Weathering Steel Txheej txheem cej luam

Cov ntsiab lus ntawm cov hlau alloy thiab qhov hnyav feem pua ​​​​ntawm cov huab cua steel yog: C: ≤0.12, Si: 0.25 ~ 0.75, Mn: 0.2 ~ 0.5, S ≤0.02, P: 0.06 ~ 0.12, Cu: 0.25 ~ 0.5, Cr: 0.3 ~ 1.25, Ni: 0.12 ~ 0.65, tus so yog Fe thiab kab kawm. Los ntawm kev sib xyaw ntawm Cu, Mn, Si, Al, thiab lwm yam, thiab tsuas yog kho cov ntsiab lus ntawm qee cov ntsiab lus ntawm cov hlau tsis tshua muaj carbon steel (Q235 steel), nws tuaj yeem tsim cov huab cua zoo corrosion tsis tas yuav hloov cov txheej txheem ntawm Q235 steel. , Economic weathering steel nrog cov khoom siv kho tshuab.

Huab cua hlau (uas yog, atmospheric corrosion resistant steel) tau muaj peev xwm txhim kho thiab tsim kho tshiab tom qab koom nrog cov txheej txheem tshiab metallurgical tshiab, cov thev naus laus zis tshiab thiab cov txheej txheem tshiab, thiab yog ib qho ntawm cov qib steel qib nyob rau pem hauv ntej ntawm lub ntiaj teb' s super steel technology. 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 khoom zoo ntawm cov hlau zoo xws li lub zog, ductility, sib sau, vuam, puas, kub kub, qaug zog, thiab lwm yam.; huab cua tsis kam yog 2 ~ ntawm cov pa roj carbon zoo tib yam 8 zaug, cov txheej txheem 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 txuag thiab txuag hluav taws xob, uas muaj txiaj ntsig zoo rau cov tuam ntxhab thiab cov neeg siv khoom. Weathering steel khoom yog siv los tsim cov khoom siv xws li ntim khoom, tsheb ciav hlau, roj derricks, seaport cov tsev, cov chaw tsim roj, thiab cov thawv ntim uas muaj hydrogen sulfide corrosive media hauv cov khoom siv roj av.