ASTM A519cov kav dej yuav tsum tau tsim los ntawm cov txheej txheem seamless thiab yuav tsum tau kub-tiav lossis txias-tiav raws li tau teev tseg.
Rau cov raj puag ncig uas muaj sab nraud txoj kab uas hla tsis tshaj 12 3/4 nti (325 hli).
Cov yeeb nkab hlau kuj tseem tuaj yeem tsim ua cov duab plaub fab, duab plaub fab, lossis lwm yam duab raws li qhov xav tau.
ASTM A519 tuaj yeem muab faib ua pawg raws li cov khoom siv hlau:Cov Hlau Carbonthiab Alloy Steel.
Cov hlau carbonyog muab faib uaCov pa roj carbon tsawg MT(Cov Kav Dej Kho Tshuab),Cov Hlau Carbon SiabthiabDesulfurized los yog Rephosphorized, los yog ob qho tib siCov Hlau Carbon, kom haum rau ntau yam kev xav tau kev lag luam thiab cov xwm txheej ntawm daim ntawv thov.
Thaum tsis muaj qib teev tseg, cov chaw tsim khoom muaj kev xaiv los muabMT1015 los yog MTX1020cov qib.
Sab nraud txoj kab uas hla: 13.7 - 325 hli;
Phab ntsa tuab: 2-100 hli.
Cov hlau yuav ua tau los ntawm txhua txoj kev.
Cov hlau tuaj yeem raug pov rau hauv cov ingots lossis tej zaum yuav raug cam khwb cia.
Cov raj yuav tsum tau ua los ntawm ib tugcov txheej txheem tsis muaj teeb meemthiab yuav tsum yog kub-ua tiav lossis txias-ua tiav, raws li tau teev tseg.
Cov kav hlau tsis muaj seamless yog cov kav uas tsis muaj cov seams welded thoob plaws.
Cov raj xa dej txiasraug pom zoo rau cov kev xav tau siab ntawm qhov tseeb ntawm qhov ntev thiab qhov zoo ntawm qhov chaw.
Qhov teeb meem tseem ceeb yog kev siv nyiaj tsim nyog thiab cov khoom siv ruaj khov,cov yeeb nkab hlau kub tiav lawmtej zaum yuav yog qhov kev xaiv zoo dua.
Tom ntej no yog cov txheej txheem tsim cov yeeb nkab hlau kub-kuav los ntawm seamless.
Tus neeg tsim khoom hlau yuav tsum tshuaj xyuas qhov kub ntawm txhua tus hlau kom txiav txim siab feem pua ntawm cov ntsiab lus tshwj xeeb.
Rooj 1 Cov Kev Xav Tau Tshuaj ntawm Cov Hlau Uas Muaj Cov Pa roj Carbon Tsawg
Cov hlau tsis hnyav yog cov hlau uas muaj cov pa roj carbon feem ntau tsis pub tshaj 0.25%. Vim nws cov pa roj carbon tsawg dua, cov hlau no muaj kev ywj pheej zoo dua thiab yooj ywm dua thiab tsis tawv thiab muaj zog dua piv rau cov hlau uas muaj cov pa roj carbon ntau.
Rooj 2 Cov Kev Xav Tau Tshuaj ntawm Lwm Cov Hlau Carbon
Cov hlau carbon nruab nrabMuaj cov pa roj carbon ntawm 0.25% thiab 0.60%, lawv muab qhov nyuaj thiab lub zog siab dua thiab xav tau kev kho cua sov kom txhim kho cov khoom.
Cov hlau carbon siabMuaj cov pa roj carbon ntawm 0.60% thiab 1.0% lossis ntau dua, thiab muab qhov nyuaj thiab lub zog siab heev, tab sis qhov tawv qis dua.
Rooj 3 Cov Kev Xav Tau Tshuaj rau Cov Hlau Alloy
Rooj 4 Cov Kev Xav Tau Tshuaj ntawm Resulfurized lossis Rephosphorized, lossis Ob qho tib si, Carbon Steels
ROOJ 5 Kev Tshawb Fawb Txog Khoom Siv Tau Zoo Dua Los Yog Qis Dua Qhov Ntau Yam Los Yog Kev Txwv Uas Tau Teem Tseg
Tus neeg tsim khoom tsuas yog yuav tsum tau hais kom tshuaj xyuas cov khoom yog tias qhov kev txiav txim xav tau.
ASTM A519 npog cov khoom sim hauv qab no:
Kev Ntsuas Qhov Nyuaj; Kev Ntsuas Qhov Nruj; Kev Ntsuas Tsis Ua Rau Puas Tsuaj; Kev Ntsuas Kub; Kev Huv Si thiab Kev Ua Kom Ruaj Khov ntawm Hlau.
| Kev Xaiv Qib | Hom Yeeb Nkab | Mob | Lub Zog Zoo Tshaj Plaws | Lub Zog Tawm | Kev ntev hauv 2in.[50mm],% | Rockwell, Qhov nyuaj B nplai | ||
| ksi | Mpa | ksi | Mpa | |||||
| 1020 | Cov Hlau Carbon | HR | 50 | 345 | 32 | 220 | 25 | 55 |
| CW | 70 | 485 | 60 | 415 | 5 | 75 | ||
| SR | 65 | 450 | 50 | 345 | 10 | 72 | ||
| A | 48 | 330 | 28 | 195 | 30 | 50 | ||
| N | 55 | 380 | 34 | 235 | 22 | 60 | ||
| 1025 | Cov Hlau Carbon | HR | 55 | 380 | 35 | 240 | 25 | 60 |
| CW | 75 | 515 | 65 | 450 | 5 | 80 | ||
| SR | 70 | 485 | 55 | 380 | 8 | 75 | ||
| A | 53 | 365 | 30 | 205 | 25 | 57 | ||
| N | 55 | 380 | 35 | 250 | 22 | 60 | ||
| 1035 | Cov Hlau Carbon | HR | 65 | 450 | 40 | 275 | 20 | 72 |
| CW | 85 | 585 | 75 | 515 | 5 | 88 | ||
| SR | 75 | 515 | 65 | 450 | 8 | 80 | ||
| A | 60 | 415 | 33 | 230 | 25 | 67 | ||
| N | 65 | 450 | 40 | 275 | 20 | 72 | ||
| 1045 | Cov Hlau Carbon | HR | 75 | 515 | 45 | 310 | 15 | 80 |
| CW | 90 | 620 | 80 | 550 | 5 | 90 | ||
| SR | 80 | 550 | 70 | 485 | 8 | 85 | ||
| A | 65 | 450 | 35 | 240 | 20 | 72 | ||
| N | 75 | 515 | 48 | 330 | 15 | 80 | ||
| 1050 | Cov Hlau Carbon | HR | 80 | 550 | 50 | 345 | 10 | 85 |
| SR | 82 | 565 | 70 | 485 | 6 | 86 | ||
| A | 68 | 470 | 38 | 260 | 18 | 74 | ||
| N | 75 | 540 | 50 | 345 | 12 | 82 | ||
| 1118 | Resulfurized los yog Rephosphorized, los yog ob qho tib si, Cov Hlau Carbon | HR | 50 | 345 | 35 | 240 | 25 | 55 |
| CW | 75 | 515 | 60 | 415 | 5 | 80 | ||
| SR | 70 | 485 | 55 | 380 | 8 | 75 | ||
| A | 80 | 345 | 30 | 205 | 25 | 55 | ||
| N | 55 | 380 | 35 | 240 | 20 | 60 | ||
| 1137 | Resulfurized los yog Rephosphorized, los yog ob qho tib si, Cov Hlau Carbon | HR | 70 | 485 | 40 | 275 | 20 | 75 |
| CW | 80 | 550 | 65 | 450 | 5 | 85 | ||
| SR | 75 | 515 | 60 | 415 | 8 | 80 | ||
| A | 65 | 450 | 35 | 240 | 22 | 72 | ||
| N | 70 | 485 | 43 | 295 | 15 | 75 | ||
| 4130 | Cov Hlau Sib Xyaws | HR | 90 | 620 | 70 | 485 | 20 | 89 |
| SR | 105 | 725 | 85 | 585 | 10 | 95 | ||
| A | 75 | 515 | 55 | 380 | 30 | 81 | ||
| N | 90 | 620 | 60 | 415 | 20 | 89 | ||
| 4140 | Cov Hlau Sib Xyaws | HR | 120 | 825 | 90 | 620 | 15 | 100 |
| SR | 120 | 825 | 100 | 690 | 10 | 100 | ||
| A | 80 | 550 | 60 | 415 | 25 | 85 | ||
| N | 120 | 825 | 90 | 620 | 20 | 100 | ||
HR-Kub Dov, CW-Ua Haujlwm Txias, SR-Kev Nyuaj Siab, A-Annealed thiab N-Normalized.
Kev kam rau sab nraud
Rooj 6 Kev kam rau sab nraudrau Cov Tubing Kub-Tiav Lawm Puag Ncig
Rooj 12 Kev kam rau sab nraud ntawm txoj kab uas hla rauCov Tubing Seamless Hauv Av
| Loj Sab Nraud Txoj Kab Uas hla, nyob rau hauv. [mm] | Kev kam rau sab nraud ntawm txoj kab uas hla rau qhov loj thiab ntev uas muab, hauv. [hli] | |||
| Dhau | Nyob rau hauv qab | Dhau | Nyob rau hauv qab | |
| OD≤1 1/4 [31.8] | 0.003 [0.08] thaum L≤16ft [4.9m] | 0.000 | 0.004 [0.10] thaum L > 16ft [4.9m] | 0.000 |
| 1 1/4 [31.8] ＜ OD ≤2 [50.8] | 0.005 [0.13] thaum L≤16ft [4.9m] | 0.000 | 0.006 [0.15] thaum L > 16ft [4.9m] | 0.000 |
| 2 [50.8] ＜ OD ≤3 [76.2] | 0.005 [0.13] thaum L≤12ft [3.7m] | 0.000 | 0.006 [0.15] thaum L≤16ft [4.9m] | 0.000 |
| 3 [76.2] ＜ OD ≤4 [101.6] | 0.006 [0.15] thaum L≤12ft [3.7m] | 0.000 | 0.006 [0.15] thaum L≤16ft [4.9m] | 0.000 |
Kev kam rau siab ntawm phab ntsa
Rooj 7 Phab Ntsa Thickness Tolerancesrau Cov Tubing Kub-Tiav Lawm Puag Ncig
Rooj 10 Kev Tiv Thaiv Phab Ntsa Thicknessrau Cov Tubing Ua Haujlwm Txias
| Phab ntsa Thickness Ranges li Feem pua ntawm Sab Nraud Txoj Kab uas hla | Phab Ntsa Thickness Tolerance Tshaj thiab Hauv Qab Nominal,% | |
| OD≤1.499in[38.07mm] | OD≥1.500 nyob rau hauv [38.10 hli] | |
| OD/WT≤25 | 10.0 | 7.5 |
| OD/WT> 25 | 12.5 | 10.0 |
Kev kam rau sab nraud thiab sab hauv
Rooj 8 Kev kam rau sab nraud thiab sab hauv txoj kab uas hla rauCov Tubing Ua Haujlwm Txias Puag Ncig (Ntiag Tug)
Rooj 9 Kev kam rau sab nraud thiab sab hauvrau Cov Tubing Ua Haujlwm Txias Puag Ncig (SI Units)
Sab Nraud Txoj Kab uas hla thiab Phab Ntsa Thickness kam rau siab
Rooj 11 Sab Nraud Txoj Kab uas hla thiab Phab Ntsa Tolerancesrau Cov Tubing Hlau Uas Tsis Muaj Qhov Txuas
| Qhov Loj Qhia Sab Nraud Txoj Kab Uas hla, nyob rau hauv. [hli] | Sab Nraud Txoj Kab Uas hla, nyob rau hauv. [hli] | Phab ntsa tuab, % |
| <6 3/4 [171.4] | ±0.005 [0.13] | ±12.5 |
| 6 3/4 - 8 [171.4 - 203.2] | ±0.010 [0.25] | ±12.5 |
Kev kam rau siab ntev
Rooj 13 Qhov Ntev Tolerancesrau Cov Tubing Kub-Tiav lossis Txias-Tiav
Kev Ncaj Ncees Kev kam rau siab
Rooj 14 Kev Ncaj Ncees Tolerancesrau Seamless Round Mechanical Tubing
Cov yeeb nkab yuav tsum tau coated nrog ib zaj duab xis ntawm roj ua ntej molding kom tiv thaiv xeb.
Cov roj tiv thaiv xeb kuj tseem siv tau rau sab hauv thiab sab nraud ntawm cov yeeb nkab.
Kev tsav dav hlau thiab kev tsav dav hlau: kev tsim cov khoom tseem ceeb xws li lub cav dav hlau thiab cov tshuab txhawb nqa spacecraft.
Kev lag luam hluav taws xob: cov khoom siv drilling thiab kev tsim cov kav dej boiler siab.
Kev tsim khoom siv thiab tshuabCov khoom tseem ceeb uas ua rau muaj ntau yam tshuab thiab khoom siv hauv kev lag luam.
Cov khoom siv kis las: Kev tsim cov thav tsheb kauj vab ua haujlwm zoo thiab lwm yam chaw ua si.
Kev tsim kho thiab kev tsim kho: cov khoom txhawb nqa rau cov tsev thiab cov ntawv thov hauv cov chaw muaj kev kub siab.
1. EN 10297-1: E355, 25CrMo4, 42CrMo4, thiab lwm yam. Cov ntaub ntawv no tuaj yeem suav tias yog qhov sib npaug ntawm qee cov hlau carbon thiab hlau alloy hauv ASTM A519.
2. DIN 1629: St52, St37.4, thiab lwm yam. Feem ntau siv rau kev kho tshuab thiab kev teeb tsa, cov no zoo ib yam li cov hlau tsis muaj zog hauv ASTM A519.
3. JIS G3445: STKM13A, STKM13B, thiab lwm yam. Cov no yog cov kav hlau carbon uas siv rau kev kho tshuab thiab kev tsim kho.
4. BS 6323:CFS 3, CFS 4, CFS 8, thiab lwm yam. Cov no yog cov raj hlau tsis muaj qhov thiab vuam rau kev tsim kho tsheb, kev kho tshuab, thiab kev tsim kho dav dav.
5. GB/T 8162:20#, 45#, 40Cr, 20CrMo, thiab lwm yam. Cov kav hlau tsis muaj seamless thiab cov kav dej rau cov qauv dav dav thiab cov qauv kho tshuab.
6. ISO 683-17: 100Cr6, thiab lwm yam, feem ntau siv rau hauv kev tsim khoom siv, kuj tuaj yeem nrhiav tau daim ntawv thov hauv kev tsim kho tshuab thiab muaj cov ntawv thov zoo sib xws rau qee cov hlau alloy ntawm ASTM A519.
Thaum xaiv cov khoom sib npaug, nws yog ib qho tseem ceeb uas yuav tsum xa mus rau cov ntsiab lus tshuaj lom neeg thiab cov lus qhia txog cov khoom siv kho tshuab kom ntseeg tau tias cov khoom siv xaiv yuav ua tau raws li qhov yuav tsum tau ua ntawm daim ntawv thov tshwj xeeb.
Txij li thaum nws tau tsim tsa xyoo 2014, Botop Steel tau dhau los ua tus thawj coj ntawm cov yeeb nkab hlau carbon hauv Sab Qaum Teb Suav teb, paub txog kev pabcuam zoo heev, cov khoom lag luam zoo, thiab cov kev daws teeb meem dav dav. Lub tuam txhab muab ntau yam yeeb nkab hlau carbon thiab cov khoom lag luam cuam tshuam, suav nrog cov yeeb nkab hlau tsis muaj qhov txuas, ERW, LSAW, thiab SSAW, nrog rau cov khoom siv yeeb nkab thiab flanges tiav.
Nws cov khoom tshwj xeeb kuj suav nrog cov hlau alloys zoo thiab cov hlau stainless austenitic, tsim los ua kom tau raws li qhov xav tau ntawm ntau yam dej num pipeline.
