Xi'an Dongmeng Group Co., Ltd. yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm astm a335 p91 yeeb nkab nyob rau hauv Suav teb, kuj txhawb kev pab customized. Nrog kev paub ntau, peb zoo siab tos txais koj rau cov khoom lag luam wholesale pheej yig hauv Tshuag ntawm no thiab tau txais cov qauv dawb los ntawm peb lub hoobkas. Rau nqe kev sab laj, tiv tauj peb.
ASTM A335 P91 Seamless Alloy Steel Yeeb Nkab
Xi'an Dongmeng Group Co., Ltd.khoom siv ASTM A335 P91 seamless alloy steel yeeb nkab rau kev teev siab -kub siab piping tej yaam num. Peb ua hauj lwm nrog EPC cov neeg cog lus, piping fabricators, distributors thiab industrial tu buyers los txhais cov ntaub ntawv uas yuav tsum tau ua ntej hais.
P91 yog hloov kho 9Cr-1Mo steel ntxiv dag zog nrog vanadium, niobium thiab nitrogen. Nws yog nyob rau hauv creep-lub zog-txhim kho ferritic steel tsev neeg thiab txhim kho nws qhov kev npaj ua haujlwm los ntawm kev tswj xyuas thiab kev kho cua sov.
Rau kev yuav khoom, lub npe qib tsuas yog qhov pib. Cov lus hais yuav tsum txheeb xyuas cov qauv qauv, P91 hom, qhov ntev, qhov kev xa khoom, kev tshuaj xyuas thiab cov ntaub ntawv pob.
Xa koj cov lus qhia tshwj xeeb lossis piping MTO txhawm rau txheeb xyuas cov khoom muaj thiab thov qhov project hais.
P91 Pipe Supply Specifications
| Yam khoom | Khoom Specification |
| Khoom | Seamless alloy steel siab yeeb nkab |
| Khoom txheem | ASTM A335 / A335M; ASME SA335 / SA335M thaum xav tau |
| Qib | p91 ;ua. qhia hom 1 lossis hom 2 |
| Yam khoom | Round yeeb nkab |
| Txoj kev tsim khoom | Kub-ua tiav lossis txias- kos seamless |
| Nug qhov ntau thiab tsawg | NPS 1/2–24, raws li tus kheej qhov loj thiab kev pom zoo |
| Phab ntsa thickness | Teem sij hawm xaiv los yog teev nominal/yam tsawg phab ntsa |
| Ntev | 6 m, 12 m, random los yog txiav lengths, raws li pom zoo |
| Kev npaj kawg | Plain los yog beveled; tshwj xeeb machining raug tshuaj xyuas |
| Kev tiv thaiv nto | Pom zoo tiv thaiv corrosion ib ntus rau kev cia thiab thauj |
| Cov ntaub ntawv tshuaj xyuas | MTC thiab cov ntawv ceeb toom tau pom zoo hauv daim ntawv xaj yuav khoom |
| Ntim | Xaus kev tiv thaiv, txheeb xyuas cov pob khoom lossis cov phiaj xwm- cov ntim tshwj xeeb xa tawm |
ASTM A335 npog seamless yeeb nkab rau elevated -kev pabcuam kub. Qhia welded lwm txoj hauv kev raws li lawv tus kheej cov khoom siv thiab cov kev cai tsim khoom.
Chemical Composition thiab Qib Qib
Cov txiaj ntsig hauv qab no yogHom 1 cua sov- tsom xam siv txwv los ntawm ASTM A335/A335M-24b, qhia raws li pawg feem pua.
| Element | Reference Limit, % |
| C | 0.08–0.12 |
| Mn | 0.30–0.60 |
| P | Tsawg dua lossis sib npaug li 0.020 |
| S | Tsawg dua lossis sib npaug li 0.010 |
| Si | 0.20–0.50 |
| Cr | 8.00–9.50 |
| Mo | 0.85–1.05 |
| V | 0.18–0.25 |
| Nb | 0.06–0.10 |
| N | 0.030–0.070 |
| Ni | Tsawg dua lossis sib npaug li 0.40 |
| Al | Tsawg dua lossis sib npaug li 0.020 |
| Ti | Tsawg dua lossis sib npaug li 0.010 |
| Zr | Tsawg dua lossis sib npaug li 0.010 |
Hom 2 muaj qhov sib txawv ntawm Mn, S, Si, Ni thiab N txwv, ntxiv cov seem seem - tswj hwm thiab N / Al yuav tsum tau ua. Siv cov cua sov kom raug- tsom xam thiab cov khoom lag luam- cov qauv ntsuas.
UNS ID nkag mus:Cov ntawv luam tawm cov npe K90901 rau P91 Hom 1 thiab Hom 2. Cov ntawv qub siv K91560. Txheeb xyuas cov qauv sau tseg rau ntawm daim ntawv pov thawj khoom.
Mechanical Properties thiab Mill Heat Treatment
Cov nqi siv hauv qab no ua raws li ASTM A335 / A335M-24b.
| Khoom lossis Txheej Txheem | Kev Xav Tau |
| Tsawg kawg tensile zog | 585 MPa / 85 ksi |
| Yam tsawg kawg yield zog | 415 MPa / 60 ksi |
| Brinell hardness | 190-250 HWB |
| Ntev ntev elongation | 20% raws li qhov yuav tsum tau ua rau cov qauv tsim nyog; thinner strips thiab lwm yam qauv configurations yuav tsum tau cais kev ntsuam xyuas |
| Normalizing / austenitizing kub | 1040-1080 degree |
| Tempering kub | 730-800 degree |
| Thaum tshav kub kub- txoj kev kho mob | Normalize thiab temper, los yog quench thiab temper |
Kev lees txais zaum kawg ua raws li tsab ntawv xaj, cov khoom lag luam thiab cov kev xeem siv tau.
Rau qhov kev yuav khoom, thov cov ntaub ntawv txheeb xyuas cov khoom siv hluav taws xob, kev kho batch, qhov kub thiab txias thiab cuam tshuam cov txiaj ntsig. Cov txiaj ntsig hardness yuav tsum tau tshuaj xyuas ua ke nrog chemistry, ua keeb kwm thiab qhov yuav tsum tau ua cov kev sim tshuab.
Site-weld ncej-weld heat treatment yuav tsum tau nws tus kheej kev pom zoo vuam txheej txheem thiab thermal voj voog.
P91 Pipe Dimensions thiab Schedules
Cov kev xaiv hauv qab no pab cov neeg yuav khoom npaj cov lus nug. Muaj tau lees paub cais rau txhua qhov loj P91.
| NPS | DN | Sab nraud txoj kab uas hla, mm | SCH 40 Phab, mm | SCH 80 Phab, mm |
| 1/2 | 15 | 21.3 | 2.77 | 3.73 |
| 1 | 25 | 33.4 | 3.38 | 4.55 |
| 2 | 50 | 60.3 | 3.91 | 5.54 |
| 3 | 80 | 88.9 | 5.49 | 7.62 |
| 4 | 100 | 114.3 | 6.02 | 8.56 |
| 6 | 150 | 168.3 | 7.11 | 10.97 |
| 8 | 200 | 219.1 | 8.18 | 12.7 |
| 12 | 300 | 323.8 | 10.31 | 17.48 |
Dimensions ua raws li ASME B36.10 system. STD thiab SCH 40, lossis XS thiab SCH 80, muaj kev sib raug zoo ntawm cov yeeb nkab sib txawv; paub meej tias qhov tseeb phab ntsa thickness thaum xaj.
Rau qhov hnyav -phab ntsa lossis kev cai, muab qhov yuav tsum tau OD thiab phab ntsa thickness, qhia seb phab ntsa yog nominal los yog yam tsawg kawg nkaus, thiab hais txog cov kev kam rau siab ntxiv.
Puas muaj daim ntawv teev loj? Xa koj MTO nrog qhov ntau, qhov ntev thiab qhov kawg npaj rau ib yam khoom -los ntawm - cov lus hais.
Qhov twg siv P91 yeeb nkab
P91 raug txiav txim siab rau kev tsim cov kav dej uas ua kom siab - qhov kub thiab txias thiab ntev - lub sij hawm nkag mus ua haujlwm yog qhov tseem ceeb.
Cov ntawv thov qhov project ib txwm muaj xws li:
Main steam thiab kub reheat piping.
Boiler sab nraud piping thiab header txuas.
Siab - lub zog chav tshuab hauv lub zog - cov chaw tsim khoom.
Hloov cov kav dej hauv cov phiaj xwm kev saib xyuas cog tau pom zoo.
P91 muaj tempered martensitic microstructure nyob rau hauv nws cov kev kho mob zoo. Nws siv hauv kev xav tau kev pabcuam yog nyob ntawm kev khaws cov khoom siv uas xav tau los ntawm kev tsim khoom thiab fabrication.
Tsim qhov kub thiab txias, siab, tso cai rau kev ntxhov siab, phab ntsa thickness, kev tiv thaiv corrosion, kev khiav hauj lwm cycles thiab yuav tsum tau kev pab lub neej yuav tsum tau soj ntsuam ua ke. Cov khoom npe ib leeg tsis tsim kom muaj kev ua haujlwm thoob ntiaj teb -kub lossis siab txwv.
Vuam thiab Fabrication Considerations
P91 fabrication yuav tsum tau tswj lub vuam thermal voj voog thiab cov khoom tshwm sim. Ua ntej fabrication, paub meej tias qhov tsim nyog WPS / PQR chaw nyob:
Kev txheeb xyuas cov khoom siv hauv paus thiab kev xa khoom.
Kev xaiv khoom siv tau thiab qis -hydrogen tuav.
Preheat thiab interpass kub tswj.
Thaum tshav kub kub input thiab welding sequence.
Cov kev xav tau txias ua ntej kev kho cua sov tom ntej.
PWHT kub, tuav lub sijhawm thiab ntsuas kub.
Kev soj ntsuam zaum kawg thiab kev lees txais.
PWHT feem ntau xav tau rau qib 91 fabrication. Vuam kuj tseem tuaj yeem tsim cov cheeb tsam nyob rau hauv cov cua sov- thaj chaw cuam tshuam uas muaj kev cuam tshuam rau lub sijhawm ntev - kev puas tsuaj, suav nrog Hom IV tawg. Cov kev txiav txim siab no ua rau kev tsim cov ntaub ntawv tseem ceeb nrog rau thawj cov yeeb nkab MTC.
Thaum yuav cov khoom siv hloov pauv, txheeb xyuas seb cov yeeb nkab puas yuav txuas rau cov tshiab lossis cov kev pabcuam -cov khoom raug nthuav tawm thiab muab cov kev xav tau ntawm cov haujlwm vuam.
Kev tshuaj xyuas thiab khoom siv Traceability
Txoj kev tshuaj ntsuam xyuas yuav tsum txheeb xyuas cov kev xav tau, kev lees paub thiab cov ntaub ntawv khaws tseg rau txhua qhov kev yuav khoom - xaj khoom.
| Tshawb xyuas | Cov ntaub ntawv los tshuaj xyuas |
| Kev txheeb xyuas cov khoom siv | Standard edition, qib hom, cua sov tooj thiab cov yeeb nkab cim |
| Tshuaj ntsuam xyuas | Cov ntsiab lus yuav tsum tau thiab cov khoom siv hluav taws xob / cov khoom siv hluav taws xob- tsom xam txwv |
| Thaum tshav kub kub- cov ntaub ntawv kho mob | Kev kho mob batch thiab kev sib txuas rau cov khoom siv |
| Mechanical kuaj | Tshaj tawm cov txiaj ntsig, cov ntaub ntawv piv txwv thiab kev lees txais |
| Hardness | Txoj kev xeem, cov txiaj ntsig thiab kev txheeb xyuas cov khoom siv |
| Kev kuaj ultrasonic | Cov txheej txheem, kev pab them nqi, kev lees paub thiab kev tshaj tawm |
| Kev ntsuam xyuas hydrostatic | Kev siv tau, cov kev xav tau tshwj xeeb thiab cov ntaub ntawv xeem |
| Dimensions thiab xaus | OD, phab ntsa, qhov ntev, qhov kawg npaj thiab pom zoo kam rau ua |
| Kev tso tawm zaum kawg | Quantity, marking, ntaub ntawv tiav thiab packing mob |
Rau P91 raws li tsab ntawv siv, kev kuaj xyuas ultrasonic ua raws li ASTM E213. Hydrostatic- qhov yuav tsum tau xeem yog nyob ntawm qhov ntev thiab kev yuav khoom- kev txiav txim.
Dab tsi PMI tuaj yeem txheeb xyuas tau
Handheld XRF tuaj yeem pab tshawb xyuas cov ntsiab lus alloying ntsuas thiab txheeb xyuas cov khoom sib xyaw-ups. Cov pa roj carbon thiab nitrogen xav tau cov txheej txheem kev ntsuas tsim nyog.
Qhia cov ntsiab lus, txoj hauv kev thiab kev lees paub uas xav tau rau koj qhov project. Tshawb xyuas PMI nrog rau MTC thiab lwm yam kev xeem uas xav tau.
Cov ntaub ntawv qhia meej ua ntej xaj
Nyob ntawm qhov project, thov:
EN 10204 3.1 daim ntawv pov thawj tshuaj xyuas.
Thaum tshav kub kub- tus lej traceability.
Tshuaj, tensile thiab hardness tshwm sim.
Thaum tshav kub kub- cov ntaub ntawv kho mob.
UT thiab siv tau hydrostatic- cov ntawv ceeb toom.
PMI los yog kuaj kuaj ntxiv.
Dimensional soj ntsuam thiab ntim cov ntaub ntawv.
Thib peb -kev soj ntsuam tog lossis EN 10204 3.2 kev npaj, qhov pom zoo.
Processing, Packing thiab Delivery
suav nrog txiav, beveling, cim thiab ntim cov cai hauv RFQ kom lawv tuaj yeem tshuaj xyuas nrog cov khoom siv tshwj xeeb.
Rau qhov kev xa khoom, thov kev txheeb xyuas los ntawm kev yuav khoom- xaj khoom, qib, qhov loj me thiab tus lej kub. Nyob qhov twg cov khoom raug txiav, traceability yuav tsum nyob twj ywm txuas nrog cov thawj certified tshav kub.
Kev ntim khoom tuaj yeem teev nyob ib ncig ntawm cov yeeb nkab qhov ntev, txoj kev xa khoom thiab tuav cov xwm txheej. Cov kev cai ib txwm muaj xws li kev tiv thaiv xaus, kev ruaj ntseg bundling, cov ntawv nyeem tau thiab tsim nyog cia lossis kev tiv thaiv kev thauj mus los.
Cov txheej txheem txheej txheej sab nraud yuav tsum raug xaiv nyias rau lawv cov kev pabcuam npaj. Qhia seb puas yuav tsum muaj kev tiv thaiv rau kev thauj mus los, khaws cia lossis ua haujlwm.
Tus nqi thiab lub sij hawm txhuas nyob ntawm qhov loj, phab ntsa thickness, qib hom, muaj cov khoom siv, kev tsim khoom, kev soj ntsuam xyuas, kev ua haujlwm thiab qhov chaw. MOQ thiab lub sijhawm xa khoom raug lees paub tiv thaiv qhov kev nug tiav.
Kev Ua Haujlwm nrog Dongmeng Group
Dongmeng Group txhawb kev qhia tshwj xeeb -raws li kev nug rau kev lag luam piping project.
Xa koj cov ntaub ntawv thov lossis MTO los txhais:
Cov khoom yuav tsum tau thiab tus qauv tsab.
Yam khoom-los ntawm- yam khoom loj thiab qhov ntau.
Kev xa khoom thiab kev soj ntsuam Scope.
Kev ua haujlwm, kos npe thiab ntim cov cai.
Cov ntaub ntawv xav tau thiab qhov chaw xa khoom.
Kev nug kom meej meej pab cov lus hais txog cov kev cai thiab kev lag luam ua ke.
Cov lus nug nquag
1. Puas yog ASTM A335 P91 yeeb nkab seamless lossis welded?
ASTM A335 P91 yog seamless yeeb nkab. Rau qhov yuav tsum tau ua ntawm Qib 91 welded, qhia qhov siv tau welded-cov qauv, qib thiab chav kawm, thiab lees paub qhov kev lees paub.
2. Qhov txawv ntawm ASTM A335 thiab ASME SA335 yog dab tsi?
Lawv yog cov khoom siv tshwj xeeb uas siv hauv cov qauv sib txawv. Qhia qhov tshwj xeeb thiab ib tsab uas xav tau los ntawm qhov project, thiab paub meej tias cov ntaub ntawv pov thawj txhawb nqa qhov yuav tsum tau ua.
3. Kuv puas yuav tsum qhia P91 Hom 1 lossis Hom 2?
Siv hom xav tau los ntawm qhov project cov khoom specification. Nug tus neeg muag khoom kom paub meej tias hom tawm tsam cov ntawv pov thawj chemistry thiab cov kev xav tau ua ntej lees txais cov lus hais.
4. P91 puas tuaj yeem hloov P9 lossis P22?
Kev hloov pauv yuav tsum tau kev pom zoo engineering. Tshawb xyuas cov qauv tsim kev ntxhov siab, qhov ntev, cov khoom sib xyaw ua ke, cov kev xav tau tsim thiab kev pabcuam ua ntej hloov cov khoom siv.
5. Puas yog P91 yeeb nkab thiab T91 raj sib hloov tau?
Lawv nyob rau qib 91 tsev neeg tab sis siv cov khoom sib txawv. ASTM A213 npog boiler, superheater thiab cua sov-exchanger tubes; ASTM A335 npog siab -kub yeeb nkab. Paub meej txog cov khoom tsim nyog thiab cov qauv.
6. Qhov siab tshaj plaws ua haujlwm kub ntawm P91 yog dab tsi?
Tsis muaj ib qho kev txwv tsis pub siv rau txhua qhov P91 yeeb nkab. Qhov kev tso cai yog nyob ntawm tus qauv tsim qauv, kev ntxhov siab, phab ntsa thickness, kev pabcuam ib puag ncig thiab kev ua haujlwm yuav tsum tau ua.
7. Cov txiaj ntsig PMI puas txaus rau kev txais khoom?
Kev lees txais cov khoom yuav tsum muaj kev sib xyaw ua ke ntawm kev txheeb xyuas, chemistry, kho thiab tshuaj xyuas cov ntaub ntawv. Paub meej tias txoj kev ntsuas ntsuas tuaj yeem ntsuas txhua qhov xav tau los ntawm txoj kev kuaj xyuas.
8. Kuv puas tuaj yeem thov UT thiab kuaj hydrostatic?
Yog, suav nrog ob qhov kev xav tau hauv RFQ. Txoj kev npaj tshuaj ntsuam xyuas yuav tsum txheeb xyuas cov khoom siv yuav tsum tau ua - cov qauv yuav tsum tau muaj thiab lwm yam kev yuav khoom ntxiv.
9. Puas tuaj yeem npaj EN 10204 3.2 ntawv pov thawj?
Qhia qhov yuav tsum tau ua ua ntej kev txiav txim pom zoo. Cov tog neeg pov thawj, theem tshuaj ntsuam thiab kev npaj cov ntaub ntawv yuav tsum tau pom zoo ua ntej.
10. P91 yeeb nkab puas tuaj yeem muab txiav kom ntev lossis beveled?
Cov kev cai no tuaj yeem suav nrog rau kev hais lus. Muab qhov yuav tsum tau ua ntev ntev, bevel geometry thiab txhua yam yuav tsum tau khaws cia cov ntaub ntawv txheeb xyuas tom qab txiav.
11. Dab tsi yog MOQ thiab lub sijhawm khoom xa tuaj?
Lawv nyob ntawm qhov xav tau qhov loj me, qhov ntau, cov khoom muaj, kev kho mob, kev ua haujlwm thiab kev soj ntsuam xyuas. Xa cov lus qhia ua tiav kom tau txais ib yam khoom - cov lus qhia tshwj xeeb.
12. Dab tsi cuam tshuam rau tus nqi ntawm P91 yeeb nkab?
Cov yam tseem ceeb muaj xws li qhov ntev, phab ntsa thickness, qib hom, kom muaj nuj nqis, muab txoj kev, kev kho mob, tshuaj xyuas, ua thiab freight. Sib piv cov lus tawm tsam tib qhov kev qhia tshwj xeeb thiab cov ntaub ntawv xav tau.
Thov ib qho ASTM A335 P91 Pipe Quotation
Xa cov ntaub ntawv hauv qab no:
Standard thiab tsab + P91 hom + NPS / OD + phab ntsa thickness + kom muaj nuj nqis + ntev + xaus + soj ntsuam yuav tsum tau + lo lus uas peb.
Rau qhov project enquiries, xa koj MTO, BOM los yog piping khoom specification.
Piv txwv nug:
ASTM A335 P91 Hom 1, tsab ntawv yuav tsum tau lees paub / NPS 6 / SCH 80 / 6 m lengths / beveled xaus / 10 MT / EN 10204 3.1 / qhov yuav tsum tau soj ntsuam qhov txuas / lo lus uas peb: Jebel Ali.
Xi'an Dongmeng Group Co., Ltd.
Xov tooj: +86 157 6921 4734
Email:office@dongmjd.com
WhatsApp: Hu rau Dongmeng Group
Chaw Ua Haujlwm: Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province.
Cim npe nrov: ASME SA335 P91 yeeb nkab; P91 seamless yeeb nkab; P91 chrome moly yeeb nkab; P91 alloy steel yeeb nkab; P91 yeeb nkab xa khoom; P91 yeeb nkab specifications; P91 kub kho manufacturers, lwm tus neeg, Hoobkas
