BS EN 10210 S275J0Hyog ib qho hlau hollow structural steel uas tau ua tiav los ntawm kev kub thiab txiasBS EN 10210nyob rau hauv ntau yam duab ntawm puag ncig, square, rectangular, lossis oval.
Cov khoom siv S275J0H yog tus yam ntxwv los ntawm qhov tsawg kawg nkaus ntawm 275 MPa ntawm qhov tuab tsis pub ntau tshaj 16 hli; nws lub zog cuam tshuam tsawg kawg nkaus yog tsawg kawg yog 27 J ntawm 0 ℃.
S275J0H yog ib hom hlau carbon, tus lej hlau1.0149, uas muaj cov qauv zoo thiab cov khoom ua tiav, feem ntau yog siv rau hauv cov qauv tsev, tab sis kuj siv rau cov khoom tsis muaj kev thauj khoom, tuaj yeem ua rau kev tswj hwm kev ruaj khov thiab kev ua haujlwm ntev raws li kev paub txog cov txiaj ntsig pheej yig.
Lus Cim: Txhua qhov yuav tsum tau ua hauv BS EN 10210 kuj siv rau EN 10210 thiab yog li ntawd tsis rov ua dua ntawm no.
Cov qib kev xaiv hauv BS EN 10210 raug muab faib raws li EN 10027-1 thiab cov lej hlau raug muab faib raws li EN 10027-2.
| Lub npe hlau | Tus lej hlau | Hom hlau | Lub npe hlau | Tus lej hlau | Hom hlau |
| S235JRH | 1.0039 | cov hlau carbon | S275NH | 1.0493 | cov hlau carbon |
| S275J0H | 1.0149 | cov hlau carbon | S275NLH | 1.0497 | cov hlau carbon |
| S275J2H | 1.0138 | cov hlau carbon | S355NH | 1.0539 | cov hlau carbon |
| S355J0H | 1.0547 | cov hlau carbon | S355NLH | 1.0549 | cov hlau carbon |
| S355J2H | 1.0576 | cov hlau carbon | S420NH | 1.8750 | hlau sib xyaw |
| S355K2H | 1.0512 | cov hlau carbon | S420NLH | 1.8751 | hlau sib xyaw |
| S460NH | 1.8953 | hlau sib xyaw | |||
| S460NLH | 1.8956 | hlau sib xyaw |
Yog xav paub ntxiv txog lub ntsiab lus tshwj xeeb ntawm cov ntawv thiab cov lej hauv cov qib,koj tuaj yeem nyem qhov no.
Phab ntsa tuab ≤120mm.
Voj Voog: Sab nraud txoj kab uas hla mus txog 2500 hli;
Plaub fab: Sab nraud qhov ntev txog li 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 kev qhia 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!
Cov kav hlau LSAW welded feem ntau yog tsim los ntawm kev tsim cov phaj hlau rau hauv cov raj siv cov txheej txheem JCOE molding, ua raws li kev vuam siv ob sab submerged arc (DSAW) kev siv tshuab vuam, thiab ua tiav los ntawm ntau qhov kev tshuaj xyuas thiab kev kho mob.
Koj xaiv cov txheej txheem tsim khoom li cas? Qhov sib txawv thiab qhov zoo ntawm cov yeeb nkab hlau tsis muaj qhov sib txuas, LSAW, kev vuam submerged arc, thiab kev vuam submerged arc yog dab tsi? Thiab qhov loj ntawm txhua txoj kev yog dab tsi? Koj tuaj yeem nyem qhov txuas hauv qab no kom pom nws.
Zoo JR,J0, J2 thiab K2 -kub tiav lawm;
Cov yam ntxwv N thiab NL - normalized. Normalized suav nrog normalized dov.
| Sqib teel | Hom ntawm kev tshem tawm cov pa phema | % los ntawm pawg, siab tshaj plaws | |||||||
| C (Cov pa roj carbon) | Si (Silicon) | Mn (Manganese) | P (Phosphorus) | S (Xim av) | Nb,c (Nitrogen) | ||||
| Lub npe hlau | Tus lej hlau | Qhov tuab uas tau teev tseg (hli) | |||||||
| ≤40 | >40≤120 | ||||||||
| S275J0H | 1.0149 | FN | 0.20 | 0.22 | — | 1.5 | 0.035 | 0.035 | 0.009 |
aFN = Tsis pub siv cov hlau rimming;
bNws raug tso cai kom dhau qhov nqi teev tseg yog tias rau txhua qhov nce ntawm 0.001% N P, cov ntsiab lus siab tshaj plaws kuj raug txo los ntawm 0.005%. Txawm li cas los xij, cov ntsiab lus N ntawm qhov kev tshuaj xyuas pov tseg yuav tsum tsis pub ntau tshaj 0.012%;
cTus nqi siab tshaj plaws rau nitrogen tsis siv yog tias cov tshuaj lom neeg qhia tias muaj tsawg kawg nkaus tag nrho Al cov ntsiab lus ntawm 0.020% nrog qhov tsawg kawg nkaus Al/N piv ntawm 2:1, lossis yog tias muaj lwm cov ntsiab lus N-binding txaus. Cov ntsiab lus N-binding yuav tsum tau sau tseg rau hauv Daim Ntawv Tshuaj Xyuas.
Cov khoom siv kho tshuab ntawm BS EN 10210 suav nrog lub zog tawm los, lub zog tensile, elongation, thiab cov khoom cuam tshuam.
Cov seem hollow yuav tsum muaj qhov chaw du uas sib raug rau txoj kev tsim khoom siv; cov pob, cov qhov, lossis cov kab ntev uas tsis tob uas tshwm sim los ntawm cov txheej txheem tsim khoom yog qhov tso cai, muab qhov tuab yog nyob rau hauv kev kam rau siab.
EN 10210 Cov yeeb nkab hlau yog qhov tsim nyog rau kev kub dip galvanizing.
EN 10210 tsis tas yuav tsum tau kuaj xyuas hydrostatic ntawm cov kav hlau.
Qhov no yog vim tias cov khoom lag luam EN 10210 feem ntau yog siv rau cov hom phiaj kev tsim kho thiab tsis yog rau cov kav dej uas yuav tsum tau raug siab.
Yog tias xav tau kev sim siab hydrostatic, siv tau rau EN 10216 (seamless steel tubes) lossis EN 10217 (welded steel tubes).
Tsis muaj qhov yuav tsum tau ua hauv tus qauv kom ua tiav NDT ntawm cov kav hlau hollow.
Yog tias NDT raug ua rau ntawm cov kav hlau welded, cov kev cai hauv qab no tuaj yeem xa mus rau.
Cov Khoom Siv Hluav Taws Xob Welded
Rau cov kav hlau hollow puag ncig yog ERW.
Koj tuaj yeem xaiv ib qho ntawm cov kev sim hauv qab no rau kev sim.
a) EN 10246-3 mus rau qib kev lees txais E4, tsuas yog tias txoj kev tig lub raj / pancake coil yuav tsis raug tso cai;
b) EN 10246-5 mus rau qib kev lees txais F5;
c) EN 10246-8 mus rau qib kev lees txais U5.
Cov Seem Uas Muaj Cov Khoom Siv Submerged Arc Welded
Rau cov kav hlau hollow puag ncig yog LSAW thiab SSAW.
Qhov vuam seam ntawm submerged arc welded hollow sections yuav tsum tau kuaj xyuas raws li EN 10246-9 mus rau qib kev lees txais U4 lossis los ntawm radiography raws li EN 10246-10 nrog chav kawm zoo duab R2.
Yog xav paub ntxiv txog cov kev cai ntsig txog kev kam rau siab ntawm qhov ntev,thov nias ntawm no kom paub ntxiv.
EN 10025 - S275J0;
JIS G3106 - SM400B;
CSA G40.21 - 300W;
Thaum xaiv EN 10210 S275J0H sib npaug, yuav tsum muaj kev sib piv ntxaws ntxaws ntawm cov tshuaj lom neeg thiab cov khoom siv kho tshuab kom ntseeg tau tias cov khoom xaiv tau ua tau raws li cov kev cai tshwj xeeb ntawm qhov project.
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.
