Xi'an Dongmeng Group Co., Ltd. yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm ASTM A335 P22 Yeeb Nkab nyob rau hauv Suav teb, kuj txhawb kev pabcuam customized. Nrog kev paub ntau, peb sov siab txais tos koj rau cov lag luam wholesale pheej yig cov khoom hauv Tshuag ntawm no thiab tau txais cov qauv dawb los ntawm peb lub hoobkas. Rau nqe kev sab laj, tiv tauj peb.
2.25Cr-1Mo Chrome Moly Alloy Steel Yeeb Nkab rau Kev Pabcuam Kub Kub Kub
Xi'an Dongmeng Group Co., LtdASTM A335 P22 / ASME SA335 P22 seamless alloy steel yeeb nkabrau tsim hluav taws xob, refinery, petrochemical, boiler thiab siab -kub txheej txheem piping tej yaam num.
P22 yog lub npe2.25Cr-1Mo chromium-molybdenum ferritic alloy hlau. Piv nrog P11, nws cov ntsiab lus chromium thiab molybdenum siab dua muab kev txhim kho oxidation tsis kam thiab nce siab - qhov kub thiab txias, thaum nws cov seamless tsim ua rau nws tsim nyog rau cov kav dej tseem ceeb.
Kev xaiv cov khoom siv yuav tsum yog raws li cov qauv tsim qauv, kev tsim siab thiab qhov kub thiab txias, qhov nruab nrab ntawm cov dej, tso cai rau kev ntxhov siab, kev xav tau vuam thiab qhov project specification es tsis yog nyob rau ntawm qhov kev pabcuam siab tshaj plaws.
ASTM A335 P22 ceev Specification
ASTM A335 P22 Seamless Yeeb Nkabyog a2.25Cr-1Mo chromium-molybdenum alloy steel yeeb nkabtsim los rau siab - qhov kub thiab txias kev pab cuam nyob rau hauv fais fab nroj tsuag, refineries, petrochemical systems thiab industrial txheej txheem piping.
Dongmeng Group muab ASTM A335 P22 seamless yeeb nkab nrog cua sov-number traceability, project-kev soj ntsuam tshwj xeeb, hnyav- cov kev xaiv phab ntsa thiab cov ntaub ntawv txuj ci rau thoob ntiaj teb siab -kub piping tej yaam num.
| Yam khoom | Specification |
| Txuj | ASTM A335 / A335M / ASME SA335 |
| Qib | P22 |
| UNS | K21590 |
| Tsev Neeg Khoom | 2.25Cr-1Mo Chrome Moly Hlau |
| Kev tsim khoom | Seamless |
| Txoj kev tsim khoom | Kub Tiav lossis Txias Drawn |
| Kev kho cua sov | Tag nrho / Isothermal Annealed lossis Normalized & Tempered |
| Tensile zog | 415 MPa min |
| Yield zog | 205 MPa min |
| Qhov Loj | NPS 1/2–24 nyob rau hauv. Qhov loj dua / qhov project loj tuaj yeem muaj |
| Phab ntsa | SCH 40 / 80 / 120 / 160 / XXS / Hnyav phab ntsa |
| Ntev | 6 m / 12 m / Random / Custom |
| Xaus | Plain End / Beveled End |
| Kev sim | Hydrostatic + Applicable NDE + Mechanical Testing |
| Cov ntaub ntawv | EN 10204 3.1; muaj cov ntaub ntawv tshuaj xyuas ntxiv |
| Daim ntawv thov | Fais fab nroj tsuag · Refinery · Petrochemical · Chav & Txheej Txheem Piping |
ASTM A335 P22 Yeeb Nkab yog dab tsi?
ASTM A335 P22 yog seamless ferritic alloy -steel yeeb nkab npaj rau elevated - kev pabcuam kub.
Lub npe muaj ob yam tseem ceeb:
ASTM A335 Cov Lus Qhia Tshwj Xeebtxheeb xyuas cov khoom specification rau seamless ferritic alloy - steel yeeb nkab.
P22txheeb xyuas cov khoom qib 2.25Cr-1Mo.
P22 muaj ntau chromium thiab molybdenum ntau dua li P11. Chromium pab txhawb kev tiv thaiv siab -kub oxidation, thaum molybdenum txhawb zog thiab nkag mus rau qhov kub siab.
Txawm li cas los xij, ASTM A335 yog acov khoom specification, tsis ua tiav piping design specification.
Qhov kawg tso cai siab thiab kub ntawm P22 piping system yuav tsum tau txiav txim siab siv cov qauv tsim qauv, qhov ntev ntawm cov yeeb nkab, kev tso cai rau kev ntxhov siab, cov ntsiab lus sib koom ua ke thiab cov kev xav tau ntawm engineering.
ASTM A335 P22 Tshuaj muaj pes tsawg leeg
P22 sib raug rau UNS K21590.
| Element | ASTM A335 P22 |
| Carbon, C | 0.05–0.15% |
| Manganese, Mn | 0.30–0.60% |
| Phosphorus, P | 0.025% max |
| Sulfur, S | 0.025% max |
| Silicon, Sib | 0.50% max |
| Chromium, Cr | 1.90–2.60% |
| Molybdenum, Mo | 0.87–1.13% |
P22 yog li ntawd feem ntau piav raws li2.25Cr-1Mo hlau, txawm hais tias kev yuav khoom yuav tsum ib txwm ua raws li qhov tseeb ASTM cov tshuaj txwv tsis yog lub npe hu ua alloy tsim ib leeg.
Mechanical Properties
Chav tsev yam tsawg kawg nkaus -kub tensile yuav tsum tau rau ASTM A335 P22 suav nrog:
| Khoom | Kev xav tau |
| Tensile zog | Ntau tshaj lossis sib npaug ntawm 415 MPa / 60 ksi |
| Yield zog | Ntau tshaj lossis sib npaug ntawm 205 MPa / 30 ksi |
| Elongation | Raws li ASTM A335 qauv thiab phab ntsa-thickness yuav tsum |
Elongation yuav tsum tsis txhob txo qis rau ib feem pua ntawm txhua qhov loj ntawm cov yeeb nkab vim tias qhov yuav tsum tau muaj nyob ntawm cov qauv kev taw qhia thiab qhov ntev.
Rau kev tsim qauv engineering ntawm qhov kub siab, chav- qhov kub ntawm tensile qhov tseem ceeb yuav tsum tsis txhob hloov pauv rau cov ntaub ntawv kev ntxhov siab uas tso cai los ntawm kev tswj hwm txoj cai.
Kev kho cua sov ntawm A335 P22
Kev kho cua sov yog qhov tseem ceeb tshwj xeeb rau Cr-Mo piping cov ntaub ntawv.
ASTM A335 P22 tsis tau piav qhia kom raug raws li tau muab tsuas yog nyob rau hauv qhov normalized - thiab - tempered mob.
Tso cai ua kom tiav cov cua sov- txoj kev kho mob suav nrog:
Tag Nrho Annealing
Isothermal Annealing
los yog
Normalizing thiab tempering
Thaum normalized thiab tempered, qhov tsawg kawg nkaus tempering kub teev rau P22 yog1250℃F [675 degree].
Yog li qhov kev xa khoom tiag tiag yuav tsum tau teev nyob rau ntawm daim ntawv xaj khoom thiab lees paub ntawm cov ntaub ntawv cov ntaub ntawv.
Vim li cas qhov no tseem ceeb rau cov neeg yuav khoom
Kev kho cua sov cuam tshuam rau microstructure, hardness, fabrication cwj pwm thiab siab -kub khoom.
Rau cov haujlwm tseem ceeb, pab pawg yuav khoom yuav tsum txheeb xyuas:
Thaum tshav kub kub-kev kho mob
Rauv cov ntaub ntawv uas xav tau
Kub naj npawb
Mechanical test results
Chemistry
NDE cov ntaub ntawv
Hydrostatic test xwm txheej
Khoom siv traceability
ua ntej yuav txais cov khoom.
Yuav ua li cas ASTM A335 P22 Seamless Yeeb Nkab raug tsim
Ib txoj hauv kev tsim muaj xws li steelmaking, billet npaj, tho, kub sib sau los yog txias kos duab, kho cua sov, straightening, seem tiav, kuaj thiab zaum kawg soj ntsuam.
1. Raw Material Control
Thaum tshav kub kub chemistry thiab raw -cov ntaub ntawv traceability raug tshuaj xyuas tawm tsam P22 cov cai.
2. Seamless Piercing
Ib daim tawv nqaij yog pierced los ua ib lub plhaub hollow yam tsis muaj longitudinal weld seam.
3. Kub Finishing los yog txias kos duab
Cov yeeb nkab tau ua tiav kom tau txais qhov xav tau sab nraud txoj kab uas hla, phab ntsa tuab thiab qhov tseeb qhov tseeb.
4. Kev kho cua sov
Cov yeeb nkab tau txais ASTM- ua raws li kev kho cua sov kom haum rau P22.
5. Txhim kho thiab xaus kev npaj
Cov yeeb nkab ncaj, ntev thiab xaus yog npaj raws li kev yuav khoom specification.
6. Mechanical Testing thiab NDE
Yuav tsum muaj kev ntsuam xyuas txhua yam, kuaj hydrostatic thiab kev kuaj xyuas tsis muaj kev puas tsuaj yog ua raws li tus qauv tsim nyog thiab kev yuav khoom.
7. Cov ntaub ntawv kawg
Kev tshuaj xyuas tshuaj, kev siv tshuab, kev kho cua sov thiab cov ntaub ntawv tshuaj xyuas yuav tsum tau tshuaj xyuas ua ntej kev lees paub zaum kawg thiab xa khoom xa tuaj.
Kev kuaj thiab tshuaj xyuas yuav tsum tau ua
Kev ntsuam xyuas yuav tsum yog ib qho ntawm qhov muaj zog tshaj plaws ntawm nplooj ntawv P22 kev yuav khoom.
ASTM A335 suav nrog cov kev cai uas suav nrog kev ntsuas tshuab, ntsuas hydrostatic thiab kuaj tsis muaj kev puas tsuaj.
Nyob ntawm seb qhov loj me thiab cov kev xav tau tshwj xeeb, kev tshuaj xyuas yuav suav nrog:
Tshuaj ntsuam xyuas
Kev pov thawj ntawm P22 chemistry thiab cov cua sov traceability.
Kev Ntsuas Tensile
Kev txheeb xyuas qhov tsawg kawg nkaus tensile thiab yield zog.
Flattening lossis Khoov Test
Siv raws li qhov siv tau qhov ntev thiab cov lus qhia tshwj xeeb.
Kev Ntsuas Hydrostatic
Siv los txheeb xyuas cov yeeb nkab kev ncaj ncees raws li qhov kev sim ntsuas.
Kev kuaj tsis raug
Cov yeeb nkab tau raug tshuaj xyuas los ntawm kev siv cov kev kuaj xyuas tsis muaj kev puas tsuaj raws li ASTM A335 cov cai.
Cov kev qhia tshwj xeeb ntawm qhov project kuj tuaj yeem thov UT, Eddy Tam sim no, flux to los yog lwm txoj hauv kev tshuaj xyuas hauv cov txheej txheem siv tau.
Ntxiv PMI, kev sim hardness, kev ntsuam xyuas cuam tshuam, kev tshuaj xyuas qhov ntev lossis thib peb-cov neeg pov thawj tuaj yeem raug txheeb xyuas qhov twg yuav tsum tau ua los ntawm txoj haujlwm.
Tsis txhob Confuse ASTM A335 Kev Xeem nrog Weld Inspection
ASTM A335 P22 yog aseamless yeeb nkab.
Yog li, cov kev cai xws li longitudinal weld radiography siv rau EFW yeeb nkab yuav tsum tsis txhob muab luam rau hauv A335 P22 cov khoom specification.
Rau qhov loj - txoj kab uas hla welded 2.25Cr-1Mo yeeb nkab tsim los ntawm phaj, tus neeg yuav khoom tuaj yeem ntsuas ASTM A691 2-1/4Cr cov khoom, raws li kev tsim-code thiab qhov kev pom zoo.
A335 P22 Pipe Loj
ASTM A335 tsis txhais hais tias txhua lub zeb muab txhua NPS thiab lub sijhawm.
Dongmeng Group cov kev pabcuam kev lag luam yuav suav nrog:
| NPS | Hom OD | SCH40 | SCH 80 |
| 1/2 nyob rau hauv. | 21.3mm ib | 2.77mm ib | 3.73mm ib |
| 1in ib. | 33.4mm ib | 3.38mm ib | 4.55mm ib |
| 2in ib. | 60.3mm ib | 3, 91mm | 5.54mm ib |
| 4in ib. | 114.3mm 3 | 6.02mm ib | 8.56mm ib |
| 6in ib. | 168.3mm 3 | 7.11mm 7 | 10.97mm 3 |
| 8in ib. | 219.1mm 3 | 8.18mm ib | 12.70 mm |
| 10 in. | 273.0 hli | 9.27mm ib | 15.09mm 3 |
| 12 in. | 323.9mm ib | 10.31 hli | 17.48mm 3 |
SCH 120, SCH 160, XXS thiab qhov project- tshwj xeeb hnyav- phab ntsa qhov ntev tuaj yeem hais raws li lub peev xwm zeb thiab xav tau kom muaj nuj nqis.
Rau kev yuav khoom, ib txwm qhiaNPS/OD + phab ntsa thickness los yog teem caij, tsis yog teem caij ib leeg.
ASTM A335 P11 thiab P22 vs P91
Cov qhab nia no yuav tsum tsis txhob raug xaiv los ntawm qeb lawv "zoo, zoo dua, zoo tshaj."
| Yam khoom | P11 | P22 | P91 |
| Nominal alloy | 1.25Cr-0.5Mo | 2.25Cr-1Mo | 9Cr-1Mo-V-Nb |
| Chromium | 1.00–1.50% | 1.90–2.60% | Kwv yees li . 8–9.5% |
| Molybdenum | 0.44–0.65% | 0.87–1.13% | Kwv yees li . 0.85–1.05% |
| Min. Tensile zog | 415 MPa rau | 415 MPa rau | Siab dua P11/P22 |
| Min. Yield zog | 205 MPa | 205 MPa | Siab dua P11/P22 |
| Vuam Complexity | Nruab nrab | Siab dua P11 | Qhov tseem ceeb tshaj xav tau |
| Hom kev xaiv | Nruab nrab Cr-Mo service | Siab dua - alloy Cr-Mo service | Siab - nkag - lub zog tseem ceeb ntawm cov kav dej |
Thaum twg P22 nyiam tshaj P11?
P22 tej zaum yuav raug xaiv qhov twg cov qauv tsim engineering tau txais txiaj ntsig los ntawm qhov siab dua Cr-Mo alloy cov ntsiab lus thiab nws cov qib siab - qhov kub thiab txias.
Qhov no uatsis yogtxhais tau hais tias txhua qhov system P11 yuav tsum tau hloov kho rau P22.
Tsim kom muaj kev ntxhov siab, kev txhim kho corrosion, txheej txheem vuam, PWHT, thermal expansion, fittings, li qub thiab cov txheej txheem metallurgy uas twb muaj lawm yuav tsum tau txiav txim siab.
Thaum twg P91 nyiam tshaj P22?
P91 muaj zog nkag siab ntau dua los ntawm nws qhov hloov kho 9Cr-1Mo-V-Nb metallurgy, tab sis kev tsim khoom thiab kev kho cua sov yog qhov xav tau ntau dua.
Yog li ntawd, P91 yuav tsum tsis txhob piav qhia yooj yim raws li kev hloov pauv zoo tshaj rau P22.
Kev xaiv yuav tsum ua raws li tus qauv tsim qauv thiab qhov project metallurgy specification.
ASTM A335 P22 vs ASTM A 691 2-1/4Cr
Ob qhov kev qhia tshwj xeeb no feem ntau tshawb nrhiav ua ke tab sis sawv cev rau cov yeeb nkab sib txawv.
| Yam khoom | ASTM A335 P22 | ASTM A 691 2-1/4Cr |
| Kev tsim kho | Seamless | EFW Welded |
| Tsev Neeg Khoom | 2.25Cr-1Mo | 2.25Cr-1Mo tsev neeg |
| Longitudinal Seam | Tsis muaj | Yog lawm |
| Yam khoom | Seamless siab piping | Loj - txoj kab uas hla welded siab piping |
| Pib Khoom | Billet | Siab- nkoj- phaj zoo |
A691 yuav tsum tsis txhob ua lag luam raws li kev hloov pauv tsis siv neeg rau A335 P22. Kev hloov pauv yuav tsum tau kev pom zoo engineering.
Matching P22 Piping Cheebtsam
Ib pob P22 piping tiav yuav siv tau Cr-Mo cov tsev neeg xws li:
| Khoom | Khoom siv |
| Seamless Yeeb Nkab | ASTM A335 P22 |
| Lub taub qab- Weld Fittings | ASTM A234 WP22 |
| Forged Flanges / Fittings | ASTM A182 F22 |
| Phaj | ASTM A387 Qib 22 |
| EFW welded yeeb nkab | ASTM A 691 2-1/4Cr |
Qhov tseeb haum lossis forging chav kawm, cua sov- kev kho mob thiab kev ntsuas siab yuav tsum raug xaiv raws li cov txheej txheem kav dej.
Vuam xav txog P22
P22 yog weldable, tab sis vuam yuav tsum tau tswj los ntawm kev pom zoo Vuam txheej txheem Specification es tsis yog los ntawm ib tug universal website kub.
Common engineering kev txiav txim siab muaj xws li:
Base- kev txheeb xyuas cov ntaub ntawv
Tsawg-kev siv hydrogen vuam
Haum Cr-Mo muab tub lim hlau
Preheat thiab interpass kub
Kub input
Hydrogen tswj
Tshaj tawm -weld kub kho
Hardness tswj
NDE
Cov txheej txheem kho
Kev sib tw muab tub lim- tsev neeg hlau tuaj yeem suav nrog B3-hom consumables, raws li txoj cai tswj kev vuam specification thiab WPS/PQR.
Puas yog PWHT Ib txwm xav tau?
Nws tsis yog technically raug hais tias ASTM A335 nws tus kheej ua rau PWHT "tseem ceeb" rau txhua qhov kev sib koom ua ke P22.
PWHT cov kev cai rau kev teeb tsa piping weld yog txiav txim siab los ntawm yam xws li:
ASME B31.1 / B31.3 lossis lwm txoj cai tswjfwm
Khoom siv P-Number / Group
Phab ntsa thickness
Kev pabcuam
Vuam txheej txheem
Qhov project specification
Muaj kev zam
Yog li ntawd, tus neeg yuav khoom thiab tus tsim khoom yuav tsum siv WPS / PQR pom zoo thiab tswj hwm kev tsim kho.
P22 Pipe Applications
ASTM A335 P22 feem ntau tau teev tseg rau kev nce siab - qhov kub thiab txias xws li:
Main thiab auxiliary chav piping
Boiler kav dej
Superheater thiab reheater -txog cov kav dej
Fais fab -generation pressure piping
Cov txheej txheem piping
Petrochemical piping
High -kub txheej txheem kab
Hydrogen{0}}muaj cov kev pabcuam refinery qhov project metallurgy qhia 2.25Cr-1Mo
Siab - kub taub hau thiab manifolds
Cov khoom siv siab txuas cov kav dej
Kev tsim nyog rau ib daim ntawv thov tshwj xeeb yuav tsum tau lees paub los ntawm qhov project engineering.
P22 Puas Muaj Kev Pabcuam Siab Tshaj Plaws?
Ib nqe lus ruaj xws li:
"P22 qhov kub siab tshaj qhov kev pabcuam=595 degree"
yuav tsum tsis txhob siv raws li txoj cai kev yuav khoom thoob ntiaj teb.
ASTM A335 txhais cov khoom thiab kev tsim khoom; Nws tsis yog los ntawm nws tus kheej tsim ib qho universal siab tshaj plaws tsim kub rau txhua txhua P22 piping installation.
Kev txwv tsim tiag yog nyob ntawm cov yam xws li:
Kev cai tsim cai
Tso cai rau kev ntxhov siab ntawm qhov ntsuas kub tsim
Yuav tsum tau kev pab lub neej
Creep raug
Sab hauv siab
Phab ntsa thickness
Corrosion pub
Dej ib puag ncig
Vuam mob
Cyclic kev ua haujlwm
Rau siab -kub tej yaam num, buyers yuav tsum muab covtsim kub thiab tsim siabhauv RFQ.
Material Traceability thiab tshuaj xyuas cov ntaub ntawv
Rau kev lag luam P22 tej yaam num, Dongmeng Group tuaj yeem muab cov ntaub ntawv raws li kev yuav khoom, suav nrog:
Kub naj npawb
Material Test Certificate
Tshuaj ntsuam xyuas
Mechanical zog
Thaum tshav kub kub-kev kho mob
Cov ntaub ntawv ntsuas hydrostatic
NDE cov ntaub ntawv
Dimensional soj ntsuam
Khoom cim npe
Cov ntawv ntim khoom
Daim ntawv pov thawj ntawm keeb kwm yog qhov xav tau
EN 10204 3.1 ntawv pov thawjtuaj yeem muab tau raws li qhov kev txiav txim pom zoo.
EN 10204 3.2 lossis thib peb- kev tshuaj xyuas tog neeg yuav tsum raug lees paub nyob rau theem hais lus vim nws yuav tsum muaj kev tshuaj xyuas ntxiv.
Thib peb-kev tshuaj ntsuam xyuas tog yuav raug teem los ntawm tus neeg yuav khoom- cov koom haum pom zoo raws li tau teev tseg.
Dab tsi yuav tsum tau suav nrog hauv P22 RFQ?
Daim ntawv thov kev tshaj lij rau kev hais lus yuav tsum muaj ntau tshaj li:
"Xav tau P22 yeeb nkab."
Muab:
| RFQ khoom | Piv txwv |
| Khoom siv | ASTM A335 P22 |
| Standard Edition | Qhov project-cov ntawv tshwj xeeb |
| ASME Requirement | SA335 P22 yog muaj |
| Loj | NPE 8 |
| Phab ntsa | TIAB SA 160 |
| Ntev | 12 m |
| Ntau | 25 MT ib |
| Xaus | BE |
| Kev kho cua sov | Raws li ASTM / qhov yuav tsum tau ua |
| NDE | Standard + qhov kev xav tau ntxiv |
| Cov ntaub ntawv | EN 10204 3.1 |
| PMI | Yuav Tsum Tau / Tsis Xav Tau |
| Impact Test | Yog tias qhov project - xav tau |
| Tsim Code | ASME B31.1 / B31.3 |
| Tsim Kub | Qhov project tus nqi |
| Tsim Siab | Qhov project tus nqi |
| TPI | Yog xav tau |
| Delivery Destination | Chaw nres nkoj / Lub Tebchaws |
Cov ntaub ntawv no tso cai rau tus neeg muag khoom los tshuaj xyuas kev ua raws cai ua ntej tshaj tawm cov lus hais.
Vim li cas thiaj xaiv Dongmeng Group rau P22 Yeeb Nkab
Xi'an Dongmeng Group Co., Ltd. txhawb thoob ntiaj teb Cr-Mo alloy steel piping procurement nrog rau cov ntaub ntawv specification, traceability, soj ntsuam thiab project ntaub ntawv.
Rau ASTM A335 P22 xaj, peb tuaj yeem txhawb nqa:
Cov ntaub ntawv pov thawj
Thaum tshav kub kub, chemistry thiab MTC tshuaj xyuas.
Loj & Hnyav - Phab Ntsa Khoom
Cov txheej txheem txheej txheem thiab qhov project- tshwj xeeb hnyav- phab ntsa yuav tsum raug rau lub peev xwm zeb.
Txiav & Xaus Kev Npaj
Tsau ntev, tiaj kawg thiab beveled xaus raws li kev txiav txim siab.
Kev Txhawb Kev Tshawb Fawb
Standard xeem thiab ntxiv kev soj ntsuam qhov project thaum teev.
Thib peb-Kev soj ntsuam tog
SGS, BV, TÜV lossis lwm tus neeg yuav khoom- pom zoo kev kuaj xyuas qhov xav tau.
Export Ntim
Bundle tiv thaiv, kawg tiv thaiv thiab seaworthy export ntim.
Peb lub hom phiaj yog muab qhov tseebkhoom + qhov ntev + kev kho cua sov + tshuaj xyuas + cov ntaub ntawv pob, es tsis yog tsuas yog hais cov yeeb nkab los ntawm qib nominal.
ASTM A335 P22 FAQ
1. Puas yog ASTM A335 P22 seamless lossis welded?
ASTM A335 P22 yog seamless alloy - cov yeeb nkab steel. Ib tug longitudinally welded 2.25Cr-1Mo yeeb nkab belongs nyob rau hauv ib tug txawv cov khoom specification, xws li ASTM A691 qhov twg muaj feem xyuam.
2. Dab tsi yog qhov nominal alloy muaj pes tsawg leeg ntawm P22?
P22 feem ntau hu ua 2.25Cr-1Mo steel. ASTM txwv chromium rau 1.90-2.60% thiab molybdenum rau 0.87-1.13%.
3. UNS K21590 yog dab tsi?
K21590 yog UNS lub npe cuam tshuam nrog ASTM A335 P22.
4. Puas yog P22 muaj zog dua P11 ntawm chav tsev kub?
Nyob rau hauv ASTM A335 chav yam tsawg kawg nkaus -kub tensile yuav tsum tau, P11 thiab P22 muaj yam tsawg kawg nkaus tensile zog ntawm 415 MPa thiab qhov tsawg kawg nkaus yield zog ntawm 205 MPa. Lawv qhov sib txawv tseem ceeb yog nyob rau hauv chemistry thiab nce siab - tus cwj pwm kub es tsis yog chav tsev yooj yim - qhov kub thiab txias lub zog.
5. Puas yog txhua qhov P22 yeeb nkab normalized thiab tempered?
No. ASTM A335 tso cai rau P22 muab tag nrho annealed, isothermal annealed, los yog normalized thiab tempered raws li specification yuav tsum tau.
6. Qhov tsawg kawg nkaus tempering kub rau normalized - thiab - tempered P22 yog dab tsi?
Rau qhov normalized-thiab- txoj kev tempered, qhov ntsuas qhov ntsuas qhov tsawg kawg nkaus yog 1250℃F [675 degree].
7. P22 puas yuav tsum tau kuaj hydrostatic?
ASTM A335 suav nrog cov kev ntsuas hydrostatic, nrog rau kev kuaj xyuas tsis zoo. Qhov project- kev tshuaj xyuas tshwj xeeb ntxiv yuav tsum tau teev nyob rau hauv daim ntawv xaj yuav khoom.
8. Puas yog P22 xav tau PWHT tom qab vuam?
PWHT cov cai rau fabrication welds yog txiav txim los ntawm txoj cai kev tsim kho, phab ntsa thickness, kev pab cuam, pom zoo WPS / PQR thiab qhov project specification. Nws yuav tsum tsis txhob raug kho raws li ib txoj cai thoob ntiaj teb ASTM A335.
9. P22 puas tuaj yeem hloov P11?
Tsis tau. Txhua qhov kev hloov khoom siv yuav tsum raug tshuaj xyuas tiv thaiv kev ntxhov siab, tsim qhov kub thiab txias, txheej txheem vuam, cov khoom sib txuam, kev txhim kho corrosion thiab tsim cov cai.
10. Dab tsi fittings feem ntau siv nrog P22 yeeb nkab?
ASTM A234 WP22 taub qab-weld fittings thiab ASTM A182 F22 forged Cheebtsam belongs rau 2.25Cr-1Mo cov khoom siv hauv tsev. Cov qhab-nees / chav kawm ntawv yuav tsum ua raws li cov kav dej tshwj xeeb.
11. Puas yog A691 2-1/4Cr sib npaug rau A335 P22?
Lawv koom nrog Cr-Mo cov khoom siv hauv tsev tab sis yog cov khoom sib txawv. A335 P22 yog seamless; A691 2-1/4Cr yog EFW welded yeeb nkab tsim los ntawm phaj. Lawv yuav tsum tsis txhob raug kho raws li kev hloov pauv tau.
12. Cov ntaub ntawv dab tsi xav tau rau kev hais lus?
Thov muab ASTM / ASME tus qauv, NPS lossis OD, phab ntsa tuab / lub sijhawm, ntev, ntau, tsim cov xwm txheej uas cuam tshuam, xav tau NDE, cov ntaub ntawv, thib peb - tog yuav tsum tau soj ntsuam thiab xa mus rau qhov chaw.
Thov ib qho ASTM A335 P22 Pipe Quotation
Rau kev hais lus thiab kev lag luam, xa koj li:
ASTM A335 P22 / ASME SA335 P22
NPS / OD × Phab ntsa Thickness
Ntev
Ntau
Yuav tsum tau kho cua sov / tshuaj xyuas
MTC / TPI Requirements
Delivery Destination
Xi'an Dongmeng Group Co., Ltd.
Xov tooj / WhatsApp: +86 157 6921 4734
Email:office@dongmjd.com
Chaw Ua Haujlwm: Chav 4107, Runfeng Tsev, Sanqiao Tshiab Street, Weiyang District, Xi'an City, Shaanxi Province
Cim npe nrov: ASTM A335 P22 yeeb nkab, A335 P22 seamless yeeb nkab, SA335 P22 yeeb nkab, 2.25Cr 1Mo yeeb nkab, P22 chrome moly yeeb nkab, ASTM A335 Qib P22, P22 yeeb nkab SCH 80, P22 yeeb nkab SCH 160, P22 hnyav phab ntsa yeeb nkab, P22 yeeb nkab steel 2 seamless steel yeeb nkab muaj pes tsawg leeg, P22 kev kho cua sov, P11 vs P22, P22 vs P91, A335 P22 vs A 691 2-1 / 4Cr
