S275JR Steel Phaj rau Kev Tsim Kho Kev Lag Luam
S275JR steel daim hlau yog cov khoom siv tseem ceeb thiab siv dav hauv kev tsim kho kev lag luam, khoom plig rau lawv qhov zoo tshaj plaws ntawm kev sib npaug ntawm lub zog, weldability, formability, thiab nqi -effectiveness. Raws li tau hais los ntawm European tus qauv EN 10025-2, lawv ua haujlwm raws li cov hlau ua haujlwm rau ntau yam ntawm cov qauv thiab cov ntawv tsis yog cov qauv.
Cov yam ntxwv tseem ceeb & Cov txiaj ntsig rau kev tsim kho
| Feature | Cov txiaj ntsig rau kev tsim kho |
|---|---|
| Lub zog txaus (275 MPa tawm los) | Muab cov khoom thauj txaus-cov kabmob muaj peev xwm rau feem ntau ntawm cov qauv hauv cov tsev qis- nce siab, kev tsim kho vaj tse, thiab kev txhawb nqa uas tsis dhau - engineering. |
| High Ductility & Formability | Yuav tau yooj yim sheared, punched, drilled, thiabtxias -bentntawm -qhov chaw lossis hauv kev cob qhia los tsim kev cai brackets, daim hlau txuas, thiab cov khoom nkhaus yam tsis muaj qhov tawg. |
| Weldability zoo heev | Yuav welded siv tag nrho cov txheej txheem txheem (SMAW, MIG/MAG, SAW)tsis tas yuav tsum ua ntej- cua sovrau cov thicknesses (<25-30mm), simplifying fabrication and reducing costs. |
| Tus nqi -Kev ua tau zoo | Raws li cov khoom tsis yog- alloy, kub- dov steel, nws yog ib qho ntawm covfeem ntau pheej yig thiab yooj yim muajstructural phaj cov ntaub ntawv thoob ntiaj teb. |
| Reliable Baseline Toughness | Qhov guaranteed27 Joules ntawm +20 degreecuam tshuam lub zog ua kom muaj kev tiv thaiv txaus rau cov pob txha tawg rau cov qauv ua haujlwm nyob rau hauv ambient, temperate climates. |
| Kev ua kom yooj yim | Yooj yim txaiskub-dip galvanizing, pleev xim rau, thiab lwm yam kev kho deg rau kev tiv thaiv corrosion hauv qhov xav tau ib puag ncig. |
Cov ntawv thov tseem ceeb hauv kev tsim kho
S275JR phaj yog siv ntau hom:
Structure Framing & Connections:
Shear phab ntsa, gusset daim hlau, thiab kev sib txuas ntawm cov hlau -framed vaj tse.
Lub hauv paus phaj rau kab thiab cov khoom hnyav.
Brackets, cleats, thiab stiffeners rau koom nrog kab teeb, kab, thiab trusses.
Infrastructure & Civil Works:
Choj decking, parapets, thiab lwm yam kev txhawb nqa cov qauv (rau cov uas tsis yog-tseem ceeb, tsis yog- tawg- cov tswv cuab tseem ceeb).
Platforms, taug kev, thiab stair treads hauv cov tsev lag luam thiab kev lag luam.
Formwork panels thiab kev txhawb nqa rau kev tsim vaj tsev.
Piling qhia thav duab thiab cov qauv ua haujlwm ib ntus.
Lub tsev lub hnab ntawv & Cov ntsiab lus thib ob:
Lintels tshaj qhov rais thiab qhov rooj hauv masonry tsim.
Portal thav duab rau warehouses thiab ua liaj ua teb vaj tse (qhov twg spans / loads yog nruab nrab).
Txhawb cov qauv rau facades, cladding, thiab hnub ci vaj huam sib luag arrays.
Ua ntej-fabricated Components:
Trusses, lattice girders, thiab modular units uas welded tawm -site thiab sib sau ua ke ntawm qhov chaw.
Technical Specifications rau Kev Siv Phaj
| Khoom | Kev qhia tshwj xeeb (EN 10025-2) rau daim hlau | Kev tsim kho-Kev cuam tshuam tshwj xeeb |
|---|---|---|
| Yield zog (ReH) | 275 MPa (t Tsawg dua lossis sib npaug li 16mm) 255 MPa (16mm Cov neeg tsim qauv yuav tsum siv tus nqi raug rau lawv cov phaj tuab. Thicker daim hlau muaj qis dua lav lub zog. |
|
| Tensile zog (Rm) | 410 - 560 MPa | Muab qhov zoo tshaj plaws ntawm kev nyab xeeb tiv thaiv qhov kawg tsis ua haujlwm. |
| Elongation (A₅) | Ntau dua lossis sib npaug li 23% (t Tsawg dua lossis sib npaug li 40mm) | High ductility yog qhov tseem ceeb rau kev nthuav dav seismic thiab lub zog nqus hauv cov xwm txheej dynamic. |
| Impact Toughness | Ntau dua lossis sib npaug li 27 J ntawm +20 degree | Haum rau feem ntau temperate ib puag ncig. TSIS tsim nyog rau cov qauv tseem ceeb hauv kev ruaj ntseg sub- xoom kub yam tsis muaj kev txiav txim siab tshwj xeeb. |
| Common Thickness Range | Feem ntau los ntawm 3 hli mus txog 100 hli (muaj qhov sib txawv). | Npog feem ntau ntawm cov phaj xav tau hauv kev tsim kho. |
Kev txiav txim siab tseem ceeb rau kev siv kev tsim kho
1. Kev txwv kub:
S275JR tsis yog qhov qis -kub steel. Rau cov qauv tseem ceeb raug rau lub caij ntuj no kub qis dua 0℃, tshwj xeeb tshaj yog nyob rau hauv cua - raug los yog dynamically loaded daim ntaub ntawv, ib tug tougher subgrade yuav tsum tau teev tseg:
S275J0 (Ntau dua lossis sib npaug rau 27J ntawm 0 degree)
S275J2 (Ntau dua lossis sib npaug rau 27J ntawm -20 degree) - Qhov no yog qhov tsawg kawg nkaus pom zoo rau kev ua haujlwm sab nraum zoov hauv ntau cov lej European rau huab cua txias.
2. Kev tiv thaiv corrosion:
S275JR tsis muaj qhov nruab nrab atmospheric corrosion kuj. Rau ntev - lub sij hawm durability, ib tug tiv thaiv system yog yuav tsum tau:
Paint Systems: Feem ntau siv rau lub tsev thav duab.
Kub-Dip Galvanizing: Zoo heev rau kev tuav sab nraum zoov, balconies, kis tau tus yees, thiab kev tsim kho vaj tse. S275JR yog qhov zoo - haum rau cov txheej txheem no.
Weathering Steel Alternative: Rau cov ntawv tsis pleev xim, xav txog S355J2WP (Cor- kaum hom) hloov.
3. Cov kev coj ua zoo tshaj plaws:
Txawm hais tias weldability zoo heev, ua raws li cov txheej txheem:
Use low-hydrogen electrodes for thick sections (>25mm) los yog tswj tej yam kev mob.
Ua kom huv, qhuav hauv paus hlau kom tsis txhob muaj porosity.
Rau cov pob qij txha nruj heev, qhov tsawg kawg nkaus preheat ntawm 50-75℃tej zaum yuav muaj kev ceev faj txawm tias tsis tau cai lij choj.
4. Cov ntaub ntawv zoo:
Nco ntsoov thov daim ntawv pov thawj zeb (EN 10204 Hom 3.1 lossis 3.2). Qhov no txheeb xyuas cov phaj cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab, ua kom nws ua tau raws li S275JR specification rau koj qhov project.
Cov ntsiab lus
S275JR steel phaj yog lub neej ntawd, kev xaiv kev lag luam rau cov phiaj xwm dav dav uas lub zog siab tsis yog thawj tus tsav tsheb. Nws qhov yooj yim tsis sib xws ntawm kev tsim ua rau nws zoo tagnrho rau qhov loj ntawm cov phiaj sib txuas, cov hlua khi, cov kev txhawb nqa theem nrab, thiab cov qauv teeb pom kev zoo pom hauv txhua qhov kev tsim kho. Txawm li cas los xij, nws cov kev txwv hais txog qhov qis -kub toughness yuav tsum tau saib xyuas, thiab qhov tsim nyog subgrade (J0 lossis J2) yuav tsum raug xaiv rau kev siv cov qauv hauv cov huab cua txias.
