S275J2 H Beam yog tsim tshwj xeeb los tswj kev ua haujlwm ruaj khov nyob rau hauv qis - qhov kub thiab txias mus txog -20 degree, ua rau nws yog qhov kev xaiv zoo rau cov qauv hlau raug huab cua txias lossis kub hloov pauv sai.
Raws li cov kws tshaj lij steel chaw tsim khoom thiab cov chaw muag khoom, GNEE muab S275J2 H Beams nrog kev ruaj khov zoo, kev tswj hwm tshuaj nruj, thiab cov khoom siv kho kom zoo sib xws rau kev xav tau cov haujlwm ua haujlwm.
S275J2 H Beam
Nyob rau hauv thawj theem ntawm kev tsim, S275J2 steel tag nrho txiav txim siab txog kev nyab xeeb ntawm cov qauv hauv qhov chaw huab cua. Cov qib no tau siv dav hauv high-latitude industrial vaj tse, lub zog xa hluav taws xob, thiab cov khoom siv pabcuam ntawm cov chaw sab nrauv, qhov twg qis- qhov kub thiab txias cuam tshuam yog qhov tseem ceeb.
Piv nrog rau cov qauv hlau zoo tib yam, S275J2 H Beam txo qhov kev pheej hmoo ntawm cov pob txha tawg thaum cov qauv raug rau cov khoom siv hluav taws xob los yog qhov kub thiab txias poob, kom ntseeg tau ntev - lub sijhawm ua haujlwm kev ntseeg tau.
Vim li cas thiaj xaiv S275J2 H Beam rau Cov Cuab Yeej Cuab Yeej Cuab Yeej
Sib npaug zog thiab yas ntawm S275J2 H Beam
S275J2 H Beam muaj qhov tsawg kawg nkaus tawm lub zog ntawm 275 MPa, uas yog txaus rau feem ntau cov qauv kev siv xws li kev lag luam thav duab, platforms, thiab nruab nrab -load- bearing Cheebtsam.
Nyob rau tib lub sijhawm, nws qhov qis- alloy muaj pes tsawg leeg ua kom cov yas deformation zoo, tso cai rau cov hlau mus rau:
- Absorb zog los ntawm deformation nyob rau hauv overload
- Muab cov cim ceeb toom pom ua ntej ua tsis tiav
- Tsis txhob tam sim ntawd brittle puas
Qhov kev sib npaug ntawm lub zog thiab kev ua haujlwm yog qhov tseem ceeb rau kev nyab xeeb -cov qauv tseem ceeb ua haujlwm hauv thaj chaw txias.
Txhim khu kev ntseeg qis-Tsub Impact Toughness ntawm -20 degree
Cov chav kawm "J2" cuam tshuam yog qhov tseem ceeb uas sib txawv S275J2 los ntawm cov qauv hlau zoo tib yam. Nws lav qhov tsawg kawg nkaus qhov yuav tsum tau muaj zog ntawm -20 degree, kom ruaj khov tawv txawm nyob rau hauv huab cua hnyav.
Cov cuab yeej no zoo txo cov kev pheej hmoo los ntawm:
Qhov kub thiab txias -induced toughness poob
Brittle cracking nyob rau hauv lub caij ntuj no tej yam kev mob
Sudden tsis ua hauj lwm nyob rau hauv dynamic los yog cuam tshuam loads
Rau cov qauv raug cuam tshuam rau qhov hloov pauv ntawm lub caij ntuj sov, S275J2 H Beam muab kev txhim kho ntev - lub sijhawm kev nyab xeeb.
Chemical Composition Control ntawm S275J2 H Beam
Los ntawm kev sib ntxiv ntawm kab alloying ntsiab lus thiab optimized dov txheej txheem, S275J2 steel ua tiav cov qauv ua kom zoo zoo thiab cov qauv microstructure. Qhov no txhim kho kev tiv thaiv tawg thiab qis -kub kev ua haujlwm.
Cov tshuaj muaj pes tsawg leeg ntawm S275J2 H Beam (%)
| Element | C | Mn | Si | P (max) | S (max) |
|---|---|---|---|---|---|
| S275J2 | Tsawg dua los yog sib npaug li 0.20 | Tsawg dua lossis sib npaug li 1.50 | Tsawg dua los yog sib npaug li 0.55 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 |
Tsawg sulfur thiab phosphorus cov ntsiab lus pab rau:
Txo temper brittleness
Txo cov cua sov kom tsawg- cuam tshuam thaj chaw embrittlement
Txhim kho zuag qhia tag nrho weld kev cia siab
Mechanical Properties ntawm S275J2 H Beam
Mechanical Performance Table
| Khoom | Tus nqi |
|---|---|
| Yield zog | Ntau dua lossis sib npaug li 275 MPa |
| Tensile zog | 410-560 MPa |
| Elongation | Ntau dua lossis sib npaug li 23% |
| Impact Test | Ntau dua lossis sib npaug li 27 J ntawm -20 degree |
Cov khoom siv kho tshuab no ua kom S275J2 H Beam ua tau zoo nyob rau hauv ob qho tib si zoo li qub thiab dynamic load.
Dimensional Advantages ntawm S275J2 H Beams hauv kev tsim qauv
Efficient Hla-Section Design of H Beams
H Beams (tseem hu ua I Beams) cov khoom siv hauv cov flanges sab sauv thiab qis, txuas nrog lub vev xaib nyias. Daim ntawv qauv no muab:
High section modulus
Zoo heev bending kuj
Kev siv cov khoom siv tau zoo
Raws li qhov tshwm sim, S275J2 H Beam ua tiav kev thauj khoom siab -cov kabmob muaj peev xwm nrog txo qhov hnyav, txhawb nqa lub cev hnyav tsis tau muaj zog.
Common Size Range ntawm S275J2 H Beam
| Qhov siab (mm) | Flange Dav (mm) | Web Thickness (hli) | Flange Thickness (hli) |
|---|---|---|---|
| 100–600 | 100–300 | 5–12 | 7–25 |
Customized qhov ntau thiab tsawg tuaj yeem muab tau raws li qhov xav tau ntawm qhov project.
Vuam thiab Fabrication Performance ntawm S275J2 H Beam
S275J2 H Beam nta qhov sib npaug ntawm cov pa roj carbon zoo, ua kom muaj kev sib tw zoo siv cov txheej txheem vuam xws li:
Phau ntawv arc vuam
Gas{0}}shielded vuam
Submerged arc vuam
Nws cov hardness nruab nrab kuj txhawb kev khoov txias, txiav, drilling, thiab ntawm -qhov chaw tsim khoom, ua rau kev txhim kho ntau dua thiab yoog raws.
Kev lag luam tus nqi ntawm S275J2 H Beam nyob rau hauv Ntev-Lub Sij Hawm Ua Haujlwm
Txawm hais tias S275J2 H Beam muaj tus nqi ntawm cov khoom siv ntau dua li cov qhab nia zoo tib yam, nws txoj kev ntseeg siab, kev ua haujlwm ntev, thiab kev pab cuam lub neej ntev heev txo cov nqi kho thiab hloov cov nqi.
Rau cov haujlwm uas nkag mus tau txwv lossis kev saib xyuas yog kim, S275J2 H Beam muab cov txiaj ntsig zoo tshaj plaws ntawm lub neej thiab kev ua haujlwm tag nrho.
Nrog zoo heev qis -kub toughness, sib npaug txhua yam khoom, thiab npaum H Beam geometry, S275J2 H Beam yog ib qho kev daws teeb meem rau cov txheej txheem ua haujlwm hauv qhov chaw txias lossis qhov xav tau.
Raws li cov chaw tsim khoom ntseeg siab, GNEE muab cov khoom ruaj khov -S275J2 H Beams zoo nrog kev txhawb nqa tag nrho thiab cov ntaub ntawv tshuaj xyuas.
Tiv tauj peb rau qhov tseeb S275J2 H Beam daim ntawv teev npe thiab kev txhawb nqa qhov project.
Qhov txawv ntawm S275JR thiab S275J2 yog dab tsi?
Qhov sib txawv tseem ceeb ntawm peb S275 steel nyob rau hauv lawv qhov kub thiab txias: 20℃ntawm S275JR steel, -20℃ntawm S275J2 steel thiab 0℃ntawm S275J0 steel. Dab tsi yog cov khoom siv S275J2? S275J2 yog cov pa roj carbon tsawg, siab tensile lub zog cov qauv hlau uas tuaj yeem nkag tau yooj yim welded rau lwm cov hlau weldable.
S235J2 cov khoom sib npaug yog dab tsi?
EN10025 S235J2 yog qib carbon steel nrog cov yam ntxwv zoo. Qee cov ntaub ntawv sib npaug sib npaug rau EN10025 S235J2 carbon steel phaj suav nrog: ASTM A36: Cov qauv siv dav siv hauv Asmeskas uas muaj cov khoom zoo sib xws ntawm lub zog tensile thiab lub zog tawm los.
Lub ntsiab lus ntawm s275j2 yog dab tsi?
"S" txhais tau hais tias nws yog cov qauv hlau, thaum "275" qhia qhov tsawg kawg nkaus lub zog ntawm 275 megapascals. "J2" txhais tau hais tias cov hlau muab ib qho kev cuam tshuam tsawg kawg nkaus ntawm 27 joules ntawm -20 degree, ua rau nws haum rau cov huab cua txias.
JR sawv cev rau dab tsi hauv S235JR?
Cov tsiaj ntawv S txhais tau hais tias cov hlau phaj yog cov qauv. Tus naj npawb 235 txhais tau tias, steel lub zog tawm los. Lo lus JR sawv cev rau cov qib steel tau dhau los ntawm Charpy cuam tshuam kev xeem thiab yog qhov zoo. S235JR yog qhov tshwj xeeb muab rau nws, nrog rau txhua lub cim qhia qee yam txawv.
Dab tsi yog qhov sib npaug rau s235jr2?
EN 10025-2 S235JR yog sib npaug rau ASTM A283 Gr C, DIN ST37-2, JIS SS330, thiab GB Q235B, nrog rau lub zog nruab nrab thiab weldability rau kev tsim kho.