A588 Qib Ayog lub siab -lub zog, qis- alloy (HSLA) cov qauv hlau hu ua "weathering steel" (feem ntau hu ua Corten), khoom plig rau nws zoo heev atmospheric corrosion kuj, tsim ib tug ruaj khov, tiv thaiv xeb-zoo li patina, ua rau nws zoo tagnrho rau unpainted daim ntaub ntawv superior zoo li txuas hniav, vaj tse, thiab kev kho tsheb tsis tu ncua kev tsheb ciav hlau. Nws muaj qhov tsawg kawg nkaus tawm lub zog ntawm 50 ksi (345 MPa) thiab yog siv rau hauv welded, bolted, los yog riveted kev tsim kho uas durability thiab zoo nkauj tseem ceeb.
Cov yam ntxwv tseem ceeb
Corrosion Resistance: Tsim cov txheej txheem oxide tiv thaiv, ua kom qeeb ntxiv corrosion; plaub zaug tiv taus ntau dua li cov pa roj carbon steel tsis kho.
Lub zog muaj zog: Yam tsawg kawg nkaus lub zog ntawm 50 ksi (345 MPa), tso cai rau cov qauv sib dua.
Cov tsos mob: Tsim kom muaj qhov tshwj xeeb, zoo nkauj zoo nkauj xeb-zoo li ua tiav thaum raug rau cov khoom.
Daim ntawv thov: choj, vaj tse, tsheb ciav hlau, tsheb loj, tso tsheb hlau luam, thiab cov yam ntxwv ntawm vaj tse.
Qib: Muaj nyob rau hauv Qib A, B, C, thiab K, nrog Qib A feem ntau muaj cov ntsiab lus tshwj xeeb rau cov ntsiab lus xws li Manganese, Chromium, thiab tooj liab.
Dab tsi yog cov ntawv thov tseem ceeb ntawm A588 Qib A?
Cov ntawv thov tseem ceeb ntawm ASTM A588 Qib A qhov chaw ntawm cov haujlwm ua haujlwm uas nws qhov kev sib xyaw ua ke ntawm lub zog siab thiab atmospheric corrosion resistance (weathering properties) muab qhov qis -kev tu, nqi- zoo, thiab kev zoo nkauj.
Nov yog nws cov kev siv tseem ceeb:
1. Cov choj & kev loj cov qauv
Nov yog daim ntawv thov classic. Nws yog dav siv rau girders, arches, trusses, thiab kev txhawb nqa hauv cov choj. Cov huab cua huab cua ua kom ruaj khov, tiv thaiv xeb patina, tshem tawm qhov xav tau ntawm kev pleev xim thiab txo cov nqi tu lub sijhawm ntev, tshwj xeeb tshaj yog nyob rau hauv qhov nyuaj - mus rau - qhov chaw nkag.
2. Architectural & Exposed Structural Building Frames
Lub tsev thav duab, façades, thiab lub ru tsev txhawb nqa qhov tshwj xeeb, rusty-xim av patina xav tau raws li kev tsim vaj tsev tiav (nrog rau kev tsim qauv niaj hnub thiab kev lag luam).
Cov tuam tsev sib kis, cov ncej teeb, thiab cov phab ntsa suab nrov ntawm txoj kev loj.
3. Heavy Industrial & Infrastructure Kev tsim kho
Crane runways, khaws cov phab ntsa, thiab kev txhawb nqa rau cov nroj tsuag thiab cov khoom siv hluav taws xob.
Cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.
4. Sab nraum zoov Sculptures & Monuments
Txaus siab los ntawm cov kws ua yeeb yam thiab cov kws tsim vaj tsev rau nws lub ntuj tsim, hloov zuj zus zoo li qub thiab ua haujlwm ntev yam tsis muaj kev tiv thaiv txheej.
Vim li cas A588 Qib A raug xaiv rau cov ntawv thov no:
Tus Nqi Lub Neej Tsawg: Tus nqi pib siab dua A36/A572, tab sis tshem tawm cov nqi rov ua dua ntawm kev pleev xim dua li 50+ xyoo kev pab cuam lub neej.
Aesthetic Appeal: Qhov sov, lub ntiaj teb patina yog txhob txwm siv los ua qhov kawg architectural tiav.
Lub zog muaj zog: 50 ksi yam tsawg kawg nkaus lub zog tso cai rau sib dua, tsim tau zoo dua piv rau cov hlau me me.
Sustainability: Tsis muaj xim txhais tau tias tsis muaj volatile organic tebchaw (VOCs) lossis yav tom ntej tshem tawm / pov tseg cov xim hlau lead.
Cov kev txwv tseem ceeb & kev xav txog kev tsim qauv:
Tsis yog rau Ib puag ncig hnyav: Kev ua tau zoo tsis zoo nyob rau hauv ntub dej tas li, ntsev- cov huab cua hauv hiav txwv, lossis cov chaw muaj kuab paug heev yam tsis muaj kev tsim tshwj xeeb.
Kev Txhaum Cai Txhaum Cai: Cov kab xeb tuaj yeem ua rau cov pob zeb uas nyob ib sab los yog masonry; tsim yuav tsum tswj cov kua dej.
Kev kho mob pib: Lub patina yuav siv sij hawm 1-3 xyoos kom ruaj khov, thaum lub sij hawm cov dej ntws tawm ntau dua.
Hauv qhov tseem ceeb, A588 Qib A yog qhov mus- rau cov khoom siv rau cov choj kos npe, cov qauv tsim vaj tsev niaj hnub, thiab txhua qhov kev nthuav dav hlau uas tus tsim qauv xav siv lub ntuj tsim, tiv thaiv xeb txheej raws li ob qho tib si ua haujlwm thiab zoo nkauj, feem ntau nyob rau hauv dej los yog nruab nrab ib puag ncig.
1. Dab tsi yog A588 Qib A steel siv rau?
A588 Qib A feem ntau yog siv rau cov qauv siv xws li txuas hniav, cov tsev, thiab kev tsim kho sab nraum zoov qhov twg nws cov atmospheric corrosion kuj (weathering steel) muaj txiaj ntsig.
2. Lub zog tawm ntawm A588 Qib A yog dab tsi?
Qhov tsawg kawg nkaus lub zog ntawm A588 Qib A yog 50 ksi (345 MPa) rau ntu txog li 4 ntiv tes (100 hli) tuab.
3. A588 Qib A txawv li cas A572 Qib 50?
Qhov sib txawv tseem ceeb yog kev tiv thaiv corrosion: A588 Qib A yog cov huab cua huab cua uas tsim cov patina tiv thaiv, thaum A572 Qib 50 yog tus qauv siab - zog qis- alloy (HSLA) hlau xav tau xim lossis txheej rau kev tiv thaiv corrosion.
4. Puas yog A588 Qib A weldable?
Yog lawm, nws tau yooj yim weldable siv cov txheej txheem xws li SMAW, GMAW, thiab FCAW, txawm hais tias nws yuav tsum muaj kev siv hydrogen tsawg thiab tej zaum yuav xav tau cov khoom siv tshwj xeeb kom haum rau cov huab cua.
5. Dab tsi yog qhov corrosion kuj ntawm A588 Qib A?
Nws muaj kwv yees li 4-6 npaug ntawm atmospheric corrosion kuj zoo dua li cov pa roj carbon steel vim nws cov alloying ntsiab (xws li Cu, Cr, Ni), uas tsim ib tug ruaj khov, adherent xeb patina.
6. Puas yog A588 Qib A hlau yuav tsum tau pleev xim?
Tsis yog, pleev xim tsis tas yuav tsum muaj kev tiv thaiv corrosion; nws yog tsim los siv liab qab (tsis pleev xim) los ua ib qho kev tiv thaiv patina. Xim tuaj yeem siv rau kev zoo nkauj.
7. Cov tshuaj muaj pes tsawg leeg ntawm A588 Qib A yog dab tsi?
Nws muaj cov ntsiab lus alloying xws li tooj liab (Cu), chromium (Cr), thiab npib tsib xee (Ni) rau huab cua tsis kam. Cov ntsiab lus txwv: Carbon max 0.19%, Phosphorus max 0.04%, Copper 0.25-0.40%.
8. Cov European sib npaug ntawm A588 Qib A yog dab tsi?
Qhov ze tshaj plaws nyob sab Europe huab cua sib npaug yog S355J0W lossis S355J2W raws li EN 10025-5, uas muaj qhov zoo sib xws corrosion thiab lub zog.
9. A588 Qib A puas tuaj yeem siv rau hauv thaj chaw ntug dej hiav txwv?
Nws tuaj yeem siv tau, tab sis kev ua haujlwm yuav raug txo qis hauv cov ntug dej hiav txwv loj (ntsev -} nplua nuj) lossis muaj huab cua zoo heev. Cov qib tshwj xeeb xws li A588 Qib C lossis ntau dua resistant alloys feem ntau pom zoo rau cov xwm txheej zoo li no.
10. Dab tsi yog qhov tsis zoo ntawm A588 Qib A?
Muaj peev xwm tsis zoo muaj xws li: tus nqi pib siab dua li cov qauv hlau, muaj peev xwm ua rau cov dej ntws tawm ntawm cov chaw nyob ib puag ncig thaum tsim patina, thiab txo cov corrosion tsis kam nyob rau hauv ib puag ncig ntub dej los yog cov dej qab ntsev heev.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
