ASTM A992 dav - flange kab teebyog cov txheej txheem steel niaj hnub nrog tus yam ntxwv H-puab thiab sib npaug flanges, tsim los txhim kho lub zog, ductility, thiab qhov hnyav. Paub hauv kev lag luam li A992 kab teeb, lawv tau siv dav hauv kev lag luam, kev lag luam, thiab kev tsim kho vaj tse.
Gnee Steel muab cov khoom siv siab - zoo A992 dav - flange beams, tau txais thoob ntiaj teb kom ua tau raws li ASTM cov qauv thiab tsim los txhawb nqa hnyav - lub luag haujlwm ntawm cov khoom siv.
Cov khoom sib xyaw thiab cov cuab yeej cuab tam ntawm A992 Beams
| Khoom | Specification (A992) |
|---|---|
| Hom hlau | HSLA (High-Lub zog qis-Alloy) |
| Yield zog | 50 ksi (~ 345 MPa) |
| Tensile zog | 65-80 ksi (~ 450-550 MPa) |
| Elongation | 18–21% |
| Alloying Elements | Vanadium, Columbium, Nickel, Chromium, Tooj, Molybdenum |
| Weldability | Zoo heev, haum rau txhua txoj kev vuam |
| Ductility | Siab, haum rau seismic thiab dynamic loads |
| Formability | Zoo, tuaj yeem txiav, drilled, lossis machined |
Faj seeb: A992 beams yog engineered los muab lub zog siab - rau - hnyav piv, ua rau lawv sib zog tshaj qhov sib npaug A36 los yog A572 structural steel beams thaum tuav tib lub load- bearing muaj peev xwm.
Qhov loj me thiab qhov ntau thiab tsawg ntawm A992 Dav -Flange Beams
| Lub npe Beam | Qhov tob (hli / mm) | Flange Dav (hauv / mm) | Web Thickness (hauv / mm) | Flange Thickness (hauv / mm) | Qhov hnyav (lb / ft kg / m) |
|---|---|---|---|---|---|
| W8x18 | 8.06 / 205 | 8.03 / 204 | 0.34 / 8.6 | 0.46 / 11.7 | 18 / 26.7 |
| W10x22 | 10.02 / 254 | 10.02 / 254 | 0.36 / 9.1 | 0.52 / 13.2 | 22 / 32.6 |
| W12x26 | 12.12 / 308 | 12.06 / 306 | 0.40 / 10.2 | 0.60 / 15.2 | 26 / 38.6 |
| W14x34 | 14.02 / 356 | 14.02 / 356 | 0.44 / 11.2 | 0.68 / 17.3 | 34 / 50.4 |
| W16x36 | 16.02 / 407 | 16.00 / 406 | 0.46 / 11.7 | 0.75 / 19.1 | 36 / 53.4 |
| W18x40 | 18.00 / 457 | 16.00 / 406 | 0.48 / 12.2 | 0.78 / 19.8 | 40 / 59.3 |
| W21x44 | 21.02 / 533 | 16.00 / 406 | 0.50 / 12.7 | 0.80 / 20.3 | 44 / 65.2 |
Kev cai qhov ntev muaj nyob rau ntawm kev thov kom ua tau raws li qhov xav tau tshwj xeeb ntawm qhov project.
Qhov zoo ntawm A992 Dav -Flange Beams
Siab zog - rau - Qhov hnyav piv
A992 beams txhawb nqa hnyav thaum txo cov hlau hnyav txog li 15-20% piv rau cov qauv A36 lossis A572 kab ntawm qhov sib xws.
Zoo tagnrho rau ntev- txuas txuas, siab- cov tsev nce siab, thiab cov qauv kev lag luam.
Zoo heev Ductility thiab Seismic Performance
High elongation thiab tswj alloying ntsiab (vanadium, columbium) tso cai rau lub nqaj kom deform nyob rau hauv kev ntxhov siab heev es tsis txhob fracturing.
Pom zoo rau av qeeg- thaj chaw uas muaj kev cuam tshuam thiab cov ntawv thov thauj khoom.
Weldability thiab Fabrication
Kev sib xyaw tshuaj muaj pes tsawg leeg ua kom yooj yim vuam, txiav, thiab machining.
Tau tshaj MIG, TIG, thiab arc vuam rau prefabricated los yog ntawm -site qauv.
Versatility hauv Kev Tsim Kho
Tsim nyog rau lub Hoobkas ua haujlwm, tshav dav hlau hangars, txuas hniav, chaw cia khoom, siab -cov tsev nce siab, thiab crane khiav.
Loj flange nto thaj chaw yooj yim rau kev sib txuas thiab bolting.
Tus nqi -Kev ua tau zoo
Txo cov hlau hnyav, qhov yooj yim profile, thiab muaj dav dav ua rau A992 beams pheej yig dua rau cov haujlwm loj -.
Daim ntawv thov ntawm A992 Wide-Flange Beams
| Daim ntawv thov | Kev piav qhia |
|---|---|
| Cov tuam tsev muaj | Lub moj khaum txhawb nqa cov tshuab hnyav thiab khoom siv platforms |
| Tshav dav hlau Terminals & Hangars | Ntev - ncua cov qauv yam tsis muaj kab nruab nrab |
| Cov choj | Thauj khoom-cov kab teeb thiab girders rau tsheb hnyav |
| High-Rise Buildings | Cov qauv kab thiab kab teeb nrog dynamic thiab seismic load kuj |
| Warehouses & Barns | Txhawb nqa cov khoom siv cia, nplej, lossis cov khoom siv |
| Vuam Projects | Cov duab ncaj nraim thiab thaj chaw loj loj tso cai rau kev sib dhos zoo |
A992 beams sib xyaw ua ke siab zog, ductility, thiab tus nqi -kev ua tau zoo hauv ntau yam H- zoo li profile. Nrog tensile zog ntawm 65-80 ksi, tawm los muaj zog ntawm 50-65 ksi, thiab tswj alloy muaj pes tsawg leeg, cov kab teeb no zoo tagnrho rau cov txuas hniav, siab -nce vaj tse, kev lag luam, thiab seismic-cov ntaub ntawv tiv thaiv.
Xaiv A992 dav -flange kab teeb rau koj qhov project tom ntej kom ua tiav qhov kev ua tau zoo tshaj plaws, kev ntseeg siab, thiab kev ua haujlwm tau zoo.
Q1: Dab tsi yog ASTM A992 H-Beam thiab nws txawv li cas ntawm A36 H-Beam?
ASTM A992 H-Beam yog lub siab- lub zog, qis- alloy structural steel beam feem ntau siv rau hauv lub tsev thav duab thiab txuas hniav. Piv rau A36 H-Beam, uas muaj lub zog tawm los ntawm 250 MPa, A992 muab lub zog tawm los ntau dua ntawm 345 MPa, txhim kho toughness, thiab weldability zoo dua rau kev siv cov txheej txheem niaj hnub.
Q2: Cov tshuaj muaj pes tsawg leeg ntawm ASTM A992 H-Beam yog dab tsi?
Cov tshuaj muaj pes tsawg leeg ntawm A992 suav nrog carbon Tsawg dua lossis sib npaug li 0.23%, manganese 0.50–1.50%, phosphorus Tsawg dua lossis sib npaug li 0.035%, sulfur Tsawg dua lossis sib npaug li 0.045%, thiab silicon Tsawg dua lossis sib npaug li 0.40%. A992 kuj suav nrog microalloying ntsiab xws li vanadium thiab niobium los txhim kho lub zog thiab tawv. Piv nrog rau A36, qis carbon cov ntsiab lus thiab microalloying txhim khu weldability thiab txo brittleness.
Q3: Dab tsi yog cov yam ntxwv ntawm ASTM A992 H-Beam?
A992 H-Beams muaj qhov tsawg kawg nkaus lub zog ntawm 345 MPa (50 ksi) thiab tensile zog ntawm 450-620 MPa. Qhov tsawg kawg nkaus elongation nyob rau hauv 200 mm yog 18%, thiab Charpy cuam tshuam toughness yog txhim kho rau qis -kub siv. Hauv kev sib piv, A36 beams tsis tshua muaj zog tab sis me ntsis ductile, ua rau lawv tsim nyog rau cov tswv cuab ntawm cov qauv tsis tseem ceeb.
Q4: Qhov luaj li cas thiab qhov ntev npaum li cas rau ASTM A992 H-Beam?
A992 H-Beams muaj nyob rau hauv qhov ntau thiab tsawg ntawm W8x10 txog W44x335 (los yog zoo sib xws, nyob ntawm lub zeb). Standard tolerances muaj xws li ± 3% rau flange thiab web thickness thiab ± 6 hli rau beam qhov tob. Qhov kam rau ua yog piv rau A36 tab sis xyuas kom meej qhov sib xws rau siab - cov ntawv thov muaj zog qhov twg cov khoom xa tawm meej yog qhov tseem ceeb.
Q5: Puas tuaj yeem ASTM A992 H-Beam tau welded thiab fabricated yooj yim?
Yog lawm. A992 H-Beams yog tsim los rau siab weldability nrog cov qauv txheej txheem (SMAW, GMAW, FCAW) yam tsis muaj preheating nyob rau hauv ib txwm tej yam kev mob. Microalloying thiab cov ntsiab lus carbon tsawg txo qhov kev pheej hmoo ntawm kev tawg thaum vuam. Bending thiab drilling kuj tseem ua tau, txawm hais tias lub vojvoog nruj yuav tsum ua raws li ASTM cov lus qhia.
Q6: Kev sim ua dab tsi ntawm ASTM A992 H-Beams?
Cov kev ntsuam xyuas muaj xws li kev ntsuas tensile, kuaj khoov, tshuaj ntsuam xyuas muaj pes tsawg leeg, thiab kev tshuaj xyuas qhov muag. Mill Test Reports (MTRs) muab cov ntaub ntawv. Charpy impact tests tej zaum yuav xav tau rau thaj chaw txias. Piv nrog rau A36, A992 yuav tsum muaj kev txheeb xyuas nruj dua ntawm cov khoom siv kho tshuab vim muaj zog ntau dua.
Q7: Dab tsi yog cov ntawv thov rau ASTM A992 H-Beams?
A992 H-Beams yog siv dav hauv steel- cov tsev ua vaj tse, ntev- txuas txuas, cov chaw tsim khoom, thiab cov qauv siab - nce siab. A36 beams tseem tuaj yeem siv rau hauv kev sib tw thib ob lossis tsawg -load daim ntawv thov, tab sis A992 yog qhov zoo dua qhov muaj zog dua - rau - qhov hnyav piv thiab toughness yog qhov tseem ceeb.
Q8: Yuav ua li cas tiv thaiv corrosion rau ASTM A992 H-Beams?
A992 beams yog muab rau hauv zeb tiav, nrog rau kev xaiv galvanization lossis pleev xim rau qhov chaw corrosive. Qhov zoo thiab qhov ncaj yog qhov tseem ceeb rau kev vuam thiab bolting. Txoj kev tiv thaiv corrosion zoo ib yam li A36, tab sis A992 beams feem ntau xav tau kev saib xyuas ntxiv vim lawv siv rau hauv qhov raug lossis siab - cov qauv nce.
Q9: Ntev npaum li cas thiab txoj kev xa khoom rau ASTM A992 H-Beams yog dab tsi?
Standard ntev yog feem ntau 6-12 meters, nrog rau kev cai ntev muaj. Beams yog bundled rau kev thauj mus los thiab tshuaj xyuas qhov ncaj. Dimensional raug yog ib qho tseem ceeb los xyuas kom meej lub rooj sib txoos thiab load- bearing kev ua tau zoo.
Q10: Puas yog ASTM A992 H-Beams tuaj yeem siv rau qhov kub thiab txias?
A992 H-Beams yog haum rau qhov kub thiab txias me ntsis. Kev cuam tshuam hnyav ua rau lawv muaj kev nyab xeeb dua rau cov huab cua txias dua piv rau A36. Rau qhov qis lossis siab siab - qhov kub thiab txias ib puag ncig, cov kws ua haujlwm yuav xav tau kev kuaj xyuas ntxiv lossis xav txog lwm qib tshwj xeeb steel.