cua sov ntawm ASME SA387 Gr.91 Chrome Moly Steel Phaj
Qhov tshwj xeeb nce siab -kub kev ua haujlwm ntawm ASME SA387 Gr. 91 nyob ntawm tsis yog tsuas yog nyob ntawm nws cov tshuaj muaj pes tsawg leeg xwb tab sis kuj muaj kev tswj xyuas meej.Normalizing thiab Tempering (N + T)txheej txheem. Kev kho cua sov kom tsim nyog tsim kom muaj qhov ruaj khov tempered martensitic microstructure, uas yog qhov tseem ceeb rau kev ua tiav cov creep kuj, lub zog, thiab toughness yuav tsum tau rau siab - kub, siab - siab (HTHP)kev pabcuam.
Lub voj voog kho cua sov raug suav nrognormalizingntawm kwv yees1040-1080 degree, ua raws liTemperingntawm730-800 degree, ua raws li cov cai ntawm ASTM A387 / ASME SA387 tus qauv. Kev tswj nruj ntawm cov cua sov, lub sij hawm ntub dej, thiab cov nqi cua txias yog qhov tseem ceeb kom ntseeg tau tias microstructural uniformity thiab zoo ib yam khoom siv los ntawm cov phaj tuab..
Ntawm GNEE Steel, txhua SA387 Gr. 91 steel phaj yog nkag rau hauv qhov xwm txheej thiab tempered (N + T), nrog rau kev ua tiavCov ntaub ntawv kho cua sovthiab cov ntawv ceeb toom kev ntsuam xyuas txhua yam los lav tag nrho ua raws li qhov project specifications.
Tshuaj muaj pes tsawg leeg ntawm ASME SA387 Gr.91 Chrome Moly Steel Phaj
| Lub ntsiab | Tshuaj muaj pes tsawg leeg (%). | |
| SA387 Qib 91 | ||
| Cov pa roj carbon: | Kev Ntsuas Kub: | 0.08 - 0.12 |
| Product Analysis: | 0.06 - 0.15 | |
| Manganese: | Kev Ntsuas Kub: | 0.30 - 0.60 |
| Product Analysis: | 0.25 - 0.66 | |
| Phosphorus: | Kev Ntsuas Kub: | 0.020 |
| Product Analysis: | 0.025 | |
| Sulfur (max): | Kev Ntsuas Kub: | 0.010 |
| Product Analysis: | 0.012 | |
| Silicon: | Kev Ntsuas Kub: | 0.20 - 0.50 |
| Product Analysis: | 0.18 - 0.56 | |
| Chromium: | Kev Ntsuas Kub: | 8.00 - 9.50 |
| Product Analysis: | 7.90 - 9.60 | |
| Molybdenum: | Kev Ntsuas Kub: | 0.85 - 1.05 |
| Product Analysis: | 0.80 - 1.10 | |
| Nickel, max: | Kev Ntsuas Kub: | 0.40 |
| Product Analysis: | 0.43 | |
| Vanadium: | Kev Ntsuas Kub: | 0.18 - 0.25 |
| Product Analysis: | 0.16 - 0.27 | |
| Columbium: | Kev Ntsuas Kub: | 0.06 - 0.10 |
| Product Analysis: | 0.05 - 0.11 | |
| Nitrogen: | Kev Ntsuas Kub: | 0.030 - 0.070 |
| Product Analysis: | 0.025 - 0.080 | |
| Aluminium: | Kev Ntsuas Kub: | 0.02 |
| Product Analysis: | 0.02 | |
| Titanium: | Kev Ntsuas Kub: | 0.01 |
| Product Analysis: | 0.01 | |
| Zirconium: | Kev Ntsuas Kub: | 0.01 |
| Product Analysis: | 0.01 |
Mechanical Property ntawm ASME SA387 Gr.91 Chrome Moly Steel Phaj
| Lub npe: | Yuav tsum muaj: | Qib 91 |
| SA387 Qib 91 | Tensile zog, ksi [MPA] | 85 txog 110 [585 rau 760] |
| Yield zog, min, ksi [MPa]/(0.2% offset) | 60 [415] | |
| Elongation hauv 8 nti. [200mm], min % | ... | |
| Elongation hauv 2 nti. [50mm], min, % | 18 | |
| Txo thaj tsam, min% | ... |
Specification ntawm ASME SA387 Gr.91 Chrome Moly Steel Phaj
| Yam khoom | Specification |
|---|---|
| Khoom npe | ASME SA387 Qib 91 Chrome Moly Steel Phaj |
| Txuj | ASME SA387 / ASTM A387 Cov Lus Qhia |
| Qib | Qib 91 |
| Chav kawm | Chav kawm 2 |
| Hom hlau | 9Cr-1Mo-V-N Chromium-Molybdenum Alloy Steel |
| Kev Xa Khoom | Normalized thiab Tempered (N + T) |
| Thickness Ntau | 5-200 hli |
| Dav Ntau | 1,000–4,000 mm |
| Ntev Ntau | 3,000–18,000 mm |
| Thib peb-Kev soj ntsuam tog | SGS, TÜV, BV, Lloyd's Register, DNV, ABS |
| Cov ntaub ntawv pov thawj | EN 10204 3.1 / 3.2 |
| Keeb kwm | Tuam Tshoj |
Xaiv lub siab lub nkoj steel tsuas yog nyob rau hauv chav tsev -kub tensile lub zog tsis txaus rau elevated - kub kev pab cuam. GNEE muab SA387 Gr.91 daim hlau nrog cov cua sov ua kom tiav- cov ntaub ntawv kho mob, EN 10204 3.1/3.2 ntawv pov thawj, thiab thib peb- kev txhawb nqa kev soj ntsuam tog, pab cov neeg siv khoom txo cov khoom tsim nyog thiab tsim kev pheej hmoo.
Cov txiaj ntsig ntawmASME SA387 Gr.91 Chrome Moly Steel Phaj
High Strength & Efficiency
Kev ua haujlwm siab
Lub Neej Ntev Ntev
Flawless tiav
Durable
Corrosion Resistant Lub Cev
Kub kub Resistant Lub Cev
Weldability zoo
Hom Siab-Tsuas siv ntawm ASME SA387 Gr.91 Chrome Moly Steel Phaj
Ultra{0}}Supercritical Boilers
Hauv ultra-supercritical fais fab nroj tsuag, chav ntsuas kub feem ntau tshaj 593℃. SA387 Gr.91 feem ntau yog siv rau lub taub hau taub hau, boiler siab qhov chaw, thiab siab -kub piping Cheebtsam.
Petrochemical thiab Refining Equipment
Rau hydroprocessing reactors, hydrocrackers, thiab siab -kub desulfurization units, Qib 91 muab cov thermal stability uas yuav tsum tau rau siab -kub hydrogen kev pab cuam.
Heat Recovery Steam Generators (HRSGs)
Ua ke- lub voj voog fais fab nroj tsuag siv SA387 Gr.91 rau HRSG siab Cheebtsam, qhov uas rov qab thermal cycling thiab siab chav kub xav tau zoo heev tiv thaiv creep deformation thiab thermal qaug zog.
Siab -Tsuas Kub Siab Nkoj
SA387 Gr.91 kuj raug xaiv rau cov khoom siv hluav taws xob sib txawv, cov khoom sib cais, thiab cov hlab ntsha siab ua haujlwm ntawm qhov kub siab.
Vim li cas thiaj xaiv peb?
Certified Zoo- SA387 Gr.91 daim hlau tau muab nrog EN 10204 3.1 cov ntaub ntawv pov thawj, nrog 3.2 ntawv pov thawj muaj nyob rau ntawm kev thov. Kev ntsuam xyuas tshuab thiab tshuaj lom neeg muaj pes tsawg leeg yog ua raws li ASTM / ASME cov cai.
Kev tshuaj ntsuam xyuas- Kev sim xaiv muaj xws li ASTM A578 ultrasonic kuaj (UT), PMI (Positive Material Identification), kev ntsuam xyuas kev cuam tshuam (thaum teev), thiab thib peb- kev tshuaj xyuas los ntawm SGS, TÜV, BV, DNV, lossis Lloyd's Register.
Kev ua raws cai- CNC nplaim taws txiav, ntug npaj, beveling, thiab customized qhov ntev yog muaj los txo fabrication lub sij hawm rau siab nkoj manufacturers.
Txhim khu kev xa khoom thoob ntiaj teb- Export- ntim cov qauv, cov kev daws teeb meem yooj yim logistics, thiab cov ntaub ntawv ua tiav pab kom muaj kev nyab xeeb kev thauj mus los thiab kev lis kev cai zoo.
Kev pab txhawb nqa- Peb pab neeg ua haujlwm engineering muab kev pab xaiv cov khoom siv, kev tshuaj xyuas tshwj xeeb, thiab cov ntaub ntawv thev naus laus zis thoob plaws hauv txheej txheem kev yuav khoom.
Tau Txais Daim Ntawv Tso Cai Dawb
FAQ
Q: SA387 Gr.91 vs SA387 Gr.22: Cov hlau phaj twg zoo dua rau siab -kev pabcuam kub?
A: Rau ultra-siab- kev pabcuam kub, SA387 Gr.91 feem ntau zoo dua. Nws ua haujlwm kub txog li 600℃(1112℃F) thiab muaj zog nkag tau zoo dua. Hauv qhov sib piv, SA387 Gr.22 feem ntau txwv rau thaj tsam 550℃(1022℃F) tab sis khav theeb cov ntsiab lus chromium ntau dua, muab cov txiaj ntsig zoo tshaj plaws oxidation thiab corrosion kuj nyob rau hauv qhov chaw tsis tshua muaj huab cua.
Q: SA387 Gr.91 vs SA387 Gr.11: Dab tsi yog qhov sib txawv ntawm kev ua haujlwm tseem ceeb?
A: ASME SA387 Gr.91 yog qhov siab -kev ua tau zoo Creep Strength Enhanced Ferritic (CSEF) steel tsim rau qhov chaw huab cua. Nws ua haujlwm kub txog 600℃(1112℃F) thiab boasts lub zog tensile ntau dua (~ 585-760 MPa) thiab creep tsis kam tshaj Gr.11. Los ntawm qhov sib piv, SA387 Gr.11 yog 1.25% Cr - 0.5% Mo alloy zoo tagnrho rau nruab nrab kub txog 450-500℃.
Q: Puas yog SA387 Gr.91 ib txwm xaiv zoo dua li lwm qib SA387?
A: Tsis yog, SA387 Qib 91 tsis yog universally zoo dua lwm cov qib. Thaum nws muaj kev nkag siab zoo dua thiab lub zog tensile ntawm qhov kub siab heev (550℃txog 625 degree), nws muaj qhov tsis zoo cuam tshuam txog kev tsim, nqi, thiab tawv.
Q: Yuav ua li cas xaiv ntawm SA387 Gr.91, Gr.22, thiab Gr.11?
A: Qib 11 (1.25% Cr, 0.5% Mo): Qhov zoo tshaj plaws rau nruab nrab kub txog 540℃(1000℃F); muaj cov kua qaub zoo heev.
Qib 22 (2.25% Cr, 1% Mo): Zoo tagnrho rau kub txog 600℃(1112℃F); dav siv nyob rau hauv loj refinery ib puag ncig.
Qib 91 (9% Cr, 1% Mo): Lub zog zoo tshaj plaws thiab nkag siab ntawm qhov kub siab txog 650℃(1200℃F).
