America Standard ASTM A588 Corten Steel Phaj Piling thiab Structural Steel Truss Choj

ASTM A588 suav nrog lub zog muaj zog qis-alloy steel qauv, daim hlau, thiab tuav rau welded, riveted, los yog bolted kev tsim kho tab sis yog npaj rau siv nyob rau hauv welded choj thiab vaj tse uas txuag nyob rau hauv qhov hnyav los yog ntxiv durability yog ib qho tseem ceeb.

ASTM A588 yog lub zog siab uas tsis tshua muaj alloy cov qauv hlau tshwj xeeb nrog lub zog siab dua thiab txhim kho atmospheric corrosion tsis kam rau cov qauv hlau zoo li cov ces kaum, channel thiab kab teeb, nrog rau cov phaj steel thiab tuav.ASTM A588 feem ntau yog siv rau:
Pedestrian Choj
Txoj Kev Loj Choj Girders thiab lwm yam txuas txuas txuas
Shipbuilding
Tank
Railcars thiab Thawv
Fencing
Duab puab

A588 specification yog npaj rau siv nyob rau hauv unpainted daim ntaub ntawv, qhov twg kev txuag nyob rau hauv qhov hnyav los yog ntxiv durability yog ib qho tseem ceeb nrog rau lub neej ntev lub sij hawm vim nws corrosion resistant zog thiab / los yog kom ua tau zoo aesthetically pleasing tsos.

Lub atmospheric corrosion kuj ntawm A588 yog qhov zoo tshaj ntawm cov hlau xws li A36 thiab A572-50 nrog lossis tsis muaj tooj liab ntxiv.Thaum tsim kom raug thiab raug rau cov huab cua, A588 yog qhov tsim nyog rau ntau daim ntawv thov hauv qhov tsis muaj xim.

ASTM A588 muaj 50ksi yam tsawg kawg nkaus yield zog thiab 70ksi yam tsawg tensile zog.

Kev faib tawm:
1. High weathering steel
Cov huab cua tiv thaiv cov qauv hlau yog ntxiv me me ntawm tooj liab, phosphorus, chromium, thiab npib tsib xee rau cov hlau los tsim cov txheej txheem tiv thaiv ntawm cov hlau sib sau los txhim kho kev ua haujlwm ntawm cov hlau tiv thaiv atmospheric corrosion.Koj tuaj yeem ntxiv me me ntawm molybdenum, niobium, cov ntsiab lus xws li vanadium, titanium thiab zirconium tuaj yeem ua kom zoo dua cov nplej, txhim kho cov khoom siv hlau, txhim kho lub zog thiab tawv ntawm cov hlau, txo qhov kev hloov pauv kub, thiab ua kom nws muaj zog. zoo dua tsis kam rau brittle puas.
2. Weathering steel rau vuam qauv
Cov ntsiab lus ntxiv rau qib steel, tshwj tsis yog phosphorus, yog qhov pib zoo ib yam li cov huab cua tiv thaiv cov qauv hlau, thiab lawv cov haujlwm zoo ib yam thiab txhim kho vuam kev ua tau zoo.

Nta:

Weathering steel muaj cov yam ntxwv ntawm toughness, yas stretching, sib sau, vuam thiab txiav, hnav tsis kam, kub tsis kam thiab qaug zog tsis kam ntawm cov hlau zoo;huab cua tsis kam yog 2-8 npaug ntawm cov pa roj carbon zoo tib yam, thiab cov txheej txheem ua haujlwm yog 1.5 ntawm cov pa roj carbon zoo tib yam.-10 zaug, txheej txheej yog 1.5-10 npaug ntawm cov pa roj carbon zoo tib yam, tuaj yeem siv rau txheej nyias, txheej txheej lossis txheej txheej yooj yim.Cov hlau no muaj cov yam ntxwv ntawm kev tiv thaiv xeb, tiv thaiv corrosion, ncua lub neej, thinning thiab noj txo, txuag zog thiab txuag hluav taws xob, uas muaj txiaj ntsig zoo rau cov tuam ntxhab thiab cov neeg siv khoom.Weathering steel muaj zoo corrosion kuj nyob rau hauv cov huab cua.Huab cua hlau tuaj yeem ua thinned, nthuav tawm lossis pleev xim yooj yim.Cov hlau uas muaj kev tiv thaiv corrosion, lub neej ntev, kev txuag hluav taws xob, kev txo qis thiab kev txhim kho kuj tseem yog lub tshuab tshiab, cov thev naus laus zis tshiab thiab cov txheej txheem tshiab uas tuaj yeem koom ua ke rau niaj hnub metallurgy, kom nws tuaj yeem txuas ntxiv txhim kho thiab tsim kho tshiab.Steel system.

Qhov zoo:

Weathering steel yog ua los ntawm cov pa roj carbon zoo tib yam nrog me me ntawm corrosion-resistant ntsiab xws li tooj liab thiab npib tsib xee.Nws muaj cov yam ntxwv ntawm steel lub zog, ductility, sib sau, vuam, puas, kub kub, qaug zog, thiab lwm yam.;huab cua tsis kam yog 2 ~ 8 ntawm cov pa roj carbon zoo tib yam Cov txheej txheem kev ua haujlwm yog 1.5 ~ 10 npaug ntawm cov pa roj carbon zoo tib yam, uas tuaj yeem siv rau hauv cov txheej nyias nyias, liab qab lossis yooj yim txheej.Cov hlau muaj cov yam ntxwv ntawm xeb tsis kam, corrosion kuj thiab lub neej ntev ntawm cov khoom, thinning thiab noj txo, thiab cov yam ntxwv ntawm kev ua haujlwm thiab txuag hluav taws xob, uas muaj txiaj ntsig zoo rau cov tuam txhab thiab cov neeg siv khoom.

Daim ntawv thov:

Kev siv cov huab cua tiv thaiv cov qauv hlau zoo dua li huab cua tsis kam hlau rau welded qauv vim nws cov atmospheric corrosion kuj.Nws yog tsuas yog siv rau bolting, riveting thiab vuam yam ntxwv qhov chaw rau tsheb, ntim, tsev, yees thiab lwm yam lug siv.Thaum siv los ua cov txheej txheem welded, lub thickness ntawm cov hlau yuav tsum tsis txhob siab tshaj 16 hli.Qhov kev ua tau zoo ntawm cov huab cua steel rau cov qauv welded yog qhov zoo dua li cov huab cua huab cua siab, thiab nws tsuas yog siv rau cov khoom siv welded rau txuas hniav, vaj tse thiab lwm yam qauv.