Thaum sib piv A992 H Beamnrog European cov qauv steel qib xws li S355 (xws li S355JR thiab S355J2), ntau tus neeg yuav khoom pom tias ob qho tib si cov khoom sib koom ua ke zoo sib xws.
A992 H Beam
Txawm li cas los xij, hauv kev siv engineering tiag tiag, lawv qhov sib txawv mus dhau ntawm cov cuab yeej siv tshuab yooj yim thiab txuas mus rau cov txheej txheem txheej txheem, cuam tshuam cov kev xav tau ntawm lub zog, thiab qhov project tsim nyog.
Lub zog sib piv ntawm A992 H Beam thiab S355 Steel
Nyob rau theem pib tshaj plaws, ob qho khoom siv yog tsim los ua kom tau raws li qhov xav tau ntawm lub zog zoo sib xws. Qhov no yog vim li cas lawv feem ntau suav hais tias hloov pauv tau hauv qee qhov haujlwm.
| Khoom | A992 H Beam | S355 Hlau (EN 10025) |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug rau 345 MPa (50 ksi) | Ntau dua lossis sib npaug li 355 MPa |
| Tensile zog | 450-620 MPa | 470-630 MPa |
Txawm hais tias S355 qhia tau hais tias muaj zog dua nominal yield zog, qhov sib txawv yog qhov tsawg kawg nkaus hauv kev siv tswv yim. Los ntawm kev tsim qauv tsim, ob qho tib si cov ntaub ntawv tuaj yeem ua tau raws li cov khoom thauj feem ntau -cov kev cai bearing.
A992 H Beam vs S355JR / S355J2
Qhov sib txawv tseem ceeb tshaj yog nyob rau hauv kev cuam tshuam kev faib tawm, tshwj xeeb tshaj yog nyob rau hauv qis - qhov kub thiab txias.
Cov qauv European (EN 10025) faib S355 rau hauv ntau qhov subgrades raws li Charpy V-qhov ntsuas qhov cuam tshuam:
| Qib | Yuav tsum tau xeem Impact |
|---|---|
| S355 JR | 27J ntawm +20 degree |
| S355J0 | 27j0 qib |
| S355J2 | 27J ntawm -20 degree |
Qhov no txhais tau hais tias S355 muab qhov tseeb thiab yuav tsum muaj kev cuam tshuam rau cov qib toughness, uas yog qhov tseem ceeb hauv qhov chaw txias lossis cov qauv dynamically loaded.
Nyob rau hauv sib piv, A992 H Beam tsis tas yuav tsum muaj tag nrho cov kev ntsuam xyuas los ntawm lub neej ntawd tshwj tsis yog tau teev nyob rau hauv qhov project yuav tsum tau.
| Yam | A992 H Beam | S355 hlau |
|---|---|---|
| Impact Test | Optional (yog tias muaj) | Yuav tsum tau ua raws qib |
| Kev faib tawm | Tsis subdivided | JR / J0 / J2 qib |
| Tsawg-Kev siv kub | Xav tau specification | Paub meej |
Qhov sib txawv no tseem ceeb rau cov neeg yuav khoom:
Yog tias koj qhov project cuam tshuam nrog qis - qhov kub thiab txias ib puag ncig lossis kev ua raws EN nruj, S355J2 yuav xav tau.
A992 MTC
S355JR MTC
Standard System thiab Ntiaj teb no daim ntawv thov sib txawv ntawm A992 H Beam thiab S355 beam
Lwm qhov kev sib txawv tseem ceeb yog qhov txheej txheem nws tus kheej.
| Yam | A992 H Beam | S355 hlau |
|---|---|---|
| Txuj | ASTM (USA) | EN 10025 (Tebchaws Europe) |
| Daim ntawv thov tseem ceeb | Tebchaws Asmeskas, thoob ntiaj teb EPC cov haujlwm | Teb chaws Europe, EU project |
| Daim ntawv pov thawj | ASTM -raws li | CE / EN ua raws |
Hauv cov haujlwm thoob ntiaj teb, tshwj xeeb tshaj yog cov hauv qab Asmeskas cov lej, A992 H Beam feem ntau tau teev tseg raws li cov khoom siv rau kev dav flange beams. Nws tau txais dav hauv EPC cov haujlwm thoob ntiaj teb thiab muaj kev sib raug zoo nrog cov qauv tsim.
Cov qauv kev ua tau zoo ntawm A992 H Beam
Tshaj li lub zog, cov kws tsim qauv tsim qauv kuj xav txog ductility thiab deformation muaj peev xwm. Ib qho txiaj ntsig ntawm A992 H Beam yog nws cov txiaj ntsig tswj hwm - rau - tensile piv, uas txhim kho kev kwv yees hauv kev coj tus cwj pwm.
| Qhov xwm txheej | A992 H Beam | S355 hlau |
|---|---|---|
| Yield Ratio Control | Tsawg dua lossis sib npaug rau 0.85 (tswj) | Tsis txwv nruj |
| Ductility | Siab | Zoo |
| Kev ruaj ntseg | Zoo heev | Zoo |
Vim li cas thiaj xaiv Gnee A992 H Beam rau Ntiaj Teb Cov Haujlwm
Los ntawm qhov kev xav ntawm kev yuav khoom, kev xaiv ntawm A992 thiab S355 feem ntau nyob ntawm qhov project qauv. Txawm li cas los xij, ntau tus neeg cog lus thoob ntiaj teb nyiam A992 H Beam vim nws qhov sib xws thiab kev ntseeg tau ntawm cov qauv.
Ntawm Gnee, peb muab:
| Qhov zoo | Tau txais txiaj ntsig |
|---|---|
| ASTM Daim Ntawv Pov Thawj A992 | Ua tau raws li qhov xav tau ntawm qhov project thoob ntiaj teb |
| Stable Mechanical Properties | Predictable kev ua tau zoo |
| Cov khoom siv dav dav | Kev txhawb nqa qhov project yooj yooj yim |
| Kev Pabcuam | Kev taw qhia txog kev xaiv cov khoom |
Qhov no ua kom cov neeg siv khoom ntseeg siab siv A992 H Beam hauv kev xav tau cov qauv siv.
Txawm hais tias A992 H Beam thiab S355 steel sib koom ua ke muaj zog zoo sib xws, lawv qhov sib txawv ntawm qhov sib txawv ntawm qhov hnyav thiab cov qauv txheej txheem ua rau lawv haum rau ntau hom haujlwm.
- Rau EN-tus qauv lossis qis- cov ntawv thov kub → S355J2 feem ntau xav tau
- Rau ASTM-raws li lossis thoob ntiaj teb EPC cov haujlwm → A992 H Beam yog qhov nyiam
Kev xaiv tus qauv tsim nyog ua kom muaj kev ua raws, kev nyab xeeb, thiab ntev - lub sijhawm ua tiav qhov project.
Hu rau tam sim no kom tau txais A992 thiab S355 H Beam Quote
Qhov txawv ntawm A992 thiab Qib 50 yog dab tsi?
A992 feem ntau muaj raws li cov qauv duab, tsis yog daim hlau lossis cov kab tuav, thiab yog tus qauv rau dav - flange beams hauv Teb Chaws Asmeskas Qhov Tseem Ceeb Qhov txawv:A572 Gr 50 yog ib qho kev qhia dav dav rau ntau hom ntawv thiab kev siv cov qauv siv dav dav, thaum A992 yog tsim rau dav -flange duab hauv kev tsim kho vaj tse nrog cov khoom txhim kho..
Lub zog kawg ntawm A992 yog dab tsi?
Tensile yield zog, 345 MPa (50 ksi); tensile lub zog kawg,450 MPa (65 ksi); strain rau rupture (qee zaum hu ua elongation) nyob rau hauv ib tug 200-mm-ntev kuaj qauv, 18%; strain rau rupture nyob rau hauv ib tug 50-mm-ntev qauv kuaj, 21%. ASTM A992 yog tam sim no muaj ntau hom hlau rau cov qauv dav-flange kab teeb.
Qhov txawv ntawm A992 thiab A572 yog dab tsi?
A992 steel nthuav tawm me ntsis siab dua (4-7% qhov sib txawv) DIF rau cov khoom muaj zog tshaj A572-50, tab sis tsawg dua 1% sib txawv rau UTS. A572-50 steel tau nthuav tawm qhov nce ntawm cov khoom muaj zog nce mus txog 35% thiab qhov kawg tensile zog mus txog 20% raws li tus nqi strain nce.