ASME SA387 GR.22 yog dab tsi?
ASME SA387 Qib 22 yog 2.25Cr-1Mo alloy siab lub nkoj steel phaj tsim tshwj xeeb rau cov cuab yeej ua haujlwm hauv siab- qhov kub thiab txias qhov chaw pabcuam hydrogen. Piv nrog rau cov pa roj carbon steel siab lub nkoj daim hlau, nws cov ntsiab lus chromium siab dua txhim kho kom siab dua -kub oxidation thiab corrosion kuj, thaum lub molybdenum ntxiv boosts nws elevated-temperature zog thiab creep kuj.
ASME SA387 Gr.91 yog dab tsi?
ASME SA387 Qib 91 yog kev hloov kho 9Cr-1Mo alloy steel engineered kom tau raws li qhov xav tau ntau dua rau kev ua haujlwm thermal ntau dua hauv cov pob txha- roj thiab kev sib xyaw ua ke ntawm lub zog hluav taws xob. Piv nrog rau Qib 22, Qib 91 ua tiav cov txheej txheem martensitic microstructure los ntawm cov microalloying ntxiv ntawm vanadium (V), niobium (Nb), thiab nitrogen (N) ua ke nrog kev kho cua sov.
Specification ntawm SA387 Gr.91 thiab Gr.22 Steel Phaj
| Yam khoom | Specification |
|---|---|
| Hom hlau | Chromium{0}}Molybdenum Alloy Pressure Vessel Steel |
| Kev tsim khoom | Fully Killed Steel, Kub Rolled |
| Txuj | ASME SA387 / ASTM A387 Cov Lus Qhia |
| Phaj Thickness * | 6-120mm (Tswj muab khoom) |
| Phaj Dav * | 1,500–3,500 mm |
| Phaj Length * | 3,000–18,000 mm |
| Nto tiav | Raws li Rolled / Shot Blasted & Painted |
| Ntug mob | Mill Edge (ME) / Trimmed Ntug (TE) |
| Kev ua tiav | CNC txiav, Beveling, Drilling, dabtsi yog khoov, Weld npaj |
| Cov ntaub ntawv soj ntsuam | EN 10204 3.1 / 3.2 |
| Optional Test | UT (ASTM A578), PMI, Siab -Tsub Tensile Test, Hardness Test, Impact Test, Third-Party Inspection |
SA387 Gr.91 vs Gr.22 Hlau Phaj: Cov Khoom Siv Tshuaj
| Qib | C | Mn | P | S | Si | Cr | Mo | Ni |
| Qib 22 | 0.04-0.15 | 0.25-0.66 | 0.025 | 0.025 | Tsawg dua los yog sib npaug li 0.50 | 1.88-2.62 | 0.85-1.15 | |
| Qib 91 Hom 1 | 0.06-0.15 | 0.25-0.66 | 0.025 | 0.012 | 0.18-0.56 | 7.90-9.60 | 0.80-1.10 | 0.40 |
| Qib 91 Hom 2 | 0.06-0.15 | 0.30-0.50 | 0.020 | 0.005 | 0.20-0.40 | 8.0-9.5 | 0.80-1.05 | 0.20 |
SA387 Gr.91 vs Gr.22 Steel Phaj: Mechanical Property
| Qib | Chav kawm | Tensile zog (Mpa) min. | Yield zog (MPa) min. | Elongation hauv 2 ntiv tes (%) max. |
| SA 387 Qib 22 | Chav Kawm 1 | 415-585 | 205 | 18 |
| SA 387 Qib 22 | Chav kawm 2 | 515-690 | 310 | 18 |
| SA 387 Qib 91 | Chav kawm 2 | 585-760 | 415 | 18 |
Xaiv cov khoom tsim nyog ntawm theem tsim yuav txo tau cov nqi ntawm lub neej. GNEE's engineering pab neeg tuaj yeem muab kev pabcuam xaiv cov khoom raws li koj qhov kev ua haujlwm kub, siab, tsim qauv, thiab txheej txheem tsim, pab koj kom tsis txhob muaj qhov tsis tsim nyog tshaj -cov lus qhia tshwj xeeb thaum ua raws li ASME cov cai.
Vim li cas SA387 Qib 91 ua tau zoo dua ntawm qhov kub siab?
Txawm hais tias ob qho tib si SA387 Qib 22 thiab Qib 91 yog chromium-molybdenum siab hlab ntsha steels, lawv cov kev xav ntawm cov alloy tsim txawv hauv paus. SA387 Gr. 22 yog ib qho piv txwv 2.25Cr-1Mo steel engineered kom sib npaug nce siab - kub lub zog, weldability, thiab fabricability. Hloov pauv, SA387 Gr. 91 yog hloov kho 9Cr-1Mo steel siv cov kev tswj xyuas meej ntxiv ntawm vanadium (V), niobium (Nb), thiab nitrogen (N), tau tsim tshwj xeeb los ua kom zoo rau lub sijhawm ntev creep-rupture tsis kam ntawm qhov kub siab.
Vim li cas Ntxiv V, Nb, thiab N rau Qib 91?
Peb ASME SA387 Gr.91 steel khaws cov nominal hauv paus muaj pes tsawg leeg ntawm 9% Chromium thiab 1% Molybdenum, thaum koom nrog tswj microalloying ntxiv ntawm vanadium, niobium, thiab nitrogen. Cov ntsiab lus no txhawb kev tsim kom ruaj khov, zooMXcarbonitride precipitates (qhov twgMFeem ntau sawv cev rau V thiab Nb), thaum normalizing thiab tempering thermal ua tsim ib tug tempered martensitic matrix.
Piv nrog rau cov ferritic ib txwm -bainitic lossis tempered bainitic microstructure ntawm Qib 22 steel, qhov kev tsim kho siab tshaj plaws no nthuav tawm cov yam ntxwv hauv qab no:
- Kev tiv thaiv siab dua rau kev deformation hauv lub sijhawm ntev - kev pabcuam.
- Txhim kho microstructural stability ntawm kev pabcuam kub nce mus txog 600-650 degree.
- Cov txiaj ntsig kev ntxhov siab siab dua raws li ASME nce siab -cov cai ntsuas kub.
- Superior tsis kam rau softening thaum lub sij hawm ntev thermal raug.
Siab -Kev Sib Piv Ua Haujlwm Kub: SA387 Qib 91 vs Qib 22
Ob leeg SA387 Qib 22 thiab Qib 91 yog tsim los rau kev nce siab -kub siab cov hlab ntsha, tab sis lawv lub hom phiaj sib txawv hauv kev ua haujlwm. Qib 22 muab kev txhim khu kev qha zoo rau cov pa refining thiab petrochemical cov cuab yeej, whereas Qib 91 yog tshwj xeeb tailored rau hnyav, elevated - ib puag ncig kub uas creep zog yog thawj tsim los xav txog.
Creep Resistance
Qhov feem ntau txhais divergence hauv kev ua tau zoo yog nyob rau hauv creep resistance:
- ASME SA387 Qib 22xa cov khoom ruaj khov, ua haujlwm ntev - lub sijhawm ua haujlwm rau cov hlab ntsha siab ntawm qhov kev pabcuam kub txog li 540 degree, ua rau nws yog ib qho tseem ceeb hauv hydrotreating reactors, heat exchangers, thiab hydrogen service equipment.
- ASME SA387 Qib 91suav nrog microalloying ntxiv ntawm vanadium (V), niobium (Nb), thiab nitrogen (N). Raws li normalizing thiab tempering, cov ntsiab lus no tsim ib tug ruaj khov tempered martensitic matrix uas ua rau kom nkag siab zoo heev - tawg lub zog thiab ntev - lub sij hawm microstructural stability. Yog li ntawd, Qib 91 tau siv dav hauv cov khoom siv ua haujlwm tsis tu ncua nyob rau hauv qhov kub ntawm 550-650 degree.
Ua kom siab -Tsub Tsim Muaj Peev Xwm
Raws li kev khiav hauj lwm kub nce, qhov siab tshaj plaws tso cai rau kev ntxhov siab rau tag nrho cov hlab ntsha steels txo. Txawm li cas los xij, vim nws lub zog siab tshaj plaws, Qib 91 khaws cov txiaj ntsig kev ntxhov siab ntau dua ntawm qhov ntsuas kub siab dua piv rau Qib 22. Rau cov khoom siv nrog qhov ntsuas kub ntawm 600 degree, qhov kev ntxhov siab siab dua tso cai rau cov neeg tsim qauv kom txo cov phab ntsa tuab thiab tag nrho cov khoom hnyav thaum tuav tag nrho cov cai ua raws.
Kev sib piv ntawm High-Tsub Ua Haujlwm
| Khoom | SA387 Qib 22 | SA387 Qib 91 |
|---|---|---|
| Nominal alloy | 2.25Cr-1Mo | 9Cr-1Mo-V-Nb |
| Qhov Kev Pabcuam Ib Yam Kub * | 420-540 degree | 540-650 degree |
| Creep Resistance | Haum rau kev pabcuam ntev -lub sijhawm hauv qab no≈540 degree | Tsim los rau lub sijhawm ntev - kev pabcuam nkag mus txog≈650 degree |
| Oxidation Resistance | 2.25% Cr muab kev ua haujlwm zoo oxidation | 9% Cr muab kev txhim kho oxidation tsis kam |
| Siab -Tsub muaj zog tuav | Nyob ruaj khov nyob rau hauv nruab nrab - kev pabcuam kub kub | Khaws lub zog ntau dua thaum lub sij hawm ntev raug sab saud540 degree |
| ASME Tso cai Stress ntawm qhov kub siab | Txo cov kev ntxhov siab rau qhov kub siab saum toj no540 degree | Kev tso cai siab dua, ua kom cov phab ntsa nyias nyias tsim hauv ntau daim ntawv thov |
| Tej kev siv | Reactors, Kub Exchangers, Hydrogen Service Vessels | Supercritical Boilers, Main Steam Piping, Superheaters |
Tshaj li muab SA387 daim hlau, GNEE muab kev txiav txiav, beveling, sib sau, kev sib koom ua ke ntawm kev kho cua sov, thiab ua kom tiav EN 10204 3.1/3.2 cov ntaub ntawv, pab cov neeg siv khoom luv luv fabrication lead sij hawm thiab txo cov nqi ua haujlwm.
Kev Taw Qhia Kev Xaiv ntawm SA387 Gr.91 thiab Gr.22 Steel Phaj
Xaiv ASME SA387 Gr.22 yog:
ASME SA387 Gr.22 steel yog pom zoo rau cov hlab ntsha siab ua haujlwm ntawm kev pabcuam kub txog li 540 degree. Nws yog qhov kev xaiv zoo tshaj plaws rau refinery reactors, tshav kub exchangers, siab hlab ntsha, thiab cov khoom siv hydrogen. Rau feem ntau cov pa siv petrochemical, Gr.22 muab qhov zoo tshaj plaws sib npaug ntawm kev ua tau zoo thiab tus nqi -kev ua tau zoo.
Xaiv ASME SA387 Gr 91 yog:
ASME SA387 Gr.91 steel yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv ua haujlwm hauv qhov kub ntawm 540-650 degree. Nws yog dav siv nyob rau hauv supercritical boilers, lub ntsiab chav piping, thiab lwm yam elevated - cov cuab yeej tsim hluav taws xob kub.
Nqi vs. Performance
Txawm hais tias Gr.91 raug nqi ntau dua cov khoom siv thiab cov nqi tsim khoom, nws muaj kev ua tau zoo dua - lub sijhawm ua haujlwm nyob rau hauv qhov hnyav nce - qhov kub thiab txias. Rau cov ntawv thov qis dua 540 degree, Gr.22 tseem yog qhov kev daws teeb meem ntau dua, thaum rau kev nkag siab -cov ntawv thov ntau dua 540 degree, Gr.91 sawv cev rau qhov zoo dua mus ntev - lub sijhawm peev.
Vim li cas thiaj xaiv GNEE Steel?
Kev Tswj Xyuas Zoo
Tshuaj ntsuam xyuas muaj pes tsawg leeg
Tensile thiab yield zog kuaj
Kev ntsuas elongation
Charpy V-kev ntsuas qhov cuam tshuam (qhov twg tau teev tseg)
Kev kuaj ultrasonic (UT) raws li ASTM A578
Positive Material Identification (PMI)
Thib peb-Kev Tshuaj Xyuas Ib Tug (TPI) los ntawm SGS, TÜV, BV, DNV, lossis lwm lub koom haum raug xaiv
Customized Fabrication Services
CNC nplaim taws thiab plasma txiav
Weld beveling
Phaj ntug machining
Drilling thiab profile
Customized sizing raws li fabrication drawings
Xaus-rau-End Technical Support
Peb pab neeg ua haujlwm engineering pab cov neeg siv khoom thoob plaws tag nrho cov txheej txheem kev yuav khoom- ncua kev xaiv cov khoom, tshuaj xyuas cov lus qhia, cov lus pom zoo tsim khoom, thiab kev sib koom ua haujlwm logistical. Txawm hais tias koj qhov project xav tau SA387 Qib 22 steel daim hlau rau cov hlab ntsha siab los yog Qib 91 daim hlau rau qib siab - cov khoom siv hluav taws xob kub, peb muaj cov cuab yeej ua kom pom zoo rau cov khoom tsim nyog tshaj plaws raws li koj qhov kev ua haujlwm thiab cov qauv tsim.
Thaum ob qho tib si SA387 Qib 22 thiab Qib 91 yog cov pov thawj chromium-molybdenum siab hlab ntsha steels, qhov kev xaiv zoo yog nyob ntawm qhov kub thiab txias, tsim kev ntxhov siab, kev tsim muaj peev xwm, thiab cov nqi siv lub neej ntau dua li cov khoom siv ib leeg. Kev ntsuam xyuas cov xwm txheej no thaum ntxov yuav pab kom muaj kev nyab xeeb, txhim khu kev qha, thiab tus nqi - cov cuab yeej siv tau zoo thoob plaws hauv nws lub neej ua haujlwm.
FAQ
Q: Dab tsi yog qhov txawv ntawm SA387 Qib 91 thiab Qib 22?
A: Qhov sib txawv tseem ceeb ntawm SA387 Qib 91 thiab Qib 22 nyob rau hauv lawv cov tshuaj muaj pes tsawg leeg thiab qhov ntsuas kub. Qib 91 yog hloov kho 9% Cr-1% Mo steel tsim rau kub dua, thaum Qib 22 yog 2.25% Cr-1% Mo steel.
Q: SA387 Qib 22 vs Qib 12: Lawv piv li cas?
A: SA387 Qib 22 thiab Qib 12 yog ob qho tib si chromium-molybdenum alloy siab nkoj steels. Qib 22 (2.25% Cr - 1% Mo) yog tsim los rau qhov kub thiab txias thiab siab - qhov chaw siab dua piv rau Qib 12 (1% Cr - 0.5% Mo), ua rau nws tiv taus cov kev pab cuam hydrogen thiab nqa 15-20% tus nqi siab dua.
Q: SA387 Qib 22 vs Qib 5: Qhov twg muaj qhov zoo dua corrosion thiab kub tsis kam?
A: ASTM SA387 Qib 5 muaj qhov zoo dua corrosion thiab oxidation tsis kam vim nws cov ntsiab lus chromium ntau dua (4.0-6.0%). Txawm li cas los xij, SA387 Qib 22 muaj qhov ua tau zoo tshaj plaws ntawm cov cua sov, lub zog nyob rau hauv qhov kub thiab txias tsis tu ncua (kev ua haujlwm tsis zoo), thiab kev ruaj ntseg nyob rau hauv siab - cov kev mob siab vim nws cov ntsiab lus molybdenum siab dua (0.9-1.1%).
Q: SA387 Qib 91 vs Qib 9: Dab tsi yog qhov sib txawv ntawm qhov tseem ceeb?
A: Qhov sib txawv tseem ceeb yog Qib 91 yog Creep Strength Enhanced Ferritic (CSEF) steel uas muaj vanadium thiab niobium. Qhov kev sib ntxiv no ua rau muaj kev txhim kho siab - qhov kub thiab txias, ua rau Qib 91 ua haujlwm ntawm qhov kub thiab txias ntau dua.
