Dab tsi ntawm Steel Phaj yog Weatherproof Steel Phaj?

Weathering steel, tseem hu ua Cowden steel, yog cov hlau tsis tshua muaj hlau ntawm cov hlau zoo tib yam thiab stainless hlau. Huab cua hlau yog ua los ntawm cov pa roj carbon zoo tib yam thiab muaj cov khoom me me ntawm cov khoom tiv thaiv corrosion xws li tooj liab thiab npib tsib xee. Nws muaj cov yam ntxwv ntawm lub zog thiab toughness, yas txuas ntxiv, sib sau, vuam thiab txiav, hnav tsis kam, kub tsis kam thiab qaug zog ua haujlwm ntawm cov hlau zoo; Cov huab cua tsis kam yog 2 mus rau 8 npaug ntawm cov pa roj carbon zoo tib yam, thiab cov txheej txheem ua haujlwm yog 1.5 txog 10 npaug ntawm cov pa roj carbon zoo tib yam. Nyob rau tib lub sijhawm, nws muaj cov yam ntxwv ntawm kev tiv thaiv xeb, tiv thaiv corrosion, ua haujlwm ntev lub neej, thinning thiab noj txo, txuag zog thiab txuag hluav taws xob.

1, ferritic stainless hlau. Chromium cov ntsiab lus 12% ~ 30 feem pua. Nws cov corrosion kuj, toughness thiab weldability nce nrog nce ntawm chromium cov ntsiab lus, thiab nws cov chloride ion kev nyuaj siab corrosion kuj zoo dua li lwm yam stainless hlau. 2, martensitic stainless hlau. Siab zog, tab sis tsis zoo plasticity thiab weldability.

3, austenitic stainless hlau. Nws muaj ntau dua 18 feem pua ​​​​chromium, txog 8 feem pua ​​​​nickel, thiab me me ntawm molybdenum, titanium, nitrogen, thiab lwm yam. Zoo zuag qhia tag nrho kev ua tau zoo, corrosion kuj rau ntau yam xov xwm. 4, austenite-ferrite duplex stainless hlau. Nws muaj qhov zoo ntawm austenitic stainless hlau thiab ferritic stainless hlau, thiab muaj superplasticity.

Huab cua-resistant steel phaj qib feem ntau muaj xws li: 05cupcrni-a, 09cupcrni-a, SPA-H, b480gnqr, q400nqr1, Q450NQR1, q550nqr1, q700nqr1, q235nh, q2556nh, q9hl, q3 , corten, b450nq, b460nq, q500nq, nmie0921, NM360, nm400, Q450NQR1, thiab lwm yam.

Hauv cov ntsiab lus, cov saum toj no yog cov ntsiab lus tseem ceeb ntawm hom hlau phaj yog huab cua resistant steel phaj. Cov huab cua-resistant steel phaj yog ua los ntawm cov pa roj carbon zoo tib yam thiab ib qho me me ntawm corrosion-resistant ntsiab xws li tooj liab thiab npib tsib xee. Nws muaj lub zog, toughness, yas elongation, sib sau, vuam thiab txiav, hnav, kub thiab qaug zog cov yam ntxwv ntawm high-zoo steel; Cov huab cua tsis kam yog ob zaug ntawm cov pa roj carbon zoo tib yam, thiab cov txheej txheem kev ua haujlwm yog cov pa roj carbon zoo tib yam, uas tuaj yeem txo cov tuab, nthuav tawm lossis ua kom yooj yim txheej txheej. Cov hlau muaj cov yam ntxwv ntawm kev tiv thaiv xeb, tiv thaiv corrosion, ncua kev pab cuam lub neej, thinning thiab noj txo, txuag zog thiab txuag hluav taws xob, thiab lwm yam, uas muaj txiaj ntsig zoo rau cov tuam ntxhab thiab cov neeg siv khoom.

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