A335 P91 Kub Kub Seamless Yeeb Nkab
A335 P91 siab-kub ferritic alloy steel yeeb nkab yog cov cua sov-resistant alloy steel yeeb nkab siv nyob rau hauv siab- kub thiab siab- kev siv siab, uas yog cov khoom siv qib P91 hauv American ASTM A335 tus qauv. Cov yeeb nkab hlau no feem ntau yog tsim los ntawm cov hlau alloying xws li chromium, molybdenum, vanadium, thiab niobium, muaj qhov zoo heev - kub lub zog, oxidation tsis kam, thiab creep kuj. Nws yog dav siv nyob rau hauv siab - kub thiab siab - cov kav raj xa dej hauv thermal fais fab nroj tsuag, nuclear fais fab nroj tsuag, petrochemical, thiab lub zog teb, xws li cov khoom tseem ceeb xws li boiler superheaters, reheaters, thiab chav pipelines.
Gnee Steel (Tianjin) Co., Ltd. yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm a335 p91 siab kub seamless yeeb nkab nyob rau hauv Tuam Tshoj, kuj txhawb customized kev pab cuam nrog luv nqi. Txais tos rau cov lag luam wholesale luv nqi a335 p91 kub seamless yeeb nkab rau muag ntawm no los ntawm peb lub hoobkas. Tiv tauj peb rau cov qauv dawb.
A335 P91 alloy yeeb nkabyog seamless ferritic alloy steel yeeb nkab rau siab -kev siv kub nyob rau hauv American ASTM A335 / A335M tus qauv, sib xws rau 10Cr9Mo1VNbN (ie, P91) hauv Suav GB5310, X10CrMoVNb9-1 hauv European EN 102176STBA-26, thiab Japanese Nws cov tshuaj muaj pes tsawg leeg yog tib yam: C 0.08–0.12%, Cr 8.0–9.5%, Mo 0.85–1.05%, V 0.18–0.25%, Nb 0.06–0.10%, N 0.03–0.07%.
Hais txog cov khoom siv kho tshuab, ASTM yuav tsum muaj lub zog tensile Ntau dua lossis sib npaug ntawm 585MPa thiab lub zog tawm los Ntau dua lossis sib npaug ntawm 415MPa ntawm chav tsev kub; GB5310 muaj cov kev xav tau zoo sib xws thiab tseem qhia txog qhov siab - kev ua haujlwm kub ntawm 600℃.
Txawm tias cov txheej txheem sib txawv,A335 P91yog muaj ntau yam nyob rau hauv supercritical fais fab nroj tsuag tej yaam num thoob ntiaj teb. Cov ntaub ntawv los ntawm ntau lub teb chaws tau txais kev pom zoo ntawm kev sib xyaw thiab kev ua tau zoo, tsuas yog qhov sib txawv me ntsis ntawm cov khoom tshuaj ntsuam xyuas (xws li cuam tshuam qhov ntsuas kub) thiab cov ntsiab lus xa khoom.
GNEE Group yog cov chaw tsim khoom thiab cov chaw muag khoom ntawmA335 P91 chromium-molybdenum alloy kav. Peb tau nruab nrog qhov tseeb eddy tam sim no kuaj thiab cov khoom siv ntsuas hydrostatic kom ntseeg tau qhov zoo ntawm txhua cov yeeb nkab. Cov ntaub ntawv pov thawj yog muab nrog txhua lub yeeb nkab thaum xa khoom.Tiv tauj pebrau siab - zooA335 P91 siab - kub thiab siab - siab alloy kavrau koj cov chaw tsim hluav taws xob, roj refineries, thiab cov nroj tsuag tshuaj.
A335 P91 Tsawg Alloy Seamless Round Pipes specification
| Specifications | ASTM A 335 / ASME SA 335 |
| Loj | 1/8 "NB rau 30" NB IN |
| Teem caij | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS, UPTO 4 "WALL THICK |
| Ntev | Ib qho Random, Ob Chav Random & Ntev Ntev, Kev Cai Loj - 12 Meter ntev |
| Daim ntawv | Round, Square, Rectangular, Hydraulic thiab lwm yam. |
| Hom | Seamless |
P91 seamless ferritic alloy - steel yeeb nkab Chemical Composition
| Qib | C % | Mn% | P % | S % | Si% | Cr% | Mo% |
|---|---|---|---|---|---|---|---|
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020 max | 0.010 max | 0.20 -0.50 | 8.00 - 9.50 | 0.85 - 1.05 |
P91 Chrome Moly Alloy Seamless Yeeb Nkab Mechanical Properties
| Qib | Tensile zog, MPa | Yield zog, MPa | Elongation,% |
|---|---|---|---|
| P91 | 585 nqi | 415 nqi | 20 feeb |
A335 P91 Chrome Moly Alloy Seamless Yeeb Nkab Chaw tsim khoom thiab Dimensional Specifications
Tsim los siv cov txheej txheem kub dov lossis txias txheej txheem, nrog rau sab nraud ntawm 10.3-1219 hli thiab phab ntsa tuab ntawm 2.0-120 hli. Cov raj kub dov yuav tsum tau tho → nruam dov → sizing → straightening txheej txheem, thaum txias-daws hlab yuav tsum tau ntau txoj kab uas hla txo. Cov ntsiab lus tseem ceeb tswj cov txheej txheem suav nrog:
- Kub deformation kub ntau: 900-1150 degree, qhov kawg dov kub: tsis qis dua 850 degree
- Txias deformation ib kis: Tsawg dua lossis sib npaug li 20%, tag nrho deformation: Tsawg dua lossis sib npaug li 60%
- Cov khoom tiav yuav tsum tau dhau 100% eddy tam sim no kuaj lossis kuaj ultrasonic, nrog rau qhov tsis xws luag rhiab heev ntawm 0.5 hli.
Rau cov kev cai tshwj xeeb, kev txhaj tshuaj sab hauv (Sa2.5 qib) lossis pickling passivation tuaj yeem ua tau, nrog rau qhov roughness Ra tsawg dua lossis sib npaug li 12.5μm. Raws li ASME B36.10M tus qauv, cov kev qhia tshwj xeeb xws li Φ323.9 × 36mm thiab Φ457 × 50mm feem ntau yog 6-12.5m ntev.
A335 P91 Seamless Ferritic Alloy Steel Yeeb Nkab Weldability Analysis
1. A335P91 steel muaj martensitic microstructure thiab feem ntau muab nkag rau hauv lub xeev normalized + tempered. Raws li lub siab- alloy steel, nws muaj qhov tsis zoo weldability thiab nws yooj yim rau kev tawg, weld sib koom ua ke embrittlement, thiab softening hauv cheeb tsam HAZ. Kev ua raws li cov txheej txheem tshwj xeeb yog qhov tseem ceeb kom tau txais cov khoom sib txuas zoo.
2. Kev tswj xyuas nruj ntawm vuam thiab kev kho cua sov, siv cov vuam qis qis, yog qhov tseem ceeb heev kom ua tiav cov hauv paus nkag mus ntawm qhov vuam.
3. Ib qho nruab nrab preheating kub, qhov zoo tshaj plaws tswj nyob rau hauv thaj tsam ntawm 150℃~ 200 degree, muaj txiaj ntsig zoo rau kev ntws ntawm cov hlau molten hauv lub pas dej ua ke thiab kov yeej qhov teeb meem ntawm kev ua tsis tiav fusion thiab nkag mus rau hauv cov hauv paus weld tshwm sim los ntawm qhov nyuaj ntawm kev noj cov hlau hauv siab -Cr alloy steels.
A335 P91 seamless ferritic alloy - steel yeeb nkab Main Daim Ntawv Thov Cheeb Tsam
Kev lag luam fais fab
Cov ntawv thov tseem ceeb: Kev tsim khoom siab -kub superheaters thiab reheaters rau subcritical thiab supercritical boilers, nrog rau siab - kub taub hau thiab chav kav nrog phab ntsa kub tsawg dua lossis sib npaug li 600℃.
Qhov zoo: Ntawm 550-650 degree, nws qhov kev cia siab tuaj yeem yog ob npaug ntawm cov hlau ib txwm muaj (xws li T9 thiab 2.25Cr-1Mo steel), thiab nyob rau tib lub sijhawm, cov yeeb nkab phab ntsa tuab tuaj yeem txo los ntawm 40%, txo cov nqi khoom thiab cov khoom hnyav. Piv txwv li, nyob rau hauv ib tug 600MW supercritical boiler, tom qab P91 steel kav hloov tsoos 12Cr1MoV steel, lub superheater raj phab ntsa thickness raug txo los ntawm 35 hli mus rau 21 hli, thiab cov thermal efficiency tau zoo dua los ntawm kwv yees li 2%.
Kev lag luam Petrochemical
Cov ntawv thov tseem ceeb: Siv nyob rau hauv cov tub rauv, siab -kub thiab siab - siab reactors, heat exchangers, thiab kis pipelines nyob rau hauv roj av cracking units.
Qhov zoo: Nws cov chromium siab (8.0%-9.5%) thiab molybdenum (0.85%-1.05%) cov ntsiab lus endows cov hlau nrog zoo heev tiv thaiv hydrogen sulfide corrosion thiab siab -kub oxidation, ua rau lub sij hawm ntev kev ruaj ntseg nyob rau hauv cov xov xwm uas muaj sulfur. Piv txwv li, nyob rau hauv hydrocracking units, P91 steel kav, hloov TP304 stainless hlau, ncua kev pab cuam lub neej mus rau ntau tshaj 10 xyoo thiab txo nqi txij nkawm los ntawm 50%.
Kev siv Aerospace
Cov ntawv thov tseem ceeb: Kev tsim khoom siab - qhov kub thiab txias xws li aero- cav combustion chambers thiab turbine blades.
Advantages: Under extreme high-temperature (>650℃) thiab siab - ib puag ncig siab, P91 steel kav muaj qhov muaj zog nkag siab zoo thiab nkag siab zoo piv rau cov hlau alloy zoo tib yam, ua tau raws li ob qhov kev xav tau ntawm lub teeb yuag thiab kev ntseeg siab rau aero - cov khoom siv cav.
Lwm Cov Kev Siv Hluav Taws Xob
Machinery thiab Instrumentation: Siv nyob rau hauv kev tsim high - precision mechanical qhov chaw, xws li siab - kub thiab siab - siab li qub thiab lub twj tso kua mis. Nws lub zog siab thiab corrosion kuj ua kom ntev - lub sijhawm ruaj khov ntawm cov khoom siv.
Environmental Engineering: Nyob rau hauv flue gas desulfurization thiab denitrification units, P91 steel kav tuaj yeem tiv taus acidic media corrosion, ncua kev pab cuam lub neej.
A335 P91 Chrome Moly Alloy Seamless Yeeb Nkab Hoobkas
A335 P91 Siab-Tub kub Alloy Steel Pipes Ntim thiab xa khoom
Cim npe nrov: a335 p91 siab kub seamless yeeb nkab, Tuam Tshoj a335 p91 siab kub seamless yeeb nkab manufacturers, lwm tus neeg, Hoobkas
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