ASME SB675 UNS N08367 AL6XN welded yeeb nkab
Hom: Seamless, Welded
OD: 1/2 "-48"
Thickness: SCH5-SCHXXS
Ntev: 0-12M, Customized
Txheej Txheem: Kub / Cold Rolled, Kub ua haujlwm, Txias kos
Zhengzhou Huitong Yeeb Nkab Khoom Co., Ltd. Peb zoo siab tos txais koj los yuav peb ASME SB675 UNS N08367 AL6XN Welded Yeeb Nkab. Peb lub Hoobkas kuj lees txais cov kev txiav txim customized. Thov pub dawb kom txaus siab rau peb cov nqi sib tw thiab kev pabcuam zoo heev.
ASME SB675 UNS N08367 Welded Yeeb Nkab (AL-6XN) Cov Khoom, Kev Siv & Corrosion
ASME SB 675 / ASTM B675 UNS N08367 welded yeeb nkab (AL-6XN) yog 6% Mo super austenitic stainless hlau. Nws muaj superior pitting thiab chloride corrosion kuj nrog zoo weldability. Hauv xyoo 2026, tus nqi ib txwm nyob ntawm $ 8.5- $ 16 / kg nyob ntawm qhov loj thiab phab ntsa tuab. Nws yog dav siv nyob rau hauv seawater systems, desalination nroj tsuag, thiab tshuaj ua cov khoom uas 316L tsis.
UNS N08367 Welded Pipe Nqe (2026)
| Loj / Dimension | Phab ntsa Thickness | Nqe (USD / kg) | Nqe (USD/ton) |
| 1/2"–2" | SIB 10–40 | $9.5–$16 | $9,000–$16,000 |
| 2"–6" | SIB 10–80 | $8.8–$14.5 | $8,500–$14,500 |
| 6"–12" | SIB 10–60 | $8.5–$13.5 | $8,000–$13,500 |
| >12" | Kev cai | $9–$15 | $8,500–$15,000 |
Tiv tauj pebrau kev cai qhov ntev thiab ib qho kev tsocai pub dawb.
AL6XN Pipe yog dab tsi?
UNS N08367, feem ntau hu ua AL-6XN, yog superaustenitic stainless hlau. Cov hlau muaj cov nickel siab (24-26%), chromium (20-22%), molybdenum (6-7%), thiab nitrogen, muab tshwj xeeb tiv thaiv chloride pitting thiab crevice corrosion.
Kev sib xyaw ntau yam:
Cr: 20-22%
Niag: 23-25%
Mos: ~ 6-7%
N: ~0.18–0.25%
Siab heevPREN (Pitting Resistance Tus lej 45–49)
Zoo heev tiv tauschloride-induced corrosion
Stable austenitic qauv (tsis muaj teeb meem tsim martensite)
UNS N08367 (AL6XN) yog lub siab -kev ua tau zoo austenitic stainless hlau nrog zoo corrosion kuj thiab kav ntev. Nws yog feem ntau siv nyob rau hauv kev lag luam uas yuav tsum tau ua hauj lwm rau hnyav ib puag ncig, xws li tshuaj ua, marine, thiab lub zog tsim. UNS N08367 (AL6XN) yog cov hlau uas tau tswj hwm los ntawm ntau lub cev qauv thoob ntiaj teb. Qhov tseem ceeb tshaj plaws ntawm cov no yog ASTM (American Society for Testing and Materials). Nws tseem raug lees paub los ntawm ntau lub koom haum, suav nrog ANSI, ASME, thiab ISO. Cov qauv no xyuas kom meej tias UNS N08367 (AL6XN) ua tau raws li kev tswj hwm nruj, ua rau nws xaiv rau ntau daim ntawv thov.
AL6XN stainless hlau yeeb nkab Chemical Composition:
| Qib | UNS | C Tsawg dua lossis sib npaug | Mn | P Tsawg dua lossis sib npaug | S Tsawg dua los yog sib npaug | Si Less than los sib npaug | Cr | Mo | Ni | Cu |
| AL-6 XN | N08367 | 0.03 | 2 | 0.04 | 0.03 | 1 | 20.0-22.0 | 6.0-7.0 | 23.5-25.5 | 0.75 |
UNS N08367 Mechanical Physical Properties:
UNS N08367 (AL6XN) muaj qhov ceev ntawm 7.82 g / cm3 thiab melting point ntawm 1380-1420℃. Nws muaj lub zog tawm los ntawm 300 MPa, tensile zog ntawm 650 MPa, thiab elongation ntawm 40%. Cov khoom siv kuj tseem tiv taus corrosion, txawm nyob rau hauv ib puag ncig hnyav xws li seawater, acidic chemicals, thiab high-temperature settings.
AL-6XN Corrosion Resistance Analysis (Engineering View)
1. Chloride Pitting Resistance Zoo
Seawater (>3.5% NaCl)
Brine systems
Desalination RO tsis lees txais cov kab
Yog vim li cas: High Mo + N synergy nce passive zaj duab xis stability
2. Crevice Corrosion Zoo
Heat exchanger tube nplooj ntawv
Flanged pob qij txha
Gasketed piping systems
316L feem ntau ua tsis tiav ntawm<50°C in stagnant seawater, while N08367 remains stable significantly higher.
3. Stress Corrosion Cracking (SCC) Zoo
Resistant chloride SCC mus rau nruab nrab siab kub
Zoo dua li duplex hauv qee qhov qis- kev ntxhov siab, siab -chloride ib puag ncig
ASTM B675 N08367 Cov yeeb nkab loj thiab qhov ntev
| NPS (inch) | DN (hli) | Muaj |
| 1/2" | DN15 | Tshuag / Semi- Tshuag |
| 3/4" | DN 20 | Tshuag |
| 1" | DN 25 | Tshuag |
| 1-1/2" | DN40 | Tshuag |
| 2" | DN 50 | Tshuag |
| 3" | DN 80 | Tshuag |
| 4" | DN100 | Tshuag |
| 6" | DN150 | Tshuag |
| 8" | DN200 | Tshuag |
| 10" | DN250 | Semi- khoom |
| 12" | DN 300 Nws | Semi- khoom |
| 14"–24" | DN350-600 | Qhov project-raws li |
| 30"–48" | DN750-1200 | Fabricated |
Yog xav paub ntxiv txog qhov ntev thiab phab ntsa thicknesses, thov mus saibASME B36.19.
ASME SB 675 UNS N08367 Welded Pipe Applications
AL6XN stainless hlau yeeb nkab yog ib qho kev xaiv nrov rau kev lag luam uas yuav tsum muaj kev tiv thaiv corrosion siab, nrog rau kev siv dej hiav txwv, kev ua tshuaj lom neeg, kev tsim cov ntaub ntawv thiab cov ntawv, thiab kev tsim hluav taws xob. Nws kuj tseem siv tau rau hauv kev tsim cov khoom siv hluav taws xob, cov hlab ntsha siab, thiab cov kav dej thiab fittings hauv ntau qhov chaw tsim khoom. Nws superior corrosion kuj ua rau nws zoo tagnrho rau siv nyob rau hauv hnyav ib puag ncig thiab qhov chaw siab ntawm durability yuav tsum tau.
UNS N08367 (AL6XN) yeeb nkab yog siab -kev ua tau zoo austenitic stainless hlau uas yog zoo- haum rau siv nyob rau hauv ntau yam kev lag luam daim ntaub ntawv. Nws zoo heev corrosion kuj zog, lub zog, thiab toughness ua rau nws zoo tagnrho rau siv nyob rau hauv ib puag ncig uas yuav tsum tau durability thiab kuj rau hnyav tej yam kev mob. Cov ntaub ntawv siv hauv kev tsim cov yeeb nkab ua tau raws li cov qauv kev tswj xyuas nruj kom ntseeg tau tias kev ua haujlwm tsis zoo thiab ua haujlwm ntev. Txawm hais tias siv rau hauv kev siv dej hiav txwv, kev tsim hluav taws xob, lossis kev ua tshuaj, UNS N08367 (AL6XN) ss yeeb nkab yog cov khoom siv txhim khu kev qha thiab nyab xeeb uas ua tau raws li qhov xav tau tshaj plaws. Yog li ntawd, nws yog ib qho kev xaiv zoo heev rau cov ntawv thov uas yuav tsum tau tshwj xeeb tiv thaiv corrosion thiab qib siab ntawm durability.
Qhov kub thiab txias
- Kev pabcuam txuas ntxiv: mus txog ~ 260-300 degree
- luv-lub sij hawm raug: ntau dua, tab sis corrosion kuj yuav txo tau
Tsis haum rau:
- High-temperature oxidation (>400℃ntev -lub sijhawm)
- Creep-cov kev pabcuam tseem ceeb (siv Inconel 625 / 800H hloov)
UNS N08367 vs 316L Stainless hlau
| Khoom | UNS N08367 (AL-6XN) UA | 316L Stainless hlau |
| PREN Tus nqi | 45–50+ | 24–26 |
| Pitting Resistance | Zoo heev (seawater nyab xeeb) | Nruab nrab |
| Molybdenum | 6–7% | 2–2.5% |
| Nickel | 24–26% | 10–14% |
| Max Chloride Resistance | Siab heev | Txwv tsis pub |
| Kev Pabcuam Lub Neej hauv Seawater | 15-25 xyoo | 3-8 xyoo |
| Nqe (USD / kg) | $8.5–$16 | $2.5–$5 |
316L yog kev lag luam, tab sis UNS N08367 yuav tsum tau ua kom ntev -lub neej chloride thiab seawater systems.
AL-6XN VS 254 SMO VS Duplex 2205
| Khoom | UNS N08367 (AL-6XN) UA | TIAB SA 2205 | 254 SIB |
| Hom | Super Austenitic | Duplex | Super Austenitic |
| PREN | ~45–49 | ~34–38 | ~42–44 |
| Mo cov ntsiab lus | 6–7% | 3–3.5% | 6–6.5% |
| Chloride kuj | ★★★★★ | ★★★★ | ★★★★ |
| SCC tsis kam | Zoo heev | Zoo | Zoo heev |
| Weldability | Zoo (tswj) | Nruab nrab | Zoo |
| Tus nqi ntsuas | $$$$ | $$$ | $$$$ |
Offshore Projects Real Engineering Experience
Hauv cov dej num hauv ntug dej tiag tiag, UNS N08367 feem ntau xaiv thaum 316L qhia pom thaum ntxov hauv 6-12 lub hlis vim muaj cov tshuaj chlorides siab dua 5000 ppm.
AL-6XN yog "overkill rau dej tshiab tab sis tseem ceeb rau seawater loops"
Fabricators nyiam nws rau desalination skids vim kev kwv yees corrosion tus cwj pwm
Tus nqi yog siab pib tab sis txo qis kev hloov pauv lub neej poob qis heev
Ntau:
1. "316L ua tsis tau sai dhau ntawm kev pabcuam dej hiav txwv"
Lub hauv paus ua rau: underestimated chloride concentration + stagnant aav
Kev daws feem ntau hloov kho mus rau AL-6XN lossis 254 SMO
2. Weld corrosion nyob rau hauv kev pab cuam chloride
Thaum tshav kub kub tint zones corroding ua ntej
Kev txhim kho engineering: Tsim nyog rov qab purging + pickling
3. Duplex vs super- tsis meej pem austenitic
Duplex=lub zog kom zoo dua
AL-6XN=corrosion stability kom zoo dua hauv dej hiav txwv qis
Tej teeb meem engineering xws li:
Weld sensitization txaus ntshai yog siv cov cua kub tsis zoo
Crevice corrosion ntawm flange pob qij txha nyob rau hauv cov seawater stagnant cheeb tsam
Galvanic corrosion thaum txuas ncaj qha rau carbon steel
Yuav ua li cas kom tsis txhob tawg thiab corrosion tom qab vuam?
Thaum vuam UNS N08367, cov khoom siv hluav taws xob yuav tsum tau tswj nruj me ntsis (<150°C typical). Due to its high molybdenum content, the material is highly susceptible to the precipitation of intermetallic phases during welding, which can significantly reduce its corrosion resistance. It is recommended to use matching filler metal (such as Inconel 625 welding wire) and ensure that the weld undergoes proper pickling and passivation.
Siv rau cov qauv tsim nyog
ASME B675: (feem ntau suav hais tias yog ASME SB-675) yog tus qauv specification rau UNS N08367 welded yeeb nkab.
FAQ:
Q: UNS N08367 welded yeeb nkab siv rau dab tsi?
A: Nws yog siv nyob rau hauv seawater systems, desalination nroj tsuag, tshuaj ua, thiab offshore piping qhov twg chloride corrosion yog heev.
Q: Tus nqi ntawm ASME SB675 UNS N08367 yeeb nkab hauv xyoo 2026 yog dab tsi?
A: Tus nqi feem ntau yog li ntawm $ 8.5 txog $ 16 ib kg nyob ntawm qhov loj, phab ntsa thickness, thiab qib ntawv pov thawj.
Q: UNS N08367 vs 316L - uas zoo dua?
A: UNS N08367 muaj ntau dua corrosion kuj nyob rau hauv chloride ib puag ncig, thaum 316L yog pheej yig dua tab sis tsis ntev.
Q: Puas yog UNS N08367 haum rau dej hiav txwv?
A: Yog, nws yog ib qho zoo tshaj plaws stainless hlau rau cov dej hiav txwv tsis tu ncua thiab desalination systems.
Q: Puas tuaj yeem UNS N08367 welded yooj yim?
A: Yog, nws muaj qhov zoo weldability, tab sis yuav tsum tau tswj cov cua sov thiab cov ncej kom zoo - vuam tu kom muaj kev tiv thaiv corrosion.
Q: Vim li cas AL-6XN kim dua stainless hlau?
A: Vim muaj cov nickel siab, molybdenum, thiab nitrogen cov ntsiab lus, uas ua rau muaj kev txhim kho corrosion thiab kev ua haujlwm ntawm lub neej.
Hais txog Zhengzhou Huitong Pipeline Equipment Co., LTD.
HT PIPE yog ib tug zoo-paub stockist thiab exporter. Peb yog cov khoom siv stainless / carbon / npib tsib xee alloy khoom xa khoom nrog 15+ kev xa tawm. Peb tsis tsuas yog muab cov kav dej, phaj, puag ncig, tab sis kuj yog cov yeeb nkab fittings, flanges, thiab lwm yam. Tiv tauj peb kom paub ntau ntxiv thiab cov nqi dawb.
✅ ISO 9001: 2015
✅ MTC 10204 3.1 3.2
✅ 100% PMI (Positive Material Identification)
✅ Ultrasonic Testing (Rau ASME VIII)
✅ Third-Kev Tshawb Fawb Kev Tshawb Fawb (SGS/BV/DNV/LR)
✅ NACE MR0175 / ISO 15156
Author: Chloe Pu
5+ Xyoo ntawm Kev Tshaj Lij Tshaj Lij Tshaj Tawm hauv Stainless Hlau, Nickel Alloy & Carbon Steel Hlau Kev Lag Luam
Hloov tshiab kawg: Lub Rau Hli 16, 2026 (Beijing Sijhawm)
Cim npe nrov: ASME SB675 UNS N08367 AL6XN Welded yeeb nkab, Tuam Tshoj, manufacturers, hoobkas, nqe, customized
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