Thaum muab khoom316L stainless hlau kavrau cov haujlwm thoob ntiaj teb, cov neeg yuav khoom tsom rau peb qhov tseem ceeb ntawm kev ua haujlwm:
Pipe Loj (NPS / DN / OD)
Phab ntsa Thickness (Schedule / hli / nti)
Dimensional Tolerances (OD, WT, Ntev, Ncaj)
Kev nkag siab txog cov qauv thoob ntiaj teb ua kom muaj kev sib tw, kev lis kev cai, kev pom zoo rau qhov project, thiab kev soj ntsuam thib peb ntawm - tog. Daim ntawv qhia kev tshaj lij no muab cov ntaub ntawv loj thiab xa tawm-cov ntaub ntawv npaj rau B2B cov neeg yuav khoom, EPC cov neeg cog lus, thiab cov xa tawm.
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Siab Zoo
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Khoom siv Advanced
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Pab neeg tshaj lij
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Kev Pabcuam Kev Cai
International Standards rau 316L Stainless hlau kav
Feem ntau cov xa tawm -qib 316L cov kav dej ua raws li:
ASTM A312 - Seamless & Welded Austenitic Stainless hlau yeeb nkab
ASME B36.19M - Stainless Hlau Yeeb Nkab Dimensions (Schedule)
TS EN 10216-5 Seamless Stainless Hlau Tubes (Tebchaws Europe)
TS EN 10217-7 Welded Stainless Hlau Tubes
JIS G3459 Stainless Hlau Pipes (Nyiv)
Rau B2B xa tawm, ASTM & ASME cov qauv tau txais dav tshaj plaws hauv Middle East, North America, thiab Southeast Asia.
Standard Pipe Loj (NPS / DN / OD)
316L stainless hlau kav feem ntau yog muab raws li Nominal Pipe Size (NPS).
2.1 Hom NPS Loj Ntau Yam (Export Standard)
| NPS (inch) | DN (hli) | Sab nraud txoj kab uas hla (mm) | Sab nraud Dia (inch) |
|---|---|---|---|
| 1/8" | DN 6 | 10.3 hli | 0.405" |
| 1/4" | DN 8 | 13.7mm 3 | 0.540" |
| 1/2" | DN15 | 21.3mm ib | 0.840" |
| 1" | DN 25 | 33.4mm ib | 1.315" |
| 2" | DN 50 | 60.3mm ib | 2.375" |
| 4" | DN100 | 114.3mm 3 | 4.500" |
| 6" | DN150 | 168.3mm 3 | 6.625" |
| 8" | DN200 | 219.1mm 3 | 8.625" |
| 10" | DN 250 | 273.0mm ib | 10.750" |
| 12" | DN 300 Nws | 323.9mm ib | 12.750" |
| 24" | DN 600 Nws | 6 09,6mm | 24.000" |
Hom ntau lawm ntau:
Seamless: 1/8 "- 24"
Welded: 1/2 "- 48" (los yog loj dua raws li qhov kev thov)
Phab ntsa Thickness - Teem caij System
Phab ntsa thickness yog txhais los ntawm Schedule (SCH) raws li ASME B36.19M.
3.1 Cov Sij Hawm Rau 316L Stainless Hlau Yeeb Nkab
| NPS 2" Example | Phab ntsa Thickness (mm) | Phab ntsa Thickness (inch) |
|---|---|---|
| SCH 5 S | 2.11mm 3 | 0.083" |
| SCH 10 S | 2.77mm ib | 0.109" |
| SCH 40 S | 3.91mm ib | 0.154" |
| SCH 80 S | 5.54mm ib | 0.218" |
| TIAB SA 160 | 8.74mm ib | 0.344" |
Feem ntau cov sij hawm export:
SCH 10S (lub teeb muaj kev siv)
SCH 40S (cov kav dej dav dav)
SCH 80S (siab dua tshuab)
Rau kev lag luam huv huv, tuab kuj tseem tuaj yeem teev ncaj qha hauv mm es tsis yog lub sijhawm.
Dimensional Tolerances (raws li ASTM A312)
4.1 Sab nraud Diameter (OD) kam rau ua
| OD Qhov Loj Loj | Ua siab ntev |
|---|---|
| Tsawg dua los yog sib npaug li 48.3 hli | ± 0.4 hli |
| >48.3mm ib | ±1% |
4.2 Phab ntsa Thickness kam rau ua
Seamless Yeeb Nkab: −12.5% / + Tsis txwv (tshwj tsis yog tau teev tseg)
welded yeeb nkab: -10% / + Tsis txwv (tus qauv)
Lus Cim: Cov neeg yuav khoom tuaj yeem hais kom nruj dua qhov kev ua siab ntev raws li kev pom zoo.
4.3 Ntev Tolerance
| Hom | Txheem Length |
|---|---|
| Random Ntev | 5-7 m |
| Ob chav Random | 10-12 m |
| Tsau Ntev | ± 3 hli (Customized) |
Export tej yaam num feem ntau xav tau taag txiav ntev nrog beveling.
Seamless vs Welded Loj Muaj
| Qhov xwm txheej | Seamless 316L | Vuam 316L |
|---|---|---|
| Me kab | Zoo heev | Zoo heev |
| Nruab nrab | Zoo | Zoo heev |
| Loj Dia | Txwv & Nqi | Ntxiv Economical |
| Phab ntsa tuab | Zoo heev | Txwv tsis pub |
Rau qhov loj - txoj kab uas hla, nyias- phab ntsa tshuab (piv txwv li, kev kho dej, kev ua zaub mov), cov kav dej welded yog tus nqi ntau dua - zoo.
Export Ntim Standards
Rau kev xa khoom thoob ntiaj teb, 316L stainless hlau kav yog feem ntau:
Yas kawg caps tiv thaiv
Bundled nrog steel hlua
Muab qhwv rau hauv cov hnab ntim dej tsis muaj dej
Ntim rau hauv rooj plaub ntoo (rau me me txoj kab uas hla los yog precision raj)
Fumigated ntoo crates (yog tias xav tau los ntawm lub teb chaws qhov chaw)
Txhua pob khoom muaj xws li:
Thaum tshav kub kub naj npawb traceability
Cov khoom siv qib cim
Loj & teem caij npav
Standard siv
Thib peb-Kev soj ntsuam tog rau B2B Export
Export tej yaam num yuav tsum tau soj ntsuam los ntawm:
SGS
BV (Bureau Veritas)
TUV
Intertek
Kev tshuaj xyuas feem ntau suav nrog:
PMI (Positive Material Identification)
Kev ntsuam xyuas hydrostatic
Kev kuaj ultrasonic
Kev txheeb xyuas qhov ntev
Mill Test Certificate (EN 10204 3.1)
Kev txiav txim siab tseem ceeb rau cov neeg yuav khoom B2B
Ua ntej kev txiav txim, paub meej tias:
Yuav tsum muaj tus qauv (ASTM / EN / JIS)
NPS thiab Schedule
Seamless los yog Welded
Ntev yuav tsum tau
Nto tiav (pickled, polished, thiab lwm yam)
Kev soj ntsuam xyuas
Lub teb chaws qhov chaw ua raws
FAQ
1. Tus qauv loj npaum li cas rau 316L stainless hlau kav?
Raws li ASTM A312 thiab ASME B36.19M:
Seamless:1/8 "- 24" (NPS)
Welded:1/2 "- 48" (los yog loj dua raws li qhov kev thov)
Metric qhov ntau thiab tsawg (DN series) feem ntau muab raws li European qauv.
2. Lub sij hawm xa tawm feem ntau yog dab tsi?
Rau cov haujlwm thoob ntiaj teb, feem ntau xaj phab ntsa thicknesses yog:
SCH 10 S- Lub teeb muaj & qis -siab tshuab
SCH 40 S- General industrial piping
SCH 80 S- Ntau dua - cov ntawv thov siab
Cov no tau txhais raws li ASME B36.19M.
3. Dab tsi yog OD kam rau ua rau 316L kav dej?
Raws li ASTM A312:
OD Tsawg dua lossis sib npaug 48.3 hli → ± 0.4 hli
OD> 48.3 hli → ± 1%
Tighter tolerances yuav sib tham rau precision tej yaam num.
4. Dab tsi yog phab ntsa thickness kam rau ua?
Yam tolerances:
Seamless yeeb nkab:-12.5% / + tsis txwv
Welded yeeb nkab:-10% / + tsis txwv
Qhov project-kev zam tshwj xeeb tuaj yeem pom zoo raws li hauv daim ntawv cog lus yuav khoom.
5. Cov yeeb nkab ntev npaum li cas yog ib txwm muab rau kev xa tawm?
Common export lengths:
Random ntev: 5-7 meters
Ob chav random: 10-12 meters
Tsau ntev: Kev cai txiav (± 3 hli kam rau ua raug)
Kev txiav ntev ntev yog feem ntau xav tau rau EPC thiab kev tsim kho cov haujlwm.
6. Cov kav dej 316L puas tuaj yeem muab tau rau hauv ob lub nti thiab metric systems?
Yog lawm. Cov kav dej tuaj yeem muab rau hauv:
NPS (inch{0}}raws li system - ASTM/ASME)
DN (Metric system - EN cov qauv)
Direct mm OD × mm phab ntsa thickness (nruj rau cov kav dej huv)
7. Puas muaj - txoj kab uas hla 316L kav dej?
Yog lawm. Cov kav dej welded yog kev lag luam ntau dua thiab muaj nyob rau hauv cov kab loj dua (txog 48 "los yog siab dua).
8. Cov ntaub ntawv tshuaj xyuas dab tsi yog xav tau rau kev xa tawm?
Cov ntaub ntawv xa tawm feem ntau suav nrog:
Mill Test Certificate (EN 10204 3.1)
Hydrostatic Test Report
PMI (Positive Material Identification)
Thib peb- daim ntawv pov thawj tshuaj xyuas tog (yog tias xav tau)
Cov koom haum soj ntsuam yuav suav nrog SGS, BV, TUV, lossis Intertek nyob ntawm qhov yuav tsum tau ua.
9. Cov kav dej ntim li cas rau kev xa khoom thoob ntiaj teb?
Standard export ntim muaj xws li:
Yas kawg caps
Bundled nrog steel hlua
Waterproof qhwv
Ntoo crates (yog tias xav tau)
Fumigation daim ntawv pov thawj (rau qee lub tebchaws)
10. Yuav ua li cas cov neeg yuav khoom paub meej qhov tseeb specification ua ntej xaj?
B2B cov neeg yuav khoom yuav tsum paub meej tias:
Txuj (ASTM / EN / JIS)
Hom yeeb nkab (Seamless lossis Welded)
NPS / DN loj
Teem caij lossis phab ntsa thickness
Ntev yuav tsum tau
Nto tiav
Qib soj ntsuam
Kev paub meej meej meej txo qhov kev xa khoom yuam kev thiab ua kom cov kev lis kev cai du.
11. Dab tsi yog MOQ rau export xaj?
MOQ nyob ntawm qhov loj thiab ntau lawm txoj kev. Seamless kav feem ntau yuav tsum tau ntau lawm ntau npaum li cas, thaum welded kav cia ntau saj zawg zog ordering.
12. Lub sij hawm xa khoom nruab nrab yog dab tsi rau kev xa tawm ntau?
Seamless: 20-35 hnub
Welded: 15-25 hnub
Lub sij hawm xa tuaj txawv nyob ntawm qhov ntau thiab tsawg thiab xaj ntim.
