Thaum tsim ib lub tsev loj -span steel qauv warehouse, kev xaiv ntawm cov qauv steel yog qhov kev txiav txim siab tseem ceeb tshaj plaws rau kev nyab xeeb thiab nyiaj txiag. Thaum muaj ntau qib,ASTM A992 H Beamtau tshwm sim raws li qhov xav tau tshwj xeeb rau dav -flange (H-}beam) seem thoob ntiaj teb.
ASTM A992 H Beam
Hauv phau ntawv qhia no, peb txheeb xyuas vim li cas A992 yog qhov kev xaiv zoo tshaj plaws rau kev tsim kho tsev rau khoom niaj hnub thiab yuav xaiv qhov zoo li cas rau koj qhov project.
ASTM A992 yog dab tsi?
ASTM A992 tau tshaj tawm thaum xyoo 1990s tshwj xeeb rau kev tsim cov ncej. Tsis zoo li qub A36 (tus qauv carbon steel), A992 yog ibSiab-Lub zog qis-Alloy (HSLA)hlau.
ASTM A992 H Beam
Nws tau tsim kho kom muaj lub zog zoo dua - rau- qhov hnyav piv thiab txhim kho ductility, ua rau nws tam sim no "default" rau W-cov duab (H-beams) hauv North America thiab ntau lub khw thoob ntiaj teb.
Cov txiaj ntsig tseem ceeb rau kev tsim kho warehouse
A. Superior Strength-rau-Weight Ratio
A992 muaj qhov tsawg kawg nkaus lub zog ntawm 50 ksi (345 MPa), piv rau 36 ksi ntawm tsoos A36 steel.
Qhov cuam tshuam: Koj tuaj yeem siv cov kab teeb sib zog los txhawb nqa tib lub zog. Hauv 5,000 sqm warehouse, hloov mus rau A992 tuaj yeem txo tag nrho cov hlau tonnage los ntawm 15% mus rau 20%, txo cov khoom thiab cov nqi thauj khoom.
B. Tswj Chemistry kom zoo dua Weldability
A992 steel muaj kev tswj hwm nruj nruj Carbon sib npaug (CE).
Qhov cuam tshuam: Nws muab cov weldability zoo heev. Rau cov phiaj xwm warehouses uas muaj hnyav ua ntej-fabrication los yog ntawm- qhov chaw vuam ntawm cov pob qij txha, A992 txo qhov kev pheej hmoo ntawm vuam tawg thiab txo qis qhov xav tau rau kim ua ntej- cua sov, ua kom lub sij hawm tsim kho.
C. Predictable Performance (Yield-rau-Tensile Ratio)
ASTM A992 yuav tsum muaj cov txiaj ntsig siab tshaj plaws - rau - tensile piv ntawm 0.85.
Qhov cuam tshuam: Qhov kev kwv yees no yog qhov tseem ceeb rau kev tsim seismic. Yog tias lub tsev khaws khoom nyob rau hauv av qeeg -nruab siab lossis siab - thaj chaw cua (xws li Nyab Laj lossis Tebchaws Meskas Sab Hnub Poob), A992 ua kom cov qauv yuav deform yam xyuam xim es tsis ua rau muaj kev ntxhov siab heev.
A992 vs. A36: Kev sib piv ceev
| Khoom | ASTM A36 | ASTM A992 Cov Lus Qhia Tshwj Xeeb |
| Min. Yield zog | 36 ksg | 50 ksg |
| Daim ntawv thov zoo tshaj plaws | Phaj, Channel, Angles | Wide Flange (H-Beams) |
| Weldability | Zoo | Zoo heev (Controlled CE) |
| Muaj | Feem ntau tab sis poob qis rau W-cov duab | Kev lag luam Standard rau W-shapes |
Technical Checklist rau Buyers & Engineers
Thaum muab A992 H-Beams rau koj qhov project warehouse los ntawm ib tus neeg muag khoom suav, xyuas cov hauv qab no:
- Mill Test Certificate (MTC):Xyuas kom MTC qhia meej meej txog kev ua raws liASTM A992 Cov Lus Qhia Tshwj Xeeb.
- Dimensional Tolerances:Beams yuav tsum sib ntsibASTM A6 / A6M ASTMcov qauv rau kev ncaj, flange qaij, thiab web centering.
- Kev kho deg:Rau kev lag luam warehouses, xav txog kev thovtxhaj tshuaj- tawg (Sa 2.5)thiab zinc-nplua nuj primer los tiv thaiv corrosion thaum hla hiav txwv.
- Charpy V-Notch (CVN) Testing:Rau warehouses nyob rau hauv cov huab cua txias heev (xws li, Canada los yog Northern Europe), nug yog hais tias cov hlau ua tau raws li cov kev cai toughness ntawm tsawg kub.
Vim li cas Source Pre-Fabricated A992 Beams los ntawm Gnee?
Raws li tus kws tshaj lij hauv kev tsim steel thiab engineering, peb tsis yog muab cov hlau nyoos xwb. Peb muab qhov Project-Cov Kev Npaj Npaj:
Precision Txiav: 12kW Laser thiab pom txiav rau koj qhov ntev CAD.
Ua ntej- Drilling: Precision qhov tso rau kev sib txuas bolted, kom ntseeg tau 100% haum rau ntawm -site.
Vuam Phaj: Peb tuaj yeem ua ntej-weld stiffeners thiab kawg daim hlau rau koj H- kab teeb raws li koj cov duab kos.
Xaiv ASTM A992 rau koj lub tsev rau khoom H- kab teeb yog qhov ntse txav uas sib npaug ntawm cov qauv kev ncaj ncees nrog cov nqi ua haujlwm. Los ntawm kev xaiv rau qib siab zog, koj txuag ntawm tonnage, kev ua haujlwm, thiab kev tu lub sijhawm ntev -.
Hu rau tam sim no kom tau txais A922 H Beam Quote
