ASTM A249 TP304L Stainless Hlau Welded Thaum tshav kub kub Exchanger Tube
Tso lus
Vim li cas TP304L welded heat exchanger tubes feem ntau muaj kev nthuav dav tawg, weld corrosion, lossis txawm tias xau thaum lub sijhawm teeb tsa lossis kev ua haujlwm ntxov hauv ntau qhov kev sib pauv cua sov? Qhov tseem ceeb nyob rau hauv qhov tsis sib xws weld zoo, cov khoom siv tsis ruaj khov, thiab qhov tsis txaus ntawm qhov raug-tag nrho cov uas cuam tshuam ncaj qha rau lub sijhawm ntev - kev ntseeg tau.
ASTM A249 TP304L round raj yog tsim los siv siab -cov txheej txheem vuam tsis siv neeg, ua ke nrog 100% online Eddy Current Testing (ECT). Tsis tas li ntawd, sab hauv weld seam yog zoo leveled kom tshem tawm cov weld reinforcement, kom tsis muaj qhov tsis xws luag xws li tsis muaj fusion, porosity, los yog tawg. Qhov no tso cai rau thaj tsam weld kom ua tiav qhov kev ua tau zoo ze ntawm lub hauv paus hlau, txo qhov kev pheej hmoo ntawm corrosion thiab to.
Peb ASTM A249 TP304L Stainless Hlau Welded Thaum tshav kub kub Exchanger Tube yog tsim tshwj xeeb rau siab -kev ua haujlwm kub exchanger tshuab. Tag nrho cov raj tau txais kev daws teeb meem, feem ntau siab dua 1040℃tom qab txias txias, ua kom lub cev tsis sib xws thiab kev ntxhov siab tag nrho. Qhov no txhim kho corrosion kuj thiab ua stability. Piv nrog rau cov pa welded raj, peb TP304L cov cua kub exchanger tubes tuaj yeem txo qis kev teeb tsa tsis zoo los ntawm ntau dua 25% thiab txuas ntxiv tag nrho cov kev pab cuam lub neej los ntawm ntau dua 20%, thaum txo qis txij nkawm thiab sijhawm poob.
Nyob rau hauv cov nqe lus ntawm kev nthuav dav kev ua tau zoo, peb tswj hwm nruj hardness tswj, ua kom lub hardness tsawg dua los yog sib npaug rau HRB 90. Qhov no ua kom muaj peev xwm ua tau zoo heev thiab muaj peev xwm flaring, tiv thaiv micro- tawg lossis tawg thaum lub raj xa mus rau hauv cov ntawv raj. Hais txog qhov tseeb qhov tseeb thiab qhov ncaj, peb nruj me ntsis ua raws li ASTM A249 tus qauv, tswj cov txheej txheem sab nraud nyob rau hauv ± 0.3% thiab ua kom ntseeg tau zoo heev. Qhov no guarantees du tube insertion, tsis txhob txhaws thaum lub sij hawm installation, thiab txhim kho tag nrho cov kev sib dhos efficiency.
ASTM A249 TP304L Stainless Hlau Welded Tube Specification
| Specifications | ASTM A249 / SA 249 / ASTM A249 / SA 249 / ASTM A249 / ASTM A249 / ASTM A249 / SA 249 / ASTM A249 / SA 249 / ASTM A249 / ASTM A249 / ASTM A249 / ASTM A249 / SA249 / ASTM A249 / ASTM A249 / SA249 / ASTM A249 / SA249 / ASTM A249 / ASTM A249 / SA 249 / ASTM A249 / ASTM A249 / SA 249 / ASTM A249 / ASTM A249 / SA249 / ASTM A249 / SA 249 / ASTM A249 / SA 249 / ASTM A249 / SA249) |
| Loj | 1/8 "NB-30" NB |
| Welded Loj | 1/2" NB - 16" NB |
| Teem caij | BWG 10-25 SCH 20 SCH 30 SCH 40 STD SCH 80 SCH 60 SCH 80 SCH 120 SCH 140 AWV 160 |
| Hom | ASTM A249 TP304L SS Welded Tubes |
| Tshwj xeeb hauv | Loj Diameter Loj |
| Ntev | Ib qho Random, Ob Chav Random & Txiav Ntev. |
| Daim ntawv | Round, Square, Rectangular, Hydraulic thiab lwm yam |
| Xaus | Plain End, Beveled kawg, Treaded |
ASTM A249 TP304L Stainless Hlau Welded Tubes Cov Khoom Siv Tshuaj
| Qib | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304L | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.030 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | 12.0 | 0.10 | ||
ASTM A249 TP304L Stainless Hlau Welded Tubes Mechanical Properties
| A 249 | TENSILE Stress (MPA) MAX | YIELD STRESS (MPA) MAX | ELONGATION(%) | HARDNESS MIN |
|---|---|---|---|---|
| TIAB SA 304L | 485 | 170 | 35 | 90 |
| 1.4307 | 480-680 | 180 | 40 | 90 |
ASTM A249 TP304L Stainless Hlau Welded Tubes sib npaug qib
| Qib | Unified Numbering System | Laus British | Euronorm | Swedish SS | Japanese Industrial Standards | GOST | ||
| British Standards | European Standards | Tsis muaj | Lub npe | |||||
| 304L | S30403 | 304S31 | 58E | 1.4306 / 1.4307 | X5CrNi18-10 | 2332 | SUS 304 L | 03Х18Н11 |
Qhov ntau thiab tsawg ntawm ASTM A249 TP 304L Boiler Tube
| Dimensions hauv Mm | Nyhav ib Kg | Phab ntsa Thickness hauv Mm | Nyhav ib Kg | Dimensions hauv Mm | Phab ntsa Thickness hauv Mm | |
|---|---|---|---|---|---|---|
| 15 * 15 | 2.45 | 1.20 | 0.53 | 40*40 | 2.00 | |
| 12.7 * 12.7 | 1.49 | 1.20 | 0.44 | 40*40 | 1.20 | |
| 15 * 15 | 3.75 | 1.50 | 0.65 | 40*40 | 3.00 | |
| 12.7 * 12.7 | 1.85 | 1.50 | 0.55 | 40*40 | 1.50 | |
| 20 * 20 | 3.08 | 1.50 | 0.88 | 50*50 | 2.00 | |
| 20 * 20 | 2.32 | 1.20 | 0.71 | 50*50 | 1.50 | |
| 25 * 25 | 3.71 | 1.20 | 0.92 | 60*60 | 2.00 | |
| 20 * 20 | 4.65 | 2.00 | 1.19 | 50*50 | 3.00 | |
| 25 * 25 | 5.49 | 1.50 | 1.14 | 60*60 | 3.00 | |
| 25 * 25 | 4.98 | 3.00 | 2.20 | 80*80 | 2.00 | |
| 25 * 25 | 6.53 | 2.00 | 1.49 | 70*70 | 3.00 | |
| 30 * 30 | 6.40 | 1.50 | 1.37 | 100 * 100 | 2.00 | |
| 30 * 30 | 7.53 | 1.20 | 1.10 | 80*80 | 3.00 | |
| 30 * 30 | 9.53 | 2.00 | 1.84 | 100 * 100 | 3.00 | |
| 30 * 30 | 3.00 | 2.72 | ||||
ASTM A249 TP 304L Boiler Tube Diameter kam rau ua
| NPS | OD Tolerance | |||
|---|---|---|---|---|
| + | – | |||
| mm | nti | mm | nti | |
| > 8~18 | 2.4 | 3/32(0.093) | 0.8 | 1/32(0.031) |
| > 1 1 /2~4 | 0.8 | 1/32(0.031) | 0.8 | 1/32(0.031) |
| > 4~8 | 1.6 | 1/16(0.062) | 0.8 | 1/32(0.031) |
| 1/8~1 1 /2 | 0.4 | 1/64(0.015) | 0.8 | 1/32(0.031) |
| > 18~26 | 3.2 | 1/8(0.125) | 0.8 | 1/32(0.031) |
| > 26~34 | 4.0 | 5/32(0.156) | 0.8 | 1/32(0.031) |
| > 34~48 | 4.8 | 3/16(0.187) | 0.8 | 1/32(0.031) |
HSN Code Ntawm ASTM A249 Hom 304L Welded Stainless Hlau Tube
| Khoom | HSN Code |
|---|---|
| ASTM A249 Hom 304L Tube | 7304319000 |
Daim ntawv thov ntawm ASTM A249 Hom 304L Welded Stainless Hlau Tube
Automotive
Kev lag luam roj thiab roj
Cov cuab yeej kho mob
Thaum tshav kub kub Exchangers
Boilers
Ornamental
Kev lag luam zaub mov
Cov nroj tsuag muaj zog
Tsis yog -Kev kuaj kev puas tsuaj
Thaum tshav kub kub exchangers feem ntau ua haujlwm nyob rau hauv siab; yog li ntawd, ib qho kev xau tsis tuaj yeem lees txais.
100% Eddy Kev Ntsuas Tam Sim No: Qhov no yog qhov yuav tsum tau ua raws li Specification A249, siv los txheeb xyuas los ntawm - phab ntsa tsis xws luag hauv ob qho tib si weld seams thiab phab ntsa raj.
Kev Ntsuas Hydrostatic: Yuav tsum tau kuaj 100% lub cev hydrostatic los xyuas kom meej tias tsis muaj qhov xau tshwm sim nyob rau hauv siab - cov xwm txheej siab.
Flaring thiab Flange Tests: xyuas kom meej tias cov tubing muaj cov yas txaus kom dhau los ua deformation.
Ntim thiab Shipping
Plastic Caps: Ob qho kawg ntawm txhua lub raj yuav tsum tau muab nrog lub hau yas ruaj ntseg.
Muaj nuj nqi: Tiv thaiv kev puas tsuaj thiab kev sib kis.
Lub Hnab Yas Txhua Tus: Nws raug nquahu kom muab txhua lub raj ntim rau hauv ib lub hnab yas zaj duab xis lossis npuas qhwv.
Hexagonal Bundles: Rau me me mus rau nruab nrab - txoj kab uas hla, hexagonal bundling feem ntau yog ua haujlwm los xyuas kom muaj kev ruaj ntseg.
FAQ
Q: Qhov txawv ntawm ASTM A249 TP304L thiab TP304 yog dab tsi? Vim li cas 304L feem ntau siv hauv cov khoom siv hluav taws xob?
A:Qhov sib txawv tseem ceeb yog cov ntsiab lus carbon. TP304L muaj cov ntsiab lus siab tshaj plaws ntawm 0.030%, thaum TP304 tso cai rau 0.08%. Cov ntsiab lus qis dua hauv 304L (Low Carbon) muaj txiaj ntsig zoo tiv thaiv kev cuam tshuam ntawm intergranular tom qab vuam, ua kom lub sijhawm ntev -kev nyab xeeb thiab kev ntseeg siab ntawm cov chaw welded hauv cov ntawv siv hluav taws xob.
Q: Dab tsi yog qhov yuav tsum tau ua ntawm ASTM A249 txog kev kho weld seam?
A:ASTM A249 xav kom cov vuam seam yuav tsum tau ua haujlwm txias tom qab vuam thiab ua ntej kev kho cua sov kawg. Cov txheej txheem no txhim kho microstructure ntawm thaj chaw weld, kom ntseeg tau tias cov khoom siv zoo dua qub thiab kev tiv thaiv corrosion, ua rau qhov kev ua tau zoo ntawm cov vuam los ze zog rau cov khoom siv hauv paus.
Q: Vim li cas kev tswj qhov nyuaj yog qhov tseem ceeb rau A249 TP304L cov cua kub exchanger raj?
A:Thaum tshav kub kub exchanger raj feem ntau tsau rau cov ntawv raj los ntawm cov raj expanding. Yog hais tias lub hardness siab dhau lawm (feem ntau yog vim tsis txaus annealing), cov khoom tsis muaj ductility, uas tuaj yeem ua rau:
Micro- tawg ntawm thaj chaw nthuav dav
Lub caij nplooj ntoos hlav ntau dhau, tiv thaiv kev sib khi nruj ntawm lub raj thiab lub raj xa ntawv, ua rau cov dej xau
Q: Yuav ua li cas xaiv ntawm ASTM A249 (welded raj) thiab ASTM A213 (seamless raj) rau kev siv tshav kub exchanger?
A:
Phab ntsa thickness uniformity:A249 welded raj yog tsim los ntawm txias- dov strips, muab cov phab ntsa tuab tuab heev thiab ua tau zoo dua cov cua sov ua haujlwm.
Seamless raj (A213):Cov no yuav muaj me ntsis siab dua phab ntsa thickness eccentricity piv rau welded hlab.
