EN 10219 S275J0H thiab S275J2Hyog txias-tsim welded structural hollow seem ua los ntawm non-alloyed steel raws li EN 10219.
Lawv ob leeg muaj qhov tsawg kawg nkaus lub zog ntawm 275MPa (phab ntsa thickness ≤16mm).Qhov sib txawv tseem ceeb yog nyob rau hauv cov khoom cuam tshuam: S275J0H muaj qhov cuam tshuam tsawg kawg nkaus ntawm 27 J ntawm 0 ° C, thaum S275J2H muaj qhov cuam tshuam tsawg kawg nkaus ntawm 27 J ntawm -20 ° C.
Haum rau cov ntawv thov hauv cov tsev thiab cov qauv tsim vaj tsev uas raug rau cov khoom sib zog.
BS EN 10219 yog European Standard EN 10219 tau txais los ntawm UK.
Phab ntsa thickness ≤40mm, Sab nraud txoj kab uas hla ≤2500mm.
CFCHS yog cov ntawv luv rau Cold-Formed Circular Hollow Section.
EN 10219 tus qauv npog ntau yam ntawm hollow structural steel duab, suav nrog puag ncig, square, duab plaub, thiab oval, kom haum rau kev siv sib txawv.
Botop Steelspecializes nyob rau hauv muab round hollow seem steel hlab nyob rau hauv ntau qhov ntau thiab tsawg thiab cov txheej txheem kom haum rau ntau yam kev lag luam kev lag luam, kom ntseeg tau tias cov kev xav tau tshwj xeeb ntawm peb cov neeg siv khoom tuaj yeem ntsib.
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, nrog rauSMLS, ERW, LSAW, thiabSSAWsteel yeeb nkab, nrog rau cov kab tiav 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.
Peb tos ntsoov yuav tsim kom muaj kev sib koom tes nrog koj thiab tsim kom muaj kev yeej-yeej yav tom ntej ua ke.
Raw steel rau kev tsim cov khoom txias-tsim hollow seem yog deoxidized thiab yuav tsum tau ua raws li cov kev cai tshwj xeeb.
Cov kev cai cuam tshuam rau S275J0H thiab S275J2H yogFF(Tag nrho cov hlau uas muaj nitrogen binding ntsiab nyob rau hauv cov nyiaj txaus los khi muaj nitrogen (xws li min.0,020% tag nrho Al los yog 0,015 % soluble Al)).
Kev xa khoom: Rolled lossis normalized / normalized dov (N) rau JR, J0, J2, thiab K2 steels.
Cov kav hlau rau EN 10219 tuaj yeem tsim los ntawm ob qho tib siERW(electro resistance welding) thiabSAW(submerged arc vuam) kev tsim khoom.
Kev tsim tawm ntawmERW tubesmuaj qhov zoo ntawm kev ua kom nrawm dua thiab pheej yig dua thiab feem ntau yog xaiv rau cov haujlwm uas xav tau cov khoom loj thiab cov nqi tsim nyog.
ERWcov raj feem ntau yog siv los tsim cov kab me me thiab cov phab ntsa nyias nyias, thaumSAWcov raj yog tsim nyog rau cov kab uas loj dua thiab cov phab ntsa tuab.Thov xaiv yam tsim nyog cov yeeb nkab steel rau koj qhov project.
ERW cov kav dej tsim raws li EN 10219 tsis tas yuav tsum muaj kev sib txuas sab hauv.
Qhov no yog vim hais tias EN 10219 cov raj feem ntau yog siv rau hauv cov qauv kev siv, xws li kev tsim kho thiab kev siv tshuab engineering, qhov uas yuav tsum tau ua rau weld zoo li feem ntau tsis nruj dua li cov hlab ntsha siab lossis cov kav dej siab.Yog li ntawd, ntev npaum li lub zog thiab kev ncaj ncees ntawm cov vuam ua tau raws li qhov yuav tsum tau ua ntawm tus qauv, cov welds sab hauv tuaj yeem siv yam tsis muaj kev txiav ntxiv.
Tsis muaj kev kho cua sov tom ntej, tshwj tsis yog tias lub vuam yuav nyob rau hauv ib qho kev welded los yog kub-kho mob.
Cast Analysis (Chemical Composition of Raw Materials)
Ob leeg S275J0H thiab S275J2H muaj qhov siab tshaj plaws carbon sib npaug tus nqi (CEV) ntawm 0.40%.
S725J0H thiab S275J2H nrog qhov siab tshaj plaws CEV ntawm 0.4% qhia txog kev weldability zoo dua uas tsis tshua muaj kev pheej hmoo ntawm hardening thiab tawg thaum vuam.
Nws tseem tuaj yeem suav nrog cov qauv hauv qab no:
CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15.
Product Analysis (Chemical Composition ntawm cov khoom tiav)
Thaum lub sij hawm tsim cov hlau, cov tshuaj muaj pes tsawg leeg yuav hloov tau ntau yam, thiab cov kev hloov no yuav cuam tshuam rau cov khoom thiab cov hlau zoo.
Qhov kawg tiav steel yeeb nkab tshuaj muaj pes tsawg leeg yuav tsum ua raws li cov tshuaj muaj pes tsawg leeg ntawm cov casting thiab nws permissible sib txawv.
Cov cuab yeej cuab tam tsis muaj xws li lub zog tawm los, lub zog tensile, elongation, thiab kev cuam tshuam lub zog.
Kev ntxhov siab rau kev ntxhov siab ntawm ntau dua 580 ℃ lossis ntau dua ib teev tuaj yeem ua rau cov khoom siv kho tshuab tsis zoo.
Sau ntawv:
Kev ntsuas cuam tshuam tsis tas yuav tsum tau thaum lub thickness yog <6mm.
Cov khoom cuam tshuam ntawm JR thiab J0 cov raj zoo tsis raug txheeb xyuas tshwj tsis yog tau teev tseg.
EN 10219 Welds hauv ERW steel kav tuaj yeem kuaj tau los ntawm kev xaiv ib qho ntawm cov hauv qab no.
TS EN 10246-3 Kev lees txais qib E4, tshwj tsis yog cov txheej txheem tig lub raj / pancake coil yuav tsum tsis tso cai;
EN 10246-5 rau qib F5;
TS EN 10246-8 Kev lees txais qib U5.
Kev suav cov theoretical hnyav ntawm EN 10219 raj tuaj yeem ua raws li lub raj ntom ntom ntawm 7.85 kg / dm³.
M = (DT) × T × 0.02466
M yog qhov loj ntawm ib chav tsev ntev;
D yog qhov teev sab nraud txoj kab uas hla, units hauv mm;
T yog qhov tshwj xeeb phab ntsa thickness, units hauv mm.
Tolerances ntawm cov duab, ncaj thiab pawg
Tolerances Ntev
Hollow seem raj tsim raws li EN 10219 yog weldable.
Thaum welding, txias cracking nyob rau hauv weld cheeb tsam yog lub ntsiab kev pheej hmoo raws li lub thickness, lub zog theem, thiab CEV ntawm cov khoom nce.Kev sib tsoo txias yog tshwm sim los ntawm kev sib xyaw ua ke ntawm ntau yam:
qib siab ntawm diffusible hydrogen nyob rau hauv weld hlau;
ib tug nkig qauv nyob rau hauv lub tshav kub-cuam tshuam cheeb tsam;
tseem ceeb tensile kev nyuaj siab concentration nyob rau hauv lub welded sib koom.
Qhov saum npoo ntawm cov yeeb nkab steel yuav tsum du thiab tsis muaj qhov tsis xws luag uas yuav cuam tshuam rau kev ua haujlwm ntawm cov khoom, xws li tawg, qhov, khawb, lossis xeb.
Cov pob, grooves, los yog qhov ntiav longitudinal grooves tsim los ntawm cov txheej txheem tsim khoom siv tau ntev npaum li qhov seem ntawm phab ntsa tuab nyob rau hauv kev ua siab ntev, qhov tsis xws luag tuaj yeem raug tshem tawm los ntawm kev sib tsoo, thiab kho phab ntsa thickness raws li qhov tsawg kawg nkaus thickness.
Botop SteelTsis yog tsuas yog muab cov raj hlau zoo ua raws li EN 10219, nws tseem muaj ntau yam kev xaiv rau txheej txheej steel hlau kom haum rau cov kev xav tau tshwj xeeb ntawm nws cov neeg siv khoom hauv ntau qhov haujlwm engineering.Cov txheej txheem no yog tsim los txhim kho cov kev tiv thaiv corrosion ntawm cov hlab thiab ntxiv kev tiv thaiv ntxiv, yog li txuas ntxiv lawv lub neej kev pab cuam.
Kub-dip Galvanizing
3LPE (HDPE) Txheej
FBE Txheej
Varnish Txheej
Xim Txheej
Cement Weight Txheej
Choj Cheebtsam: non-primary load-bearing structures siv nyob rau hauv txuas hniav, xws li railings thiab parapets.
Architectural ncej: kev txhawb nqa kab thiab kab teeb siv hauv tsev thiab engineering engineering.
Piping systems: piping rau kev thauj mus los ntawm cov kua thiab roj, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov yuav tsum tau ib tug degree ntawm saj zawg zog thiab corrosion kuj.
Cov qauv ib ntus: Kev txhawb nqa ib ntus thiab thav duab haum rau kev tsim kho thiab engineering chaw.
Cov ntawv thov no tau txais txiaj ntsig zoo ntawm cov khoom siv kho tshuab zoo heev thiab weldability ntawm S275J0H thiab S275J2H kom tau raws li cov kev xav tau ntawm lub teeb yuag tab sis ruaj khov.
ASTM A500 1:Standard Specification rau Cold-Formed Welded thiab Seamless Carbon Steel Structural Tubing nyob rau hauv Rounds thiab Shapes.
ASTM A501 Cov Lus Qhia Tshwj Xeeb: Txuj Specification rau Kub-Formed Welded thiab Seamless Carbon Steel Structural Tubing.
TS EN 10210: Kub tiav structural hollow seem ntawm non-alloy thiab nplua grain steels.
TS EN 10219: Txias tsim welded structural hollow seem ntawm non-alloy thiab fine grain steels.
TIAB SA 3466: Carbon steel square thiab rectangular raj rau cov qauv dav dav.
AS/NZS 1163: Cold-formed structural steel hollow seem.
Cov qauv no tau siv dav thoob ntiaj teb, thiab lawv pab kom ntseeg tau tias cov qauv steel hlau ua tau raws li qhov xav tau ntawm kev ua tau zoo hauv kev siv engineering sib txawv.Thaum xaiv tus qauv steel yeeb nkab, nws yog ib qho tseem ceeb uas yuav tsum xav txog nws cov kev xav tau tshwj xeeb, cov kev cai hauv cheeb tsam, thiab cov kev xav tau ntawm kev ua haujlwm.
ASTM A252 GR.3 Cov Qauv LSAW (JCOE) Carbon Steel Yeeb Nkab
BS EN10210 S275J0H LSAW (JCOE) Hlau Yeeb Nkab
ASTM A671 / A671M LSAW Steel Yeeb Nkab
ASTM A672 B60 / B70 / C60 / C65 / C70 LSAW Carbon Steel Yeeb Nkab
API 5L X65 PSL1 / PSL 2 LSAW Carbon Steel Pipe / API 5L Qib X70 LSAW Steel Yeeb Nkab
EN10219 S355J0H LSAW (JCOE) Steel Pipe
