ASTM B338 vs ASTM B 861
Qhov tseem ceeb tshaj qhov txawv ntawmASTM B338 titanium rajthiabASTM B{0}} titanium rajnyob rau hauv lawv qhov kev tsim khoom thiab xaus - siv lub hom phiaj.
| Txuj | Txoj kev tsim khoom tseem ceeb | Yam kawg siv | |
|---|---|---|---|
| ASTM B 338 Cov | Seamless thiab Welded Titanium thiab Titanium Alloy Tubes rau Condensers thiab Kub Exchangers | Seamless (txias kos) & Welded (strip tsim) | Thaum tshav kub kub exchangers, condensers, deg coolers |
| ASTM B 861 | Seamless Titanium thiab Titanium Alloy Pipes | Seamless nkaus xwb (extruded los yog pilgered) | Siab -cov kav dej siab, cov kab hloov tshuaj lom neeg |
ASTM B861 seamless titanium yeeb nkabyog tshwj xeeb seamless thiab npaj rau siab -siab, loj-kab kis tau tus mob kua, thaumASTM B338 titanium condenser rajnpog ob qho tib si seamless thiab welded xaiv tab sis tshwj xeeb tshaj yog optimized rau kev siv hluav taws xob hloov hluav taws xob nrog cov phab ntsa nyias.
Tsis paub meej tias tus qauv twg siv rau koj qhov kev ntsuas siab? Nug peb cov engineers
Kev tsim khoom
ASTM B338 Titanium Tube Manufacturing (Seamless & Welded)
Seamless B338:Tsim los ntawmtxias pilgering los yog kos duab txiaslos ntawm ib tug extruded billet. Cov txheej txheem no kho cov qauv nplej thiab tso cai rau cov phab ntsa nyias nyias (tsawg li 0.020 ").
Vuam B338:Tsim los ntawm lub tiaj tiaj titanium sawb, dov rau hauv lub raj zoo, thiab welded longitudinally sivTIG welding yam tsis muaj hlau. Lub weld seam ces txias ua hauj lwm thiab annealed los kho corrosion kuj.
ASTM B861 Titanium Pipe Manufacturing (Seamless nkaus xwb)
ASTM B861 seamless yeeb nkabyog tsim tshwj xeeb los ntawmkub extrusionua raws li qhov txias txias. Vim tias nws yog tsim los rau kev tswj kom tsis txhob muaj cua sov, cov phab ntsa feem ntau yog tuab dua, thiab txoj kab uas hla ntawm qhov loj dua (txog 12 "los yog ntau dua).
| Txheej txheem Feature | ASTM B 338 Cov | ASTM B 861 |
|---|---|---|
| Seamless Muaj | Yog lawm | Yog (tsuas yog) |
| Welded Muaj | Yog lawm | Tsis muaj |
| Yam tsawg kawg ntawm phab ntsa Thickness | 0.015 "(nyias heev) | Feem ntau thicker (0.065 "+) |
| Max OD Ntau | Mus txog 6 "( seamless) / 24 "(welded) | Mus txog 12 "+ |
| Kev tsim thawj zaug | Txias pilgered / Drawn | Kub extruded + Txias tiav |
Dimensional Tolerances: ASTM B338 Tube vs ASTM B861 Yeeb
ASTM B338 Dimensional Tolerances (Tubing)
Sab nraud txoj kab uas hla (OD):Feem ntau±0.005"rau leej tshav kub exchanger raj ntawv haum.
Phab ntsa Thickness: ±12.5%(tighter li thov).
Ncaj nraim:Yuav tsum tsim nyog rau lub raj - hauv - plhaub sib dhos.
ASTM B 861 Dimensional Tolerances (piping)
Sab nraud txoj kab uas hla (OD):Tolerances yog nyob ntawmNominal Pipe Loj (NPS)thiab feem ntau looser dua tubing (piv txwv li, ± 1/32 "rau me diameters).
Phab ntsa Thickness:Raws liTeem caij (Sch 10, Sch 40, Sch 80), tsis feem pua kam rau ua.
Ncaj nraim:Tsawg qhov tseem ceeb; teev raws li qhov siab tshaj qhov sib txawv ntawm ib chav tsev ntev.
Mechanical Properties
Ob qho qauv npog qib 2 ua lag luam ntshiab titanium, tab sis cov kev xav tau ntawm cov tshuab tsis zoo ib yam. Vim tias ASTM B861 cov kav dej yog tsim los rau kev pabcuam siab, qhov kev xav tau tensile thiab tawm los yog feem ntau me ntsis siab dua los suav rau cov seem tuab.
Kev sib piv ntawm Qib 2 Cov Kev Xav Tau Ntawm Cov Qauv:
| Khoom | ASTM B338 Qib 2 (Tube) | ASTM B861 Qib 2 (Pib) |
|---|---|---|
| Tensile zog (min) | 345 MPa (50 ksi) | 345 MPa (50 ksi) |
| Yield zog (min) | 275 MPa (40 ksi) | 275 MPa (40 ksi) |
| Elongation (min) | 20% | 20% |
| Hydrostatic Test | Yuav tsum tau (ib lub raj) | Yuav tsum tau (ib lub raj) |
| Flattening Test | Yuav tsum tau (rau welded) | Tsis siv tau |
| Flaring Test | Yuav tsum tau (rau seamless) | Tsis siv tau |
Thaum cov lej muaj zog zoo sib xws, covtitanium yeeb nkab txheem(ASTM B861) qhia txog kev tawg siab thiab kev ncaj ncees, qhov ntawdASTM B338 tubinghais txog formability (flaring, dabtsi yog khoov) tso cai rau raj - mus rau - raj ntawv expansion.
Qhov twg siv Txhua Titanium Tube Specification
Thaum twg los qhia ASTM B338 Titanium Tube
Thaum tshav kub kub Exchangers:Tube bundles qhov twg nyias phab ntsa maximize tshav kub.
Condenser:Nto condensers nyob rau hauv cov fais fab nroj tsuag nrog dej txias ntawm ib sab thiab chav rau lwm yam.
Evaporators:Desalination thiab tshuaj evaporator coils.
Bending Applications:Qhov twg lub raj yuav tsum yog U- khoov los yog coiled.
Thaum twg los Qhia ASTM B861 Titanium Pipe
Hloov kab:Siab -kev hloov tshuaj lom neeg los ntawm kev cia rau reactors.
Piping Manifolds:Header kav xa dej mus rau ntau lub tshav kub exchanger raj.
Siab -Hydraulic Pressure:Cov txheej txheem xav tau cov phab ntsa tuab rau tawg ua haujlwm.
Loj Dia:Cov phiaj xwm xav tau qhov ntau thiab tsawg ntawm cov yeeb nkab nominal (NPS) es tsis yog raj OD.
Tus qauv twg yog kev lag luam ntau dua?
Tus nqi tsis tshua muaj qhov tseem ceeb, tab sis nws ib txwm yog qhov tseem ceeb. Los ntawm qhov kev xav ntawm kev yuav khoom, tus nqi sib txawv ntawmASTM B338 welded rajthiabASTM B861 seamless yeeb nkabtuaj yeem ua tau ntau yam.
| Qhov xwm txheej | ASTM B338 (Welded) | ASTM B338 Seamless | ASTM B861 (tsis muaj seamless) |
|---|---|---|---|
| Tus nqi txheeb ze | qis tshaj | Nruab nrab | Siab tshaj |
| Vim li cas? | Txoj kev sib sau ua haujlwm tau zoo | Txias pilgering yog siv zog- | Kub extrusion + xov yog kim |
| Lub Sijhawm Lead | Shortest (2-4 lub lis piam) | Nruab nrab (4-6 lub lis piam) | Ntev tshaj (6-10 lub lis piam) |
| Volume Flexibility | High (cov khoom me me OK) | Nruab nrab | Tsawg dua (loj MOQ) |
Kev Paub Txog Kev Muag Khoom:Yog tias koj daim ntawv thov tso cai rau kev tsim kho welded (tsis yog -corrosive seam raug), ASTM B338 welded tubing muab covtus nqi zoo tshaj. Yog tias koj xav tau seamless rau siab ncaj ncees, sib piv seb ASTM B338 seamless raj ua tau raws li koj xav tau ua ntej dhia mus rau ASTM B861, raws li yav tas los feem ntau nqa tus nqi vim nws txoj kab uas hla loj dua.
Quality Assurance
Peb Cov Qauv Ntsuas Ntsuas rau Tubing (ASTM B338):
Kev Ntsuas Hydrostatic:100% ntawm cov raj yog pressurized rau qhov ntsuas qhov siab, tuav rau yam tsawg kawg nkaus 5 vib nas this, nrog xoom to.
Eddy Current Testing (ECT):Automated tsis yog -kev kuaj kev puas tsuaj ntawm tag nrho cov raj ntev (nto thiab subsurface flaw detection).
Flattening Test:Lub nplhaib qauv yog flattened los xyuas qhov ductility thiab weld kev ncaj ncees (rau welded hlab).
Flaring Test:Ib tug mandrel nthuav lub raj kawg mus rau 1.5x OD kom paub meej tias kev tawg tsis kam.
Dimensional soj ntsuam:OD, ID, phab ntsa thickness, thiab ovality ntsuas nrog laser micrometers.
Peb Qhov Kev Ntsuas Ntxiv rau Piping (ASTM B861):
Kev Ntsuas Ultrasonic (UT):Siv ECT rau cov phab ntsa tuab kom pom cov laminations sab hauv.
Khoov Test:Xyuas kom cov yeeb nkab tuaj yeem tiv taus kev khoov yam tsis muaj kev puas tsuaj.
Charpy Impact Test:Rau qis - cov ntawv siv kub qhov twg qhov kev sib tw toughness yog qhov tseem ceeb.
Thov kom ua tiav daim ntawv qhia matrix rau koj qhov project
Lub Hoobkas muaj peev xwm
Factory Highlights:
| Muaj peev xwm | ASTM B338 Kab | ASTM B861 Kab |
|---|---|---|
| Txoj kev tsim khoom | Cold Pilgering / Sawb Vuam | Kub Extrusion + Txias kos duab |
| Max Txoj kab uas hla | 6 "(seamless) / 24" (welded) | 12" NPE |
| Phab ntsa Thickness Range | 0.015" – 0.250" | 0.065" – 1.000" |
| Kev kho cua sov | Nqus Annealing | Nqus Annealing + Stress Relief |
| Lub Hlis Muaj Peev Xwm | 400 tons | 150 tons |
Ntim thiab Shipping
Standard Ntim Module:
Tus kheej lub tsho:Txhua lub raj xa mus rau hauv lub tes tsho yas tiv thaiv kom tsis txhob khawb.
Xaus Cap Sealing:Ob qhov kawg yog capped nrog hnyav- lub luag haujlwm yas plugs los thaiv cov dej noo thiab cov khib nyiab (tseem ceeb rau kev huv huv -cov tubing).
Txheej txheej sib cais:Tubes yog bundled nyob rau hauv cov khaubncaws sab nraud povtseg nrog plywood dividers los yog ua npuas ncauj interleaving los tiv thaiv kev sib txhuam galling.
Steel-Framed Crates:Rau cov kav dej hnyav lossis ntev, peb siv cov hlau txuas ntxiv- cov ntoo crates nrog cov nqa nqa.
Desiccant Bags:Muab tso rau hauv cov pob khoom kom nqus cov condensation rau hauv hiav txwv- cov khoom xa tuaj.
FAQ
Q1: Kuv puas tuaj yeem siv ASTM B338 titanium raj rau siab - cov kab hluav taws xob siab?
A:Yog lawm, tab sis tsuas yog yog tias qhov ntsuas siab sib npaug ntawm koj lub cev. ASTM B338 raj feem ntau yog nyias dua -walled. Rau cov kab hluav taws xob siab tshaj 10 MPa, ASTM B861 seamless yeeb nkab feem ntau pom zoo vim nws cov phab ntsa tuab thiab tawg siab.
Q2: Puas yog ASTM B861 tso cai rau welded raj?
A:Tsis yog. ASTM B861 qhia meej meejseamlesstitanium yeeb nkab nkaus xwb. Yog tias koj xav tau cov yeeb nkab welded, koj yuav tsum xa mus rauASTM B 862(Welded Titanium yeeb nkab) hloov.
Q3: Tus qauv twg kim dua: ASTM B338 seamless lossis ASTM B861?
A:ASTM B861 yuav luag txhua zaus kim dua rau qhov sib piv txoj kab uas hla vim nws yuav tsum tau kub extrusion thiab loj dua billet. Txawm li cas los xij, rau cov kab me me (hauv qab 2 "), ASTM B338 seamless tuaj yeem raug nqi sib tw.
Q4: Cov khoom siv qib 2 puas zoo ib yam hauv ob qho qauv?
A:Chemically, yog. Qib 2 muaj qhov txwv tib yam hauv ob qho tib si. Mechanically, cov kev xeem yuav txawv (xws li, flattening xeem siv rau B338 raj tab sis tsis B861 kav), tab sis lub zog qhov tseem ceeb yog tib yam.
Q5: Kuv puas tuaj yeem khoov ASTM B861 yeeb nkab rau hauv U-zoo li B338 tubing?
A:Tsis pom zoo. ASTM B861 cov kav dej muaj cov phab ntsa tuab dua thiab cov kab uas loj dua, ua kom txias khoov nyuaj thiab muaj peev xwm ua rau wrinkling. Siv ASTM B338 tubing rau U- khoov daim ntawv thov.
Q6: Dab tsi yog qhov kev tshuaj xyuas tseem ceeb ntawm ob tus qauv?
A:ASTM B338 xav tauflattening thiab flaring xeemrau kev txheeb xyuas ductility. ASTM B861 xav tauHydrostatic thiab ultrasonic kuajtab sis tsis xav kom flattening, raws li cov kav dej feem ntau tsis nthuav dav rau hauv cov ntawv raj.
Q7: Kuv puas tuaj yeem hloov ASTM B338 seamless raj rau ASTM B861 yeeb nkab thaum muaj xwm ceev?
A:Tsuas yog cov phab ntsa thickness thiab siab ntsuas qhov sib npaug. Kev hloov pauv tsis pom zoo yog tsis muaj tag nrho engineering re- xam, raws li cov sij hawm tubing tsis ncaj qha mus rau cov kav dej.
Q8: Tus qauv twg muaj lub sijhawm ua haujlwm sai?
A:ASTM B338 welded raj muaj lub sijhawm ua haujlwm ceev tshaj plaws (2-3 lub lis piam). ASTM B338 seamless yog 4-6 lub lis piam. ASTM B861 seamless yeeb nkab yog qhov ntev tshaj plaws, feem ntau 8-12 lub lis piam vim cov txheej txheem extrusion.
