Xi'an Dongmeng Group Co., Ltd. yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm UNS N08020 N08024 N08026 Seamless 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.
UNS N08020, N08024 thiab N08026 Seamless Nickel Alloy Pipe
Dongmeng Group muab seamless npib tsib xee- hlau-chromium-molybdenum- tooj liab alloy yeeb nkab thiab raj hauvUNS N08020, UNS N08024 thiab UNS N08026rau kev ua tshuaj lom neeg, sulfuric-cov kua qaub, cov khoom siv pickling, kub exchangers thiab lwm yam corrosive- daim ntawv thov kev pab.
Cov khoom tuaj yeem muab cov khoom kub ua tiav lossis ua haujlwm txias, nrog kev tswj xyuas cov cua sov, cov khoom siv traceability, kev tshuaj xyuas qhov ntev thiab kev kuaj xyuas hydrostatic lossis tsis muaj kev puas tsuaj.
Daim Ntawv Ceeb Toom Tseem Ceeb:ASTM B729-20 raug tshem tawm los ntawm ASTM International thaum Lub Peb Hlis 12, 2026, tsis muaj tus qauv hloov pauv. Kev txiav txim tshiab yuav tsum txheeb xyuas seb tus neeg yuav khoom puas lees txais cov cai ASTM B729-20 keeb kwm lossis xav tau lwm txoj haujlwm tam sim no, ASME, engineering lossis cov neeg siv khoom tshwj xeeb. ASTM B829-24 tseem yog tus qauv kev xav tau dav dav, tab sis nws tsis yog nws tus kheej hloov ASTM B729-20.
Dab tsi yog N08020, N08024 thiab N08026?
Peb cov ntaub ntawv no yog corrosion- hlau tiv taus-nickel- chromium alloys uas muaj ntau qib molybdenum, tooj liab, niobium thiab nitrogen.
Lawv muaj feem cuam tshuam los ntawm keeb kwm ASTM cov khoom lag luam tab sis yuav tsum tsis txhob piav qhia yooj yim li "Alloy 20."
UNS N08020
UNS N08020 yog cov khoom siv feem ntau hu uaAlloy 20los yog Ntoo 20Cb-3.
Nws muaj kwv yees li:
32-38% npib tsib xee
19-21% chromium
2-3% molybdenum
3-4% tooj liab
Niobium ntxiv rau tantalum stabilization
N08020 tau tsim los rau sulfuric-cov kev pabcuam acid thiab tseem muaj txiaj ntsig zoo hauv ib puag ncig uas muaj chlorides, nitric acid thiab phosphoric acid.
Cov Hlau tshwj xeeb sau cov tso tsheb hlau luam sib xyaw, cov khoom siv hluav taws xob sib txuas, cov txheej txheem kav dej, cov khoom siv pickling, twj, li qub thiab fittings ntawm nws cov neeg sawv cev daim ntawv thov.
UNS N08024
UNS N08024 muaj ntau dua nickel, chromium thiab molybdenum dua N08020, nrog qis tooj liab thiab tswj tau niobium ntxiv.
Nws yuav tsum raug txheeb xyuas los ntawm nws qhov tseeb UNS lub npe tshwj tsis yog lub npe khoom lag luam traceable tau qhia rau ntawm daim ntawv pov thawj khoom.
Tsis txhob piav qhia N08024 li "Alloy 20Cb-3." Carpenter Technology txheeb xyuas 20Cb-3 raws li UNS N08020.
UNS N08026
UNS N08026 feem ntau cuam tshuam nrog Cov Neeg Ntoo20 Mo-6.
Nws muaj kwv yees li 5.0-6.7% molybdenum ua ke nrog chromium, npib tsib xee, tooj liab thiab nitrogen.
Tus kws kho mob piav qhia N08026 raws li tiv taus kub, qis -pH chloride ib puag ncig, nrog kev ua haujlwm zoo rau pitting, crevice corrosion thiab chloride stress-corrosion cracking. Nws yog npaj los ua kom tiav N08020 qhov chaw siab dua- yuav tsum muaj kev tiv thaiv corrosion.
UNS N08020 / N08024 / N08026 Txheej txheem cej luam
Muaj Qib:UNS N08020 / N08024 / N08026
Cov Khoom Siv:Seamless Tube / Seamless Tube / Txiav -Length Tube
Legacy Product Specification:ASTM B729-20 Cov Lus Qhia Tshwj Xeeb
Tam sim no General Requirements:ASTM B829-24, qhov kev cog lus siv tau
Txoj kev tsim khoom:Kub Tiav / Txias Ua Haujlwm / Txias Drawn
Kev kho cua sov:Stabilized Annealed / Tshuaj Annealed / Annealed
Hom Pipe Range:OD 10.3–219.1 hli / Phab ntsa 1.2–12.7 mm
Hom Tube Ntau Yam:OD 9.53–152.4 hli / Phab ntsa 0.889–8.56 mm
Ntev:Random Length / Fixed Length / Project-Tshwj xeeb Length
Xaus:Plain / Deburred / Beveled / Machined
Nto:Pickled / Bright Annealed / Mechanically tiav
Kev kuaj:Hydrostatic / Eddy Tam sim no / Ultrasonic / PMI
Cov ntaub ntawv:EN 10204 3.1 MTC / NDT Report / Dimensional Report
Kev ua:Txiav / Beveling / Khoov / Machining / Custom Marking
Tag nrho qhov ntev thiab qhov muaj hlau alloy yuav tsum tau lees paub tiv thaiv cov zeb xaiv, txoj kev tsim khoom thiab qhov project specification ua ntej kev txiav txim txais.
ASTM B729 Tus Qauv Txheej Txheem
ASTM B729-20 keeb kwm npog seamless, txias- ua haujlwm lossis kub tiav cov yeeb nkab thiab raj hauv:
UNS N08020
UNS N08024
UNS N08026
Cov khoom tau npaj rau kev pabcuam corrosive.
ASTM tau thim tawm B729-20 hauv lub Peb Hlis 2026 yam tsis tau tshaj tawm qhov hloov pauv ncaj qha. Yog li ntawd nws yuav tsum tau piav raws li ib tugqub los yog legacy specification, tsis yog raws li ASTM tus qauv tam sim no.
Yuav Ua Li Cas Tshiab Orders Yuav Tsum Qhia
Daim ntawv xaj xaj tshiab yuav tsum hais ib qho ntawm cov hauv qab no:
ASTM B729-20 cov cai lij choj tau txais los ntawm tus neeg yuav khoom
Tam sim no ASME / BPVC specification thiab ib tsab
Cov neeg siv khoom specification
Pom zoo engineering cov ntaub ntawv
Lwm yam khoom siv tam sim no thiab cov yeeb nkab txheem
Cov kev xav tau ntxiv raws li ASTM B829-24
Rau siab- cov khoom siv, tus neeg yuav khoom yuav tsum paub meej tias cov khoom siv tau raug tso cai los ntawm tus qauv tsim qauv.
ASTM B829-24 muaj cov kev cai dav dav rau npib tsib xee thiab npib tsib xee- alloy seamless yeeb nkab thiab raj, suav nrog qhov loj me, kev tshuaj xyuas thiab kev sim. Txawm li cas los xij, nws yog ib qho kev qhia dav dav thiab tsis yog nws tus kheej txhais cov khoom lag luam tshwj xeeb uas yuav tsum tau muaj nyob rau hauv B729.
Alloy sib piv
| Yam khoom | UNS N08020 | UNS N08024 | UNS N08026 |
| Kev Qhia Kom Paub | Alloy 20/20Cb-3 | Qhia los ntawm UNS tus lej | 20 Mo-6 |
| Nickel | 32.0–38.0% | 35.0–40.0% | 33.0–37.2% |
| Chromium | 19.0–21.0% | 22.5–25.0% | 22.0–26.0% |
| Molybdenum | 2.0–3.0% | 3.5–5.0% | 5.0–6.7% |
| Tooj | 3.0–4.0% | 0.5–1.5% | 2.0–4.0% |
| Stabilizing Ntxiv | Nb + Ta | Nb | Nitrogen |
| Kev kho cua sov keeb kwm | Stabilized annealed | Annealed | Tshuaj annealed |
| Txoj Kev Xaiv Lub Ntsiab | Sulfuric-acid thiab tshuaj sib xyaw ua haujlwm | Siab dua - alloy muaj pes tsawg leeg nrog Nb stabilization | Cov tshuaj chloride hnyav dua thiab hauv cheeb tsam- corrosion kuj |
Lub rooj yog qhov kev sib piv ua ntej nkaus xwb. Kev xaiv cov khoom kawg yuav tsum muaj cov ntaub ntawv corrosion rau cov txheej txheem tiag tiag.
Tshuaj muaj pes tsawg leeg
| Element | UNS N08020 | UNS N08024 | UNS N08026 |
| Cov pa roj carbon, max. | 0.07% | 0.03% | 0.03% |
| Manganese, max. | 2.00% | 1.00% | 1.00% |
| Phosphorus, max. | 0.05% | 0.04% | 0.03% |
| Sulfur, max. | 0.04% | 0.04% | 0.03% |
| Silicon, max. | 1.00% | 0.50% | 0.50% |
| Nickel | 32.00–38.00% | 35.00–40.00% | 33.00–37.20% |
| Chromium | 19.00–21.00% | 22.50–25.00% | 22.00–26.00% |
| Molybdenum | 2.00–3.00% | 3.50–5.00% | 5.00–6.70% |
| Tooj | 3.00–4.00% | 0.50–1.50% | 2.00–4.00% |
| Niobium + Tantalum | 8 × C rau 1.00% | 0.15-0.35% Nb | - |
| Nitrogen | - | - | 0.10–0.16% |
| Hlau | Tshuav | Tshuav | Tshuav |
Cov no yog cov keeb kwm ASTM B729-20 qhov txwv tsis pub muaj. Kev lees txais zaum kawg yuav tsum ua raws li qhov tshwj xeeb ntawm MTC thiab cov lus qhia tshwj xeeb tau teev nyob rau hauv daim ntawv xaj yuav khoom.
Thaum tshav kub kub keeb kwm -Kev kho mob yuav tsum tau
Raws li yav dhau los ASTM B729-20, peb qib muaj cov khoom siv sib txawv.
| Qib | Keeb kwm kev xa khoom | Pom zoo Annealing Range |
| UNS N08020 | Stabilized annealed | 982-1010 degree |
| UNS N08024 | Annealed | 1052-1079 degree |
| UNS N08026 | Tshuaj annealed | 1121-1204 degree |
Cov khoom yuav tsum tau dej quenched los yog sai txias los ntawm lwm txoj kev tsim nyog tom qab annealing.
Thaum tshav kub kub- cov ntaub ntawv kho mob yuav tsum txheeb xyuas:
Rauv batch
Kub kub
Tuav lub sijhawm
Txoj kev txias
Khoom siv cua sov tooj
Tube qhov ntev
Yam khoom kawg
Cov cua sov-kev kho mob saum toj no yog los ntawm kev tshem tawm ASTM B729-20 cov cai thiab yuav tsum tsis txhob siv rau lwm qhov kev tswj xyuas tshwj xeeb.
Keeb Kwm Yam Tsawg Mechanical Properties
Yav dhau los ASTM B729-20 tau teev cov nram qab no yam tsawg kawg nkaus chav-kub khoom rau cov qib kawm:
| Khoom | Keeb kwm yam tsawg kawg nkaus |
| Tensile zog | 550 MPa |
| 0.2% Yield zog | 240 MPa |
| Elongation | 30% |
Cov txiaj ntsig no yog cov khoom lag luam keeb kwm - specification minima es tsis yog universal design values.
Cov khoom tiag tiag yuav txawv nrog:
Alloy qib
Kub- lossis txias- tiav lawm
Tube qhov ntev
Thaum tshav kub kub- kev kho mob
Tus nqi ntawm kev ua haujlwm txias
Kuaj-thooj geometry
Siv tau qhov project standard
Rau kev siv, Cov Hlau Tshwj Xeeb tshaj tawm ib txwm annealed N08020 qhov tseem ceeb ntawm kwv yees li 620 MPa tensile lub zog, 300 MPa yield zog thiab 40% elongation, tab sis cov nuj nqis no tsis yog hloov pauv rau daim ntawv cog lus yam tsawg kawg nkaus.
Pom zoo Product Specifications
| Parameter | Muaj Kev Xav Tau |
| Khoom | Seamless yeeb nkab los yog seamless raj |
| Qib | N08020, N08024 thiab N08026 |
| Keeb kwm khoom Standard | ASTM B729-20, tshem tawm |
| Kev Xav Tau | ASTM B829-24, thaum muaj ntawv cog lus |
| Pipe Order Method | NPS thiab teem caij lossis teev OD thiab phab ntsa |
| Tube Ordering Method | OD × nruab nrab los yog tsawg kawg nkaus phab ntsa thickness |
| Hom Pipe OD | 10.3–219.1 hli |
| Hom yeeb nkab phab ntsa | 1.2-12.7 hli |
| Hom Tube OD | 9.53–152.4 hli |
| Hom Tube Phab ntsa | 0.889–8.56 hli |
| Ntev | Random, tsau lossis kos duab- tshwj xeeb |
| Kev tsim khoom | Kub tiav, txias ua haujlwm lossis txias kos |
| Nto | Pickled, ci annealed los yog mechanically tiav |
| Xaus | Plain, deburred, beveled los yog machined |
| Kev tshuaj xyuas | Hydrostatic los yog nondestructive kuaj |
| Cov ntaub ntawv | MTC, cua sov-cov ntaub ntawv kho mob thiab tshuaj ntsuam xyuas |
Tsis txhob tshaj tawm nplooj ntawv tam sim no cov lus tsis txhawb nqa ntawm:
6-610 hli seamless raj
1/8-30 inch tub
Teem caij 5 txog Teem caij 160 rau txhua qib
tshwj tsis yog tias txhua qhov kev txhawb nqa los ntawm kev txheeb xyuas cov khoom tsim thiab cov kev tsim khoom tam sim no.
N08024 thiab N08026 tsis tshua muaj ntau dua N08020, yog li lawv qhov loj me thiab qhov tsawg kawg nkaus yuav tsum tau lees paub ua ntej hais.
Tube vs Tube Ordering
Seamless Yeeb Nkab
Cov yeeb nkab feem ntau txiav txim siv:
Nominal yeeb nkab loj
Teem caij los yog phab ntsa
Ntev
Kev npaj kawg
Kev sim
Siv tau piping code
Piv txwv:
UNS N08020, NPS 2, Teem sijhawm 40, 6 m, beveled kawg
Seamless Tube
Tube feem ntau txiav txim siv:
Qhov tseeb sab nraud txoj kab uas hla
Nruab nrab lossis tsawg kawg ntawm phab ntsa thickness
Ntev
Dimensional kam rau ua
Deg mob
NDT xav tau
Piv txwv:
UNS N08020, 38.1 × 2.77 × 6000 hli seamless raj
Yav dhau los ASTM B729 xav kom tus neeg yuav khoom los txheeb xyuas cov yeeb nkab los ntawm cov yeeb nkab txheem qhov loj thiab lub sijhawm, thiab lub raj los ntawm sab nraud txoj kab uas hla nrog qhov nruab nrab lossis tsawg kawg ntawm phab ntsa tuab.
Kev tsim khoom
Ib qho seamless npib tsib xee-alloy tube manufacturing txoj kev suav nrog:
Alloy billet thiab cua sov-kev txheeb xyuas tus lej
Billet txias thiab cua sov
Kub tho los yog extrusion
Kub dov los yog pilger ua
Pickling thiab nruab nrab tu
Kev kos duab txias lossis txias pilgering thaum xav tau
Thaum kawg annealing los yog daws kev kho mob
Kev txias txias sai
Ncaj ncaj
Dimensional calibration
Nto xov
Hydrostatic los yog nondestructive kuaj
Kev tshuaj xyuas zaum kawg thiab kos npe
Export ntim
Cov hlau tshwj xeeb sau tseg tias txias- ua haujlwm seamless npib tsib xee- alloy tubing tuaj yeem tsim los ntawm kev txo cov raj los yog kos duab txias raws li cov hlau, qhov loj me thiab qhov yuav tsum tau ua tiav.
Hydrostatic thiab Nondestructive Test
Raws li cov kev cai qub B729, txhua lub yeeb nkab lossis lub raj yuav tsum tau txais los ntawm:
Kev ntsuam xyuas hydrostatic; los yog
Kev kuaj hluav taws xob tsis muaj kev puas tsuaj
Cov chaw tsim khoom tuaj yeem xaiv txoj hauv kev tshwj tsis yog tias daim ntawv xaj yuav tau teev lwm yam.
Cov ntaub ntawv keeb kwm yuav tsum muaj:
Ib qho tshuaj ntsuam xyuas rau ib qho ntau
Ib qho khoom siv tshuab- kuaj vaj tse rau ib qho
Hydrostatic los yog hluav taws xob kuaj ntawm txhua daim
ASTM B829-24 tseem yog qhov tseem ceeb tshaj plaws- yuav tsum tau ua tshwj xeeb rau seamless npib tsib xee thiab nickel-alloy yeeb nkab thiab raj thiab tuaj yeem muab cov qauv ntsuas kev pom zoo thaum cog lus hais txog.
Kev tshuaj xyuas qhov project muaj xws li:
Kev ntsuam xyuas hydrostatic
Eddy- kev sim tam sim no
Kev kuaj ultrasonic
Kev txheeb xyuas cov khoom zoo
Sab nraud - txoj kab uas hla
Phab ntsa-Tickness tshuaj xyuas
Kev tshuaj xyuas ncaj ncees
Kev tshuaj xyuas saum npoo
Xaus- kev tshuaj xyuas kev npaj
Thib peb-tog pov thawj
Daim ntawv xaj yuav tsum hais txog NDT txoj kev xaiv thiab qib kev lees txais.
Corrosion-Kev txiav txim siab tsis kam
Sulfuric Acid
N08020 tau tsim tshwj xeeb rau sulfuric-acid ib puag ncig.
Nws cov nickel, chromium, molybdenum thiab tooj liab cov ntsiab lus muab kev tiv thaiv thoob plaws ntau sulfuric - acid concentrations thiab kub. Txawm li cas los xij, kev ua haujlwm corrosion hloov raws li qhov xav tau, qhov kub thiab txias, aeration, cov kab mob sib kis, tshaj tawm thiab cua sov- hloov cov xwm txheej.
Chloride Ib puag ncig
N08020 muab cov txiaj ntsig zoo tiv thaiv kev ntxhov siab chloride- corrosion cracking piv nrog cov pa 300-series stainless hlau.
N08026 muaj ntau ntau molybdenum thiab tswj nitrogen, ua rau nws muaj zog ua ntej tus neeg sib tw qhov twg pitting, crevice corrosion thiab kub, qis -pH chloride raug yog cov kev txhawj xeeb tseem ceeb.
Phosphoric thiab Mixed Acids
N08020 thiab N08026 tej zaum yuav raug txiav txim siab rau xaiv phosphoric-acid thiab sib xyaw tshuaj ib puag ncig.
Kev xaiv cov khoom siv yuav tsum siv cov ntaub ntawv corrosion uas sawv cev rau qhov tseeb:
Acid concentration
Kub
Kev kis kab mob
Oxidation muaj peev xwm
Flow ceev
Kev tso nyiaj
Crevice geometry
Thaum tshav kub kub-hloov nto
Tsis txhob xaiv ib qho alloy los ntawm lub npe acid ib leeg.
N08020 vs N08026
| Xaiv Factor | N08020 | N08026 |
| Nickel | 32–38% | 33–37.2% |
| Chromium | 19–21% | 22–26% |
| Molybdenum | 2–3% | 5–6.7% |
| Tooj | 3–4% | 2–4% |
| Nitrogen | Tsis tau teev tseg | 0.10–0.16% |
| Lub zog tseem ceeb | Sulfuric-acid thiab tshuaj lom neeg tsis kam | Nce hauv zos- corrosion kuj |
| Kev txhawj xeeb | Kub chloride pitting hnyav yuav xav tau ntau dua alloy | Cov khoom siv ntau dua thiab muaj tsawg dua |
| Kev Lag Luam Muaj | Muaj dav dav | Ntau qhov txwv |
N08026 ua tiav N08020 ntau dua li kev hloov pauv thoob ntiaj teb. Carpenter piav qhia txog 20Mo-6 raws li npaj rau kev pabcuam uas yuav tsum tau muaj zog pitting thiab crevice-corrosion kev ua tau zoo tshaj 20Cb-3.
Fabrication thiab Vuam
N08020 tuaj yeem tsim thiab welded siv cov nickel tsim nyog - alloy fabrication xyaum.
Nws niobium stabilization pab txo cov carbide- ntsig txog kev hnov mob, tso cai rau ntau cov khoom siv welded kom nkag mus rau qhov kev pabcuam corrosive yam tsis muaj kev sib cais -weld anneal. Qhov no tsis tshem tawm qhov kev xav tau ntawm kev tsim nyog vuam txheej txheem.
Cov kev xav tau ntawm vuam yuav tsum qhia meej:
Base - alloy UNS tus lej
Tsim nyog WPS thiab PQR
Filler -kev kos npe hlau
Thaum tshav kub kub input
Interpass kub
Kev sib koom ua ke tu
Tiv thaiv roj
Rov qab purging
Thaum tshav kub kub-tint tshem tawm
Pickling los yog passivation
Final NDT
Cov Hlau Tshwj Xeeb teev cov nickel- alloy vuam consumables rau N08020, suav nrog ntau lub nickel-chromium-molybdenum muab tub lim. Qhov kawg muab tub lim xaiv yuav tsum tau ua los ntawm qhov project vuam engineer.
Tsis txhob welding N08020, N08024 thiab N08026 siv ib txoj kev generic yam tsis tau lees paub qhov tseeb cov khoom siv thiab cov kev pabcuam.
Tej kev siv
Cov alloys no yuav raug txiav txim siab rau:
Sulfuric-acid txheej txheem piping
Cov txheej txheem tshuaj
Cov khoom siv Pickling
Acid hloov kab
Kub exchangers
Sib tov cov tank
Cov khoom siv distillation
Kev tsim tshuaj
Kev ua chiv
Phosphoric{0}}acid systems
Petroleum processing
Pumps thiab li qub
Flue-cov khoom siv roj av
Cov kuab tshuaj thiab cov organic-kev tsim tshuaj
Kev cai corrosion-resistant piping assemblies
Cov Hlau tshwj xeeb txheeb xyuas cov txheej txheem piping, cov khoom siv hluav taws xob sib txuas, sib xyaw tso tsheb hlau luam, cov khoom siv pickling, twj, li qub thiab fittings raws li tus neeg sawv cev N08020 daim ntawv thov.
N08026 tej zaum yuav raug txiav txim siab rau cov tshuaj chloride hnyav dua, tshuaj txhuam thiab ntub dej - txheej txheem phosphoric-acid ib puag ncig, raug rau qhov project- kev ntsuam xyuas tshwj xeeb corrosion.
Kev Tswj Xyuas Zoo
Kev tshuaj xyuas tuaj yeem npaj tau raws li kev pom zoo yuav khoom tshwj xeeb thiab kev tshuaj xyuas thiab kev npaj kuaj.
Cov tswj muaj xws li:
Thaum tshav kub kub-ntaub thiab cov khoom siv-qib pov thawj
Tshuaj- tshuaj ntsuam xyuas
Kev kuaj PMI
Thaum tshav kub kub- kho cov ntaub ntawv pov thawj
Tensile thiab yield test
Kev ntsuas elongation
Sab nraud - txoj kab uas hla
Phab ntsa-Tickness tshuaj xyuas
Kev tshuaj xyuas ovality thiab straightness
Surface thiab xaus
Kev ntsuam xyuas hydrostatic
Eddy-tam sim no los yog kuaj ultrasonic
Kev kuaj xyuas qhov kawg
Thib peb-tog pov thawj
Cov ntaub ntawv muaj
EN 10204 3.1 Mill Test Certificate
Tshuaj ntsuam xyuas
Mechanical test report
Thaum tshav kub kub- cov ntaub ntawv kho mob
Hydrostatic test report
Eddy- daim ntawv qhia kev xeem tam sim no
Daim ntawv ntsuam xyuas Ultrasonic
PMI daim ntawv qhia
Dimensional soj ntsuam daim ntawv qhia
Certificate of Conformity
Kub- daim ntawv teev npe
Thib peb-toj soj ntsuam daim ntawv qhia
Cov ntawv ntim khoom
Cov ntaub ntawv xav tau pob yuav tsum tau lees paub ua ntej ntau lawm.
Ntim thiab Traceability
Nickel- alloy seamless raj tuaj yeem ntim nrog:
Yas kawg caps
Waterproof qhwv
Tus kheej tes tsho
Ua npuas ncauj los yog ntawv cais
Hlau los yog ntoo txhawb thav ntawv
Cov rooj tog ntoo
Desiccant rau kev xa khoom hiav txwv
Thaum tshav kub kub- tus lej cim
Qib thiab dimension tag
Cov neeg siv khoom - cov cim xa khoom tshwj xeeb
Tus xov tooj cua sov yuav tsum nyob twj ywm traceable ntawm:
Cov yeeb nkab cim
MTC
Thaum tshav kub kub- cov ntaub ntawv kho mob
NDT report
Cov ntawv ntim khoom
Bundle ID nkag mus
Vim li cas thiaj xaiv Dongmeng Group?
Dongmeng Group txhawb corrosion-resistant alloy tej yaam num nrog:
N08020 seamless yeeb nkab thiab raj muab
N08024 thiab N08026 qhov project nrhiav
Txoj cai lij choj- qauv kev tshuaj xyuas
Kev cai OD thiab phab ntsa -thickness nug
Tsau -ntev txiav
Xaus beveling thiab machining
PMI thiab NDT kev sib koom tes
Thaum tshav kub kub- tus lej traceability
Thib peb-kev soj ntsuam tog
Qhov project cov ntaub ntawv pob
Export seaworthy ntim
FOB, CFR, CIF thiab DDP shipping txhawb
Txhua qhov kev nug yuav tsum raug tshuaj xyuas tawm tsam qhov kev qhia tshwj xeeb tam sim no ua ntej cov ntaub ntawv raug muab raws li ASTM-, ASME- lossis code- ua raws.
Thov ib daim ntawv qhia kev
Thov muab:
Yuav tsum muaj qib UNS
Tswj specification thiab tsab
Kev lees paub ntawm keeb kwm ASTM B729-20 txais
Lub raj lossis lub raj
NPS thiab teem caij lossis OD × phab ntsa
Qhov nruab nrab lossis qhov tsawg kawg nkaus phab ntsa yuav tsum tau
Ntev
Ntau
Kev tsim khoom
Thaum tshav kub kub - kev kho mob yuav tsum tau
Nto tiav
Kev npaj kawg
Hydrostatic lossis NDT yuav tsum tau
Tsim code
Tsim kub
Txheej txheem dej thiab concentration
Cov ntaub ntawv xav tau
Chaw nres nkoj qhov chaw lossis chaw nyob xa khoom
Lub tuam txhab:Dongmeng Group
Email: office@dongmjd.com
Xov tooj / WhatsApp: +86 157 6921 4734
Lub Vev Xaib:www.cndmmetal.com
Cov lus nug nquag
Puas yog ASTM B729 tseem ua haujlwm?
No. ASTM B729-20 raug rho tawm thaum Lub Peb Hlis 12, 2026, yam tsis muaj kev hloov pauv. Nws tsuas yog siv tau raws li keeb kwm lossis daim ntawv cog lus lees paub kev cai qub qub.
Puas yog ASTM B829 hloov ASTM B729?
No. ASTM B829-24 yog ib qho kev ua haujlwm dav dav-cov qauv yuav tsum muaj rau npib tsib xee- alloy seamless yeeb nkab thiab raj. Nws tsis yog nws tus kheej muab tag nrho cov kev cai tshwj xeeb alloy yav dhau los muaj nyob rau hauv B729.
Cov khoom puas tseem tuaj yeem muab rau ASTM B729-20?
Lub chaw tsim khoom tuaj yeem cog lus tsim cov khoom siv rau cov ntaub ntawv keeb kwm kev cai yog tias tus neeg yuav khoom, txoj cai tsim thiab siv cov cai tso cai rau nws. Qhov kev txiav txim yuav tsum tau hais meej meej txog 2020 tsab thiab txhua qhov kev xav tau ntxiv.
Puas yog N08024 tib yam li Alloy 20Cb-3?
Tsis yog. Tus kws kho mob txheeb xyuas 20Cb-3 lossis Alloy 20 raws li UNS N08020. N08024 yuav tsum tau teev tseg siv nws lub npe UNS tseeb tshwj tsis yog tias lub npe muaj npe uas tau lees paub.
N08026 yog dab tsi?
N08026 feem ntau cuam tshuam nrog 20Mo-6, siab dua-molybdenum alloy tsim los kom muaj zog pitting, crevice-corrosion thiab chloride-ib puag ncig kev ua tau zoo dua li cov pa Alloy 20.
Puas yog tag nrho peb cov alloys hu ua Alloy 20?
No. N08020 yog qib feem ntau hu ua Alloy 20. N08024 thiab N08026 muaj cov tshuaj sib txawv thiab yuav tsum tau txheeb xyuas los ntawm lawv cov lej UNS.
Dab tsi yog qhov tsawg kawg nkaus tensile lub zog raws li ASTM B729-20?
Cov keeb kwm yam tsawg kawg nkaus tensile lub zog yog 550 MPa, nrog yam tsawg kawg nkaus yield zog ntawm 240 MPa thiab yam tsawg kawg nkaus elongation ntawm 30%.
Puas yog txhua cov yeeb nkab hydrostatically kuaj?
Yav dhau los ASTM B729 xav tau txhua daim kom tau txais ib qho kev sim hydrostatic lossis kev ntsuas hluav taws xob tsis zoo. Cov chaw tsim khoom tau xaiv txoj kev tshwj tsis yog tias daim ntawv xaj yuav tau teev lwm yam.
Puas yog N08020 haum rau sulfuric acid?
N08020 yog tsim los rau sulfuric-acid ib puag ncig, tab sis kev tsim nyog nyob ntawm acid concentration, kub, aeration, kab mob, tshaj tawm thiab cua sov- hloov tej yam kev mob.
Thaum twg yuav tsum tau txiav txim siab N08026?
N08026 tuaj yeem txiav txim siab qhov twg molybdenum siab dua thiab muaj zog dua hauv cheeb tsam- yuav tsum muaj corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv kub, qis -pH chloride ib puag ncig. Kev xaiv zaum kawg yuav tsum muaj cov ntaub ntawv tiv thaiv corrosion.
Koj puas tuaj yeem muab beveled lossis machined kawg?
Yog lawm. Plain, deburred, beveled thiab kos duab - tshwj xeeb machined kawg tuaj yeem tshuaj xyuas raws li lub raj qhov ntev thiab kev txiav txim kom muaj nuj nqis.
Cov ntaub ntawv twg tuaj yeem muab tau?
Cov ntaub ntawv muaj xws li MTC, cua sov-cov ntaub ntawv kho mob, hydrostatic lossis NDT cov ntaub ntawv, PMI, kev tshuaj xyuas qhov ntev, Daim ntawv pov thawj ntawm kev sib raug zoo thiab thib peb-cov ntaub ntawv tshuaj xyuas tog.
Cim npe nrov: UNS N08020 seamless yeeb nkab, Alloy 20 seamless yeeb nkab, N08024 nickel alloy raj, N08026 seamless raj, 20Mo-6 yeeb nkab, nickel alloy txheej txheem yeeb nkab, sulfuric acid resistant yeeb nkab
