GB / T Corten Hlau

 

Txheej txheem cej luam ntawm GB / T 4171-2008 Standard

CovGB/T 4171tus qauv qhia qhov ntev, zoo li, qhov hnyav, kam rau ua, kev xav tau, kev sim, kev tshuaj xyuas, ntim, thiab ntawv pov thawj rau huab cua cov qauv hlau.

Cov qauv no yog dav siv tau rau kub- dov thiab txias- dov steel daim hlau, strips, thiab cov qauv txheej txheem featuring atmospheric corrosion kuj. Cov ntaub ntawv no tau siv dav hauv kev tsim tsheb, txuas hniav, cov thawv thauj khoom, cov tsev, cov pej thuam, thiab lwm yam hnyav- lub luag haujlwm. Tsis tas li ntawd, GB / T 4171 weathering steel yog qhov zoo tshaj plaws rau bolted, riveted, thiab welded structural Cheebtsam.

 

 

Raws li GB/T 4171-2008 tus qauv, huab cua hlau yog txhais tau tias yog lub zog siab steel alloyed nrog cov nqi ntawm cov ntsiab lus xws liCopper (Cu), Phosphorus (P), Chromium (Cr), thiab Nickel (Ni).

 

Huab Cua Huab Cua (Atmospheric Corrosion-Resistant Steel)

Lub atmospheric corrosion kuj ntawm weathering steel yog2 rau 8xsiab dua li cov pa roj carbon zoo tib yam. Qhov ntev nws raug rau ib puag ncig, qhov zoo tshaj plaws nws cov corrosion kuj ua.

 

Corrosion kuj txawv nyob ntawm qhov chaw tshwj xeeb, uas feem ntau muab faib ua peb hom atmospheric:nyob deb nroog, industrial, thiab marine.

 

Yuav kom ua tau raws li qhov xav tau ntawm qhov project, weathering steel muajpeb txoj kev thov thawj zaug:

Kev siv liab qab (Unpainted):Tshaj tawm ncaj qha mus rau huab cua los ua ib qho ntuj xeb patina.

Xim siv:Coated nrog xim rau ncua lifespan thiab tshwj xeeb zoo nkauj.

Rust Stabilization Treatment (Pre-weathered):Chemically kho kom xauv rau hauv cov txheej xeb thiab tiv thaiv cov dej ntws.

 

Corten Steel Nto Xim Evolution Diagram

 

Raws li pom nyob rau hauv daim duab, qhov saum npoo ntawm weathering steel ib txwm hloov zuj zus los ntawm qhov pib ci txiv kab ntxwv mus rau qhov ruaj khov, lub ntiaj teb tsaus xim av dhau 6 mus rau 36 lub hlis, tsim tus kheej - tiv thaiv patina txheej.

 

GB/T 4171-2008 Weathering SteelKev faib tawm

Kev faib tawm thiab kev siv ntawm txhua qib muaj nyob rau hauv Table 1.

Table 1

Qeb	Qib	Txoj kev tsim khoom	Daim ntawv thov
Siab Weathering Steel	Q295GNH, Q355GNH	Kub Rolled	Cov hom phiaj xws li tsheb, thawv, tsev, yees, lossis lwm yam khoom siv. Piv nrog rau vuam weathering hlau, nws muaj zoo atmospheric corrosion kuj.
	Q265GNH, Q310GNH	Txias Rolled
Vuam Weathering Steel	Q235NH, Q295NH, Q355NH Q415NH, Q460NH, Q500NH qw 550n	Kub Rolled	Cov hom phiaj xws li tsheb, txuas hniav, ntim khoom, tsev, lossis lwm yam khoom siv. Piv nrog cov huab cua huab cua siab, nws muaj qhov zoo dua vuam kev ua haujlwm.

 

Method of Grade Designation

Qib steel yog tsim los ntawm thawj tsab ntawv ntawm Suav Pinyin rau "yield zog" ("Qu"), "high weathering" ("Gao Nai Hou") los yog "weathering" ("Nai Hou"): "Q", "GNH" los yog "NH", qhov qis qis ntawm lub zog yield, thiab qib zoo (A, B, C), D,

 

Piv txwv li: Q355GNHC

• Q- Thawj tsab ntawv ntawm Suav Pinyin rau lo lus "Qu" nyob rau hauv yield zog.
• 355- Qhov qis qis ntawm cov hlau tawm lub zog, hauv N / mm².
• GNH- Thawj tsab ntawv ntawm Suav Pinyin rau cov lus "Gao" (High), "Nai" (Resistance), thiab "Hou" (Weathering), feem.
• C- Qib zoo.