ASTM A53 seamless yeeb nkab hlauyog cais ua A53 Hom S thiab yog cov yeeb nkab hlau tsis muaj seamless.
Nws muab faib ua ob qib, Qib A thiab Qib B, thiab nws tsim nyog rau kev siv tshuab thiab kev siv siab, nrog rau kev siv dav dav rau cov pa dej, dej, roj, thiab huab cua. Cov yeeb nkab hlau no yog cov yeeb nkab carbon uas tsim nyog rau kev vuam thiab kev tsim cov haujlwm suav nrog kev coiling, bending, thiab flange kev sib txuas.
| Tus Qauv | ASTM A53/A53M |
| Nominal Txoj kab uas hla | DN 6- 650 [NPS 1/8 - 26] |
| Qhov Taub Sab Nraud Uas Tau Qhia Tseg | 10.3 - 660 hli [0.405 - 26 nti] |
| Chav Kawm Qhov Hnyav | STD (Tus Qauv), XS (Muaj Zog Ntxiv), XXS (Ob Chav Muaj Zog Ntxiv) |
| Tus lej teem sijhawm. | Teem Caij 10, Teem Caij 20, Teem Caij 30, Teem Caij 40, Teem Caij 60, Teem Caij 80, Teem Caij 100, Teem Caij 120, Teem Caij 140, Teem Caij 160, |
Hauv kev xyaum, Schedule 40 thiab Schedule 80 yog ob qho qib tuab phab ntsa yeeb nkab uas siv dav tshaj plaws. Yog xav paub ntxiv, thov mus saib ntawmTeem sijhawm qib PDFcov ntaub ntawv peb muab.
Txij li thaum nws tau tsim tsa xyoo 2014,Botop Hlautau dhau los ua tus thawj coj ntawm cov yeeb nkab hlau carbon hauv Northern China, paub txog kev pabcuam zoo heev, cov khoom lag luam zoo, thiab cov kev daws teeb meem dav dav.
Lub tuam txhab muaj ntau yam yeeb nkab hlau carbon thiab cov khoom lag luam cuam tshuam, suav nrog cov yeeb nkab hlau seamless, ERW, LSAW, thiab SSAW, nrog rau cov khoom siv yeeb nkab thiab cov 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 haujlwm yeeb nkab.
ASTM A53 cov kav hlau tuaj yeem ua tau seamless lossis welded.
Txoj kev tsim khoom tsis muaj qhov kawg (Hom S) yog kev ua haujlwm kub ntawm cov hlau thiab, yog tias tsim nyog, txias ua tiav ntawm cov khoom siv tubular kub kom ua tiav cov duab, qhov loj me, thiab cov khoom xav tau.
Hauv tus qauv ASTM A53, cov kev cai sib xyaw ua ke rau Hom S thiabHom ECov kav hlau zoo ib yam, thaum cov tshuaj lom neeg sib xyaw ua ke rau Hom F txawv.
ATsib yam tseem ceebCu,Ni,Cr,Mo, thiabVua ke yuav tsum tsis pub tshaj 1.00%.
BRau txhua qhov kev txo qis ntawm 0.01% qis dua qhov siab tshaj plaws ntawm cov pa roj carbon, kev nce ntawm 0.06% ntawm manganese saum toj no qhov siab tshaj plaws yuav raug tso cai txog li ntawm 1.35%.
CRau txhua qhov kev txo qis ntawm 0.01% qis dua qhov siab tshaj plaws ntawm cov pa roj carbon, kev nce ntawm 0.06% ntawm manganese saum toj no qhov siab tshaj plaws yuav raug tso cai txog li ntawm 1.65%.
Kev Ua Haujlwm Nruj
| Daim Ntawv Teev Npe | Kev faib tawm | Qib A | Qib B |
| Lub zog tensile, feeb | MPa [psi] | 330 [48,000] | 415 [60,000] |
| Lub zog tawm los, feeb | MPa [psi] | 205 [30,000] | 240 [35,000] |
| Kev ntevhauv 50 hli [2 nti] | Lus Cim | A, B | A, B |
Kev Ntsuas Khoov
Rau DN ≤ 50 [NPS ≤ 2], ib lub yeeb nkab ntev txaus yuav tsum muaj peev xwm khoov txias los ntawm 90 ° ncig lub mandrel cylindrical, uas txoj kab uas hla yog kaum ob npaug ntawm txoj kab uas hla sab nraud ntawm lub yeeb nkab, yam tsis muaj kev tawg ntawm ib feem twg.
Ob npaug-ntxiv-muaj zog(XXS) cov yeeb nkab hla DN 32 [NPS 1 1/4] tsis tas yuav raug kuaj xyuas khoov.
Kev Ntsuas Kom Sib Nqus
Cov kav hlau tsis muaj seamless tsis tas yuav raug rau qhov kev sim flattening.
Yog tias daim ntawv cog lus xav tau, qhov kev sim tuaj yeem ua tiav raws li cov txheej txheem hauv S1.
Txhua qhov loj ntawm cov kav dej hlau tsis muaj seamless yuav tsum tswj hwm qee qhov dej siab yam tsis muaj qhov xau rau tsawg kawg 5 vib nas this.
Qhov kev sim siab rau cov kav hlau tiaj tiaj tuaj yeem pom nyob rau hauv Rooj X2.2.
Cov kev sim siab rau cov kav hlau uas muaj xov thiab txuas nrog tuaj yeem pom hauv Rooj X2.3.
Nws tuaj yeem siv ua lwm txoj hauv kev rau kev sim hydrostatic.
Tag nrho qhov ntev ntawm txhua lub yeeb nkab seamless yuav tsum raug kuaj hluav taws xob tsis puas tsuaj raws liE213, E309, los yogE570.
Thaum yuav ASTM A53, qhov loj ntawm cov yeeb nkab hlau yuav tsum ua tau raws li cov cai hauv qab no.
| Daim Ntawv Teev Npe | Xaiv | Kev kam rau siab |
| pawg neeg | Qhov hnyav theoretical | ±10% |
| Txoj kab uas hla | DN 40mm [NPS 1/2] los yog me dua | ±0.4 hli |
| DN 50mm [NPS 2] lossis loj dua | ±1% | |
| Qhov tuab | qhov tsawg kawg nkaus ntawm phab ntsa yuav tsum ua raws li Rooj X2.4 | tsawg kawg 87.5% |
| Qhov ntev | sib dua li qhov hnyav ntxiv-muaj zog (XS) | 4.88m-6.71m (tsis pub ntau tshaj 5% ntawm tag nrho cov xov ntev uas tau muab faib ua cov sib koom ua ke (ob daim txuas ua ke)) |
| sib dua li qhov hnyav ntxiv-muaj zog (XS) (lub raj xa dej tiaj tus) | 3.66m-4.88m (Tsis pub ntau tshaj 5% ntawm tag nrho cov naj npawb) | |
| XS, XXS, lossis tuab dua ntawm phab ntsa | 3.66m-6.71m (tsis pub ntau tshaj 5% tag nrho ntawm cov yeeb nkab 1.83m-3.66m) | |
| sib dua li qhov hnyav ntxiv-muaj zog (XS) (ob chav-random ntev) | ≥6.71m (Qhov ntev nruab nrab tsawg kawg yog 10.67m) |
ASTM A53 tus qauv qhia txog cov kev cai rau cov yeeb nkab dub thiab cov txheej txheem galvanized kub ntawm cov yeeb nkab hlau.
Cov Yeeb Nkab Dub
Cov yeeb nkab dub yog hais txog lub xeev ntawm cov yeeb nkab hlau tsis muaj kev kho saum npoo.
Cov kav dej dub feem ntau siv rau hauv qhov chaw uas lub sijhawm khaws cia luv luv, qhov chaw ib puag ncig qhuav thiab tsis xeb, thiab tus nqi feem ntau qis dua vim tias tsis muaj txheej.
Kub-dip Galvanized Txheej
Cov kav dej galvanized, tseem hu ua cov kav dej dawb, feem ntau siv rau hauv cov chaw noo noo lossis corrosive.
Cov zinc hauv cov txheej zinc tuaj yeem yog txhua qib zinc hauv ASTM B6.
Cov yeeb nkab galvanized yuav tsum tsis txhob muaj cov cheeb tsam tsis tau coated, blisters, flux deposits, thiab gross inclusions. Cov pob, projections, globules, lossis cov zinc deposits hnyav uas yuav cuam tshuam rau kev siv cov khoom siv yuav tsis raug tso cai.
Cov ntsiab lus zinc tsis tsawg dua 0.55 kg / m² [1.8 oz / ft²].
Lwm Cov Txheej Txheem
Ntxiv rau cov yeeb nkab dub thiab cov txheej galvanized, cov hom txheej feem ntau suav nrogpleev xim, 3LPE, FBE, thiab lwm yam. Hom txheej txheem tsim nyog tuaj yeem xaiv tau raws li qhov xav tau tshwj xeeb ntawm qhov chaw ua haujlwm.
Kev muab cov ntaub ntawv hauv qab no yuav ua rau koj txoj kev yuav khoom ua haujlwm tau zoo dua thiab raug dua.
Lub npe txheem: ASTM A53/A53M;
Tus Nqi: Tag Nrho qhov ntev lossis tag nrho tus lej;
Qib: Qib A lossis Qib B;
Hom: S, E, lossis F;
Kev kho qhov chaw: dub los yog galvanized;
Loj: Sab nraud txoj kab uas hla, phab ntsa tuab, lossis daim ntawv teem sijhawm lossis qib hnyav;
Ntev: qhov ntev teev tseg lossis qhov ntev random;
Qhov kawg ntawm cov yeeb nkab: qhov kawg tiaj tus, qhov kawg beveled, lossis qhov kawg threaded;
