BS EN 10210 S275J0Hyog qhov kub-tiav hollow structural steel seem tsim rauBS EN 10210nyob rau hauv ntau yam puag ncig, square, rectangular, los yog oval seem duab.
S275J0H cov khoom yog tus cwj pwm los ntawm qhov tsawg kawg nkaus lub zog ntawm 275 MPa ntawm lub thickness ntawm tsis ntau tshaj 16 hli;nws qhov tsawg kawg nkaus cuam tshuam lub zog yog qhov tsawg kawg nkaus ntawm 27 J ntawm 0 ℃.
S275J0H belongs rau ib hom carbon steel, steel tooj1.0149 ib, uas muaj cov qauv zoo thiab kev ua haujlwm zoo, feem ntau yog siv hauv cov qauv tsim, tab sis kuj tseem siv rau cov khoom siv tsis-load-cov kabmob, tuaj yeem muab kev tswj xyuas cov qauv kev ruaj ntseg thiab kav ntev raws li kev ua tiav ntawm cov txiaj ntsig qis.
Nco tseg: Txhua qhov kev xav tau hauv BS EN 10210 kuj tseem siv tau rau EN 10210 thiab yog li tsis rov hais dua ntawm no.
Qib kev xaiv nyob rau hauv BS EN 10210 yog muab raws li EN 10027-1 thiab steel tooj raug muab raws li EN 10027-2.
| Steel npe | Hlau tooj | Hom hlau | Steel npe | Hlau tooj | Hom hlau |
| S235 JRH | 1, 0039 | carbon hlau | S275 NH | 1.049 3 | carbon hlau |
| S275J0H | 1.0149 ib | carbon hlau | S275 NLH | 1.0497 ib | carbon hlau |
| S275J2H | 1, 0138 | carbon hlau | S355 NH | 1.0539 ib | carbon hlau |
| S355J0H | 1.0547 ib | carbon hlau | S355 NLH | 1.0549 ib | carbon hlau |
| S355J2H | 1.0576 ib | carbon hlau | S420 NH | 1.8750 Nws | hlau alloy |
| S355K2H | 1.0512 | carbon hlau | S420 NLH | 1.8751 ib | hlau alloy |
| S460 NH | 1.8953 ib | hlau alloy | |||
| S460 NWS | 1.8956 ib | hlau alloy |
Yog xav paub ntxiv txog lub ntsiab lus tshwj xeeb ntawm cov tsiaj ntawv thiab cov lej hauv cov qib,koj tuaj yeem nias ntawm no.
Phab ntsa thickness ≤120mm.
Circular: Sab nraud txoj kab uas hla mus txog 2500 mm;
Square: Sab nraud qhov ntev txog 800 mm x 800 mm;
Rectangular: Sab nraud qhov ntev txog li 750 mm x 500 mm;
Elliptical: Sab nraud qhov ntev txog li 500 mm x 250 mm.
Peb tshwj xeeb hauv kev muab ntau yam tshwj xeeb ntawm Round Hollow Structural Steel Pipe, yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb, tos ntsoov yuav koom tes nrog koj!
LSAW welded steel kav yog tsim los ntawm kev tsim cov hlau phaj rau hauv cov raj siv JCOE molding txheej txheem, ua raws li kev vuam siv ob sab submerged arc (DSAW) vuam tshuab, thiab ua tiav los ntawm ntau qhov kev tshuaj xyuas thiab kev kho mob.
Koj xaiv txoj kev tsim khoom zoo li cas?Dab tsi yog qhov txawv thiab qhov zoo ntawm seamless steel yeeb nkab, LSAW, submerged arc vuam, thiab submerged arc vuam?Thiab qhov luaj li cas ntawm txhua qhov txheej txheem yog dab tsi?Koj tuaj yeem nyem qhov txuas hauv qab no los saib nws.
Zoo JR,J0, J2 thiab K2 -kub tiav;
Zoo N thiab NL - normalized.Normalized muaj xws li normalized dov.
| Sqib teel | Hom ntawm deoxidationa | % los ntawm huab hwm coj, siab kawg | |||||||
| C (Carbon) | Si (Silicon) | Mn (Manganese) | P (phosphorus) | S (Sulphur) | Nb,c ua (Nitrogen) | ||||
| Steel npe | Hlau tooj | Specification thickness (mm) | |||||||
| ≤ 40 | > 40≤120 | ||||||||
| S275J0H | 1.0149 ib | FN | 0.20 ib | 0.22 | — | 1.5 | 0.035 ib | 0.035 ib | 0.009 ib |
aFN = Rimming steel tsis tso cai;
bNws tso cai kom dhau qhov ntsuas qhov ntsuas tau muab rau txhua qhov nce ntawm 0.001 % N tus P, max.cov ntsiab lus tseem raug txo los ntawm 0.005%.Txawm li cas los xij, N cov ntsiab lus ntawm kev ntsuam xyuas cam khwb cia yuav tsum tsis txhob ntau tshaj 0.012%;
cTus nqi siab tshaj plaws rau nitrogen tsis siv yog tias cov tshuaj muaj pes tsawg leeg pom qhov tsawg kawg nkaus Al ntsiab lus ntawm 0.020% nrog qhov tsawg kawg nkaus Al / N piv ntawm 2: 1, lossis yog tias muaj lwm yam N-binding ntsiab.Cov ntsiab lus N-binding yuav tsum tau sau rau hauv Cov Ntaub Ntawv Tshawb Fawb.
Cov khoom siv kho tshuab ntawm BS EN 10210 suav nrog lub zog tawm los, lub zog tensile, elongation, thiab cov khoom cuam tshuam.
Lub hollow seem yuav tsum muaj ib tug du nto sib haum mus rau lub manufacturing txoj kev siv;pob, kab noj hniav, los yog ntiav longitudinal grooves uas tshwm sim los ntawm cov txheej txheem raug tso cai, yog hais tias lub thickness yog nyob rau hauv kam rau ua.
EN 10210 Steel yeeb nkab nto yog tsim rau kub dip galvanizing.
EN 10210 tsis tas yuav tsum muaj kev ntsuas hydrostatic siab ntawm cov kav hlau.
Qhov no yog vim tias EN 10210 cov khoom lag luam tau tsim tshwj xeeb yog siv rau kev tsim qauv thiab tsis yog rau cov kav dej uas yuav tsum tau ua kom raug.
Yog tias yuav tsum tau kuaj xyuas hydrostatic siab, siv tau rau EN 10216 (seamless steel tubes) lossis EN 10217 (welded steel tubes) cov qauv.
Tsis muaj qhov yuav tsum tau ua nyob rau hauv tus qauv los nqa NDT ntawm hollow seem steel kav.
Yog tias NDT tau ua tiav ntawm cov kav hlau welded, cov kev cai hauv qab no tuaj yeem raug xa mus rau.
Electric Welded Tshooj
Rau round hollow seem steel hlab yog ERW.
Koj tuaj yeem xaiv ib qho ntawm cov kev sim hauv qab no rau kev sim.
a) EN 10246-3 rau qib E4, tshwj tsis yog tias cov txheej txheem tig raj / pancake coil yuav tsum tsis tso cai;
b) EN 10246-5 rau qib F5;
c) EN 10246-8 rau qib kev lees paub U5.
Submerged Arc Welded Tshooj
Rau round hollow seem steel hlab yog LSAW thiab SSAW.
Lub vuam seam ntawm submerged arc welded hollow seem yuav tsum raug kuaj raws li EN 10246-9 rau qib U4 lossis radiography raws li EN 10246-10 nrog cov duab zoo hauv chav R2.
Yog xav paub ntxiv txog cov kev cai uas muaj feem xyuam rau qhov ntev ntev,thov nyem qhov no kom paub ntxiv.
EN 10025 - S275J0;
JIS G3106 - SM400B;
CSA G40.21 - 300W;
Thaum xaiv qhov sib npaug EN 10210 S275J0H, yuav tsum ua kom muaj kev sib piv cov ntsiab lus ntawm cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab kom ntseeg tau tias cov khoom xaiv tau raws li qhov tshwj xeeb ntawm qhov project.
Txij li thaum nws tsim nyob rau hauv 2014,Botop Steeltau dhau los ua tus xa khoom ntawm carbon steel yeeb nkab nyob rau sab qaum teb Tuam Tshoj, paub txog kev pabcuam zoo, cov khoom zoo, thiab cov kev daws teeb meem zoo.
Lub tuam txhab muaj ntau yam carbon steel kav thiab lwm yam khoom, xws li seamless, ERW, LSAW, thiab SSAW steel yeeb nkab, raws li zoo raws li ib tug tag nrho lineup ntawm cov yeeb nkab fittings thiab flanges.Nws cov khoom tshwj xeeb kuj suav nrog cov qib high-qib alloys thiab austenitic stainless hlau, tsim kom tau raws li qhov xav tau ntawm ntau yam kev siv kav dej.
