ASTM A671 Cov Lus Qhia Tshwj Xeeb yog steel yeeb nkab ua los ntawm lub siab lub nkoj zoo phaj,Hluav taws xob-Fusion-Welded (EFW)rau high-pressure ib puag ncig ntawm ambient thiab qis kub.
Nws yog tshwj xeeb tshaj yog haum rau daim ntaub ntawv uas yuav tsum tau high-pressure stability thiab tshwj xeeb uas tsis muaj-temperature zog.
Navigation Khawm
ASTM A671 Loj Ntau Yam
ASTM A671 Kev Ntsuas
Qib Classification
Classification
Cov khoom siv raw
Vuam Ntsiab Lus
Kev kho cua sov rau cov chav sib txawv
ASTM A671 Kev sim ua haujlwm
ASTM A671 Kev Ntsuas
Tso cai sib txawv hauv qhov loj
Daim ntawv thov rau ASTM A671 Steel Tubing
Peb cov khoom muaj feem xyuam
ASTM A671 Loj Ntau Yam
Pom zoo ntau yam: steel kav nrog DN ≥ 400 mm [16 in] thiab WT ≥ 6 mm [1/4].
Nws kuj tseem siv tau rau lwm qhov ntau thiab tsawg ntawm cov yeeb nkab, yog tias nws ua tau raws li tag nrho lwm cov kev cai ntawm qhov kev qhia no.
ASTM A671 Kev Ntsuas
Txhawm rau kom nkag siab zoo dua ASTM A671, cia peb nkag siab nws cov ntsiab lus kos npe.Qhov no yuav pab kom paub meej txog qhov kev thov thiab cov yam ntxwv ntawm tus qauv no.
Piv txwv ntawm Spray Marking:
BOTOP EFW ASTM A671 CC60 -22 16" × SCH80 HEAT NO.4589716
BOTOP: Lub npe ntawm cov chaw tsim khoom.
EFW: steel tube manufacturing txheej txheem.
ASTM A671 Cov Lus Qhia Tshwj Xeeb: Executive Standard for Steel Tubing.
TSW 60-22: Cov ntawv luv rau qib: cc60 thiab chav kawm 22.
16" x SCH80: Txoj kab uas hla thiab phab ntsa Thickness.
HEAT NO.4589716 ib: Kub no.rau zus tau tej cov steel raj.
Qhov no yog hom qauv ntawm ASTM A671 spray labeling.
Nws tsis yog qhov nyuaj rau nrhiav ASTM A671 hauv qib thiab chav kawm ob chav kawm, ces ob qhov kev faib tawm no sawv cev rau lub ntsiab lus.
Qib Classification
Muab faib raws li hom phaj siv los tsim cov raj steel.
Cov qib sib txawv sawv cev cov tshuaj sib txawv thiab cov khoom siv kho tshuab rau qhov sib txawv siab thiab kub.
Piv txwv li, qee cov qib yog cov pa roj carbon monoxide, thaum lwm tus yog cov hlau nrog ntxiv alloying ntsiab lus, xws li cov hlau nickel.
| Qib Qib | Hom Hlau | ASTM Specification | |
| Tsis muaj. | Qib / chav kawm / hom | ||
| CA 55 | carbon dawb | A285/A285M | Gr C |
| SIB 60 | carbon dawb, tua | A515/A515M | gr 60 |
| SIB 65 | carbon dawb, tua | A515/A515M | gr65 ua |
| SIB 70 | carbon dawb, tua | A515/A515M | gr 70 |
| TXC 60 | carbon dawb, tua, nplua nplej | A516/A516M | gr 60 |
| TXC 65 | carbon dawb, tua, nplua nplej | A516/A516M | gr65 ua |
| TSI 70 | carbon dawb, tua, nplua nplej | A516/A516M | gr 70 |
| cd70 ib | manganese-silicon, normalized | A537/A537M | Cl 1 |
| cd80 ua | manganese-silicon, quenched thiab tempered | A537/A537M | Cl 2 |
| TIAB SA 65 | nickel hlau | A203/A203M | Gr A |
| SIB 70 | nickel hlau | A203/A203M | Gr B |
| TIAB SA 65 | nickel hlau | A203/A203M | Gr D |
| TSI 70 | nickel hlau | A203/A203M | Gr E |
| CWJ 100 | 9% npib tsib xee | A353/A353M | |
| TSI 115 | 9% npib tsib xee | A553/A553M | Hom 1 |
| SIB 115 | alloy steel, quenched thiab tempered | A517/A517M | Gr A |
| SIB 115 | alloy steel, quenched thiab tempered | A517/A517M | Gr B |
| SIB 115 | alloy steel, quenched thiab tempered | A517/A517M | Gr E |
| SIB 115 | alloy steel, quenched thiab tempered | A517/A517M | Gr F |
| HWV 115 | alloy steel, quenched thiab tempered | A517/A517M | Gr H |
| PAB 115 | alloy steel, quenched thiab tempered | A517/A517M | Gr P |
| CK 75 | carbon-manganese-silicon | A299/A299M | Gr A |
| PAB 85 | alloy steel, hnub nyoog hardening, quenched thiab nag lossis daus kub kho | A736/A736M | Gr A, Chav Kawm 3 |
Classification
Cov raj raug cais raws li hom kev kho cua sov uas lawv tau txais thaum lub sijhawm tsim khoom thiab seb lawv puas tau kuaj xyuas hluav taws xob thiab ntsuas siab.
Cov pawg sib txawv qhia txog cov kev kho cua sov sib txawv rau cov raj.
Piv txwv xws li normalizing, txo kev ntxhov siab, quenching, thiab tempered.
| Chav kawm | Kev kho cua sov ntawm cov yeeb nkab | Xov tooj cua, saib daim ntawv: | Kev ntsuas siab, saib daim ntawv: |
| 10 | tsis muaj | tsis muaj | tsis muaj |
| 11 | tsis muaj | 9 | tsis muaj |
| 12 | tsis muaj | 9 | 8.3 |
| 13 | tsis muaj | tsis muaj | 8.3 |
| 20 | kev ntxhov siab, saib 5.3.1 | tsis muaj | tsis muaj |
| 21 | kev ntxhov siab, saib 5.3.1 | 9 | tsis muaj |
| 22 | kev ntxhov siab, saib 5.3.1 | 9 | 8.3 |
| 23 | kev ntxhov siab, saib 5.3.1 | tsis muaj | 8.3 |
| 30 | normalized, saib 5.3.2 | tsis muaj | tsis muaj |
| 31 | normalized, saib 5.3.2 | 9 | tsis muaj |
| 32 | normalized, saib 5.3.2 | 9 | 8.3 |
| 33 | normalized, saib 5.3.2 | tsis muaj | 8.3 |
| 40 | normalized thiab tempered, saib 5.3.3 | tsis muaj | tsis muaj |
| 41 | normalized thiab tempered, saib 5.3.3 | 9 | tsis muaj |
| 42 | normalized thiab tempered, saib 5.3.3 | 9 | 8.3 |
| 43 | normalized thiab tempered, saib 5.3.3 | tsis muaj | 8.3 |
| 50 | quenched thiab tempered, saib 5.3.4 | tsis muaj | tsis muaj |
| 51 | quenched thiab tempered, saib 5.3.4 | 9 | tsis muaj |
| 52 | quenched thiab tempered, saib 5.3.4 | 9 | 8.3 |
| 53 | quenched thiab tempered, saib 5.3.4 | tsis muaj | 8.3 |
| 70 | quenched thiab nag lossis daus kub kho | tsis muaj | tsis muaj |
| 71 | quenched thiab nag lossis daus kub kho | 9 | tsis muaj |
| 72 | quenched thiab nag lossis daus kub kho | 9 | 8.3 |
| 73 | quenched thiab nag lossis daus kub kho | tsis muaj | 8.3 |
Qhov kub ntawm kev siv yuav tsum tau sau tseg thaum xaiv cov khoom.Kev siv tau tuaj yeem ua rau qhov tshwj xeeb ASTM A20 / A20M.
Cov khoom siv raw
Cov phaj siab zoo rau cov hlab ntsha siab, cov ntsiab lus ntawm hom, thiab cov qauv ua tiav tuaj yeem pom nyob rau hauv lub rooj hauvQib Classificationsaum toj no.
Vuam Ntsiab Lus
Vuam: Seams yuav tsum tau muab ob npaug rau-welded, tag nrho-ntev welded.
Vuam yuav tsum tau ua raws li cov txheej txheem teev tseg hauv Tshooj IX ntawm ASME Boiler thiab Pressure Vessel Code.
Cov welds yuav tsum tau ua manually lossis txiav los ntawm cov txheej txheem hluav taws xob uas cuam tshuam nrog kev tso cov hlau muab tub lim.
Kev kho cua sov rau cov chav sib txawv
Txhua chav kawm uas tsis yog 10, 11, 12, thiab 13 yuav tsum tau kho cua sov hauv lub cub tawg tswj kom ± 25 ° F [± 15 ° C].
Qib 20, 21, 22, thiab 23
Yuav tsum tau ua kom sov zoo ib yam nyob rau hauv qhov kev kho cua sov tom qab vuam qhov kub thiab txias uas tau teev tseg hauv Table 2 rau qhov tsawg kawg nkaus ntawm 1 h / hauv.[0.4 h / cm] ntawm thickness los yog rau 1 h, qhov twg ntau dua.
Chav kawm 30, 31, 32, thiab 33
Yuav tsum tau ua kom zoo sib xws rau qhov kub thiab txias hauv qhov ntsuas austenitizing thiab tsis pub tshaj qhov siab tshaj plaws normalizing kub qhia hauv Table 2 thiab tom qab txias hauv huab cua ntawm chav tsev kub.
Chav Kawm 40, 41, 42, thiab 43
Cov yeeb nkab yuav tsum normalized.
Cov yeeb nkab yuav tsum tau rov ua kom sov rau qhov kub thiab txias uas tau teev tseg hauv Table 2 raws li qhov tsawg kawg nkaus thiab tuav ntawm qhov kub ntawm qhov tsawg kawg nkaus ntawm 0.5 h / cm. txias.
Chav kawm 50, 51, 52, thiab 53
Cov yeeb nkab yuav tsum tau sib npaug rau qhov kub thiab txias hauv qhov ntsuas austenitizing thiab tsis pub tshaj qhov siab tshaj plaws quenching kub qhia hauv Table 2.
Tom qab ntawd, quench nyob rau hauv dej los yog roj.Tom qab quenching, cov yeeb nkab yuav tsum reheated rau qhov tsawg kawg nkaus tempering kub qhia nyob rau hauv Table 2 thiab tuav ntawm qhov ntawd.
kub rau qhov tsawg kawg nkaus ntawm 0.5 h / nti [0.2 h / cm] ntawm tuab los yog 0.5 h, qhov twg yog qhov ntau dua, thiab cua txias.
Chav Kawm 70, 71, 72, thiab 73
Cov kav dej yuav tsumua tib zoo rhuab mus rau qhov kub thiab txias nyob rau hauv lub austenitizing ntau yam, tsis pub tshaj qhov siab tshaj plaws quenching kub qhia nyob rau hauv Table 2, thiab ces quenched nyob rau hauv dej los yog roj.
Tom qab quenching cov yeeb nkab yuav tsum tau reheated rau hauv nag lossis daus kub kho ntau yam qhia nyob rau hauv Table 2 rau ib lub sij hawm los txiav txim los ntawm cov chaw tsim tshuaj paus.
ASTM A671 Kev sim ua haujlwm
Tshuaj muaj pes tsawg leeg
Raws li cov kev cai sib thooj ntawm kev siv cov qauv ntawm cov khoom siv raw, tshuaj lom neeg muaj pes tsawg leeg tsom xam, cov txiaj ntsig ntawm kev sim ua kom tau raws li tus qauv yuav tsum tau ua.
Kev Ntsuas Siab
Tag nrho cov welded kav uas tsim los rau qhov kev qhia tshwj xeeb no yuav tsum muaj kev sib tw hla-weld tensile tom qab kev kho cua sov zaum kawg, thiab cov txiaj ntsig yuav tsum ua raws li cov khoom siv hauv paus rau lub zog tensile kawg ntawm cov khoom siv phaj.
Tsis tas li ntawd, Qib CD XX thiab CJ XXX, thaum cov no yog ntawm Chav Kawm 3x, 4x, lossis 5x, thiab Qib CP ntawm 6x thiab 7x yuav tsum muaj qhov kev sib hloov ntawm lub hauv paus hlau tensile xeem ua rau cov qauv txiav los ntawm cov yeeb nkab tiav.Cov txiaj ntsig ntawm cov kev ntsuam xyuas no yuav tsum ua kom tau raws li qhov yuav tsum tau ua ntawm qhov ntsuas qhov ntsuas qhov tsawg kawg nkaus ntawm cov phaj specification.
Transverse Guided Weld Khoov Test
Kev kuaj khoov yuav tsum tau txais yog tias tsis muaj qhov tawg lossis lwm yam tsis xws luag dhau1/8nyob rau hauv. [3 mm] nyob rau hauv ib qho kev taw qhia muaj nyob rau hauv lub weld hlau los yog nruab nrab ntawm lub weld thiab lub hauv paus hlau tom qab khoov.
Cov kab nrib pleb uas tshwm sim los ntawm cov npoo ntawm cov qauv thaum kuaj, thiab qhov ntawd tsawg dua1/4nyob rau hauv. [6 mm] ntsuas nyob rau hauv ib qho kev taw qhia yuav tsum tsis txhob muab xam.
Kev ntsuas siab
Hoob X2 thiab X3 yeeb nkab yuav tsum raug kuaj raws li Specification A530/A530M, Hydrostatic Test Requirements.
Radiographic Examination
Tag nrho ntev ntawm txhua qhov vuam ntawm Chav Kawm X1 thiab X2 yuav tsum tau kuaj xyuas hluav taws xob raws li thiab ua tau raws li qhov yuav tsum tau ua ntawm ASME Boiler thiab Pressure Vessel Code, Tshooj VIII, Nqe Lus UW-51.
Kev kuaj radiographic tuaj yeem ua ua ntej kev kho cua sov.
ASTM A671 Kev Ntsuas
Cov yeeb nkab tiav yuav tsum tsis muaj qhov raug mob thiab yuav tsum muaj cov neeg ua haujlwm tiav.
Tso cai sib txawv hauv qhov loj
| Kev ua kis las | Tolerance tus nqi | Nco tseg |
| Sab nraud txoj kab uas hla | ± 0.5% | Raws li qhov ntsuas qhov ntsuas |
| Out-of-Roundness | 1%. | Qhov sib txawv ntawm qhov loj thiab me me sab nraud diameters |
| Kev sib tw | 1/8 nyob rau hauv [3 mm] | Siv 10 ft [3 m] ncaj ntug muab tso kom ob qhov kawg nyob rau hauv kev sib cuag nrog cov yeeb nkab |
| Thickness | 0.01 nyob rau hauv [0.3 mm] | Qhov tsawg kawg nkaus phab ntsa thickness tsawg tshaj li qhov teev nominal thickness |
| Ntev | 0-0.5 hli [0 - + 13 hli] | unmachined xaus |
Daim ntawv thov rau ASTM A671 Steel Tubing
Kev lag luam hluav taws xob
Siv los thauj cov kua dej cryogenic hauv cov nroj tsuag kho cov pa roj, cov chaw refineries, thiab cov chaw ua tshuaj.
Industrial tub yees Systems
Rau siv nyob rau hauv lub cryogenic feem ntawm tub yees thiab cua txias tshuab kom ntseeg tau tias system stability thiab kev nyab xeeb.
Cov khoom siv
Rau cov chaw cia khoom thiab tsheb thauj mus los rau cov roj liquefied.
Lub tsev thiab kev tsim kho
Siv rau cov phiaj xwm kev tsim kho vaj tse ntawm qhov kub thiab txias lossis huab cua ib puag ncig, xws li kev tsim kho kom txias.
Peb yog ib qho ntawm cov ua welded carbon steel yeeb nkab thiab seamless steel yeeb nkab manufacturers thiab cov neeg muag khoom los ntawm Tuam Tshoj, nrog rau ntau yam zoo steel yeeb nkab hauv Tshuag, peb tau cog lus los muab koj ntau yam kev daws teeb meem ntawm cov yeeb nkab steel.Xav paub ntau ntxiv txog cov khoom lag luam, thov koj xav tiv tauj peb, peb tos ntsoov yuav pab koj nrhiav cov kev xaiv zoo tshaj plaws steel yeeb nkab rau koj cov kev xav tau!
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Lub sij hawm xa tuaj: Plaub Hlis-19-2024