Q235NH Weathering Steel Sheet - Siab zog & Corrosion Resistant

Gnee Steel (Tianjin) Co., Ltd. yog ib qho ntawm cov kws tshaj lij q235nh weathering steel ntawv - siab zog & corrosion resistant manufacturers thiab lwm tus neeg nyob hauv Suav teb. Txais tos rau kev lag luam wholesale customized q235nh weathering steel ntawv - siab zog & corrosion resistant ntawm tus nqi sib tw los ntawm peb lub hoobkas. Cov kev pabcuam zoo thiab cov khoom zoo yog muaj.

Q235NH Weathering Steel Sheet yog tus hwm-qib qis- alloy structural steel engineered rau tshwj xeeb atmospheric corrosion kuj thiab robust mechanical kev ua tau zoo. Ua raws liGB/T 4171tus qauv, cov hlau no tau siv dav hauv kev tsim kho vaj tsev sab nraum zoov, kev thauj mus los, thiab kev siv vaj tsev nyob qhov twg ntev - lub sijhawm ua haujlwm ntev thiab kev saib xyuas tsawg kawg yog qhov tseem ceeb.

1. Tshuaj muaj pes tsawg leeg

Q235NH ua tiav nws cov kev tiv thaiv corrosion los ntawm kev sib tw alloying:

Carbon (C Tsawg dua lossis sib npaug rau 0.13%): Sib npaug lub zog thiab weldability thaum txo brittleness.

Silicon (Si 0.1-0.4%): Txhim kho oxidation tsis kam thiab cov qauv kev ruaj ntseg.

Manganese (Mn 0.20-0.60%): Txhim kho tensile lub zog thiab ua haujlwm tau zoo.

Phosphorus (P Tsawg dua lossis sib npaug 0.030%) & Sulfur (S Tsawg dua lossis sib npaug rau 0.030%): nruj me ntsis tswj kom tsis txhob embrittlement.

Tooj liab (Cu 0.25-0.55%), Chromium (Cr 0.40-0.80%), Nickel (Ni tsawg dua lossis sib npaug rau 0.65%): Tsim ib txheej tuab, adherent xeb (ε-FeOOH) uas ua raws li lub ntuj barrier tiv thaiv ya raws thiab cov pa phem.

2. Mechanical Properties

Yield zog: 215-235 MPa, ua kom muaj kev ncaj ncees nyob rau hauv cov khoom hnyav.

Tensile zog360-510 MPa, muab kev tiv thaiv zoo rau deformation.

Elongation: Ntau dua lossis sib npaug li 24%, muab cov ductility zoo heev rau khoov thiab shaping.

Weldability: Tau tshaj cov txheej txheem vuam txheej txheem, ua kom muaj txiaj ntsig zoo ntawm cov txheej txheem nyuaj.

3. Cov yam ntxwv tseem ceeb

ib. Txhim kho Corrosion Resistance

Q235NH outperforms pa carbon steel nrog2-8 npaug ntau dua huab cua tsis kam. Thaum raug cov huab cua, nws qhov chaw tsim ib qho chaw ruaj khov, xeb-zoo li patina uas inhibits corrosion ntxiv, tshem tawm qhov xav tau kev pleev xim ntau zaus lossis txheej txheej. Qhov no "tus kheej- tiv thaiv" mechanism txo cov nqi ntawm lub neej mus txog 50% nyob rau hauv ib puag ncig sab nraum zoov.

b. Siab zog - rau - Qhov hnyav piv

Nrog lub zog tawm los ntawm 235 MPa, Q235NH txhawb nqa hnyav thaum tuav lub teeb yuag, zoo tagnrho rau cov ntawv thov uas xav tau ob qho tib si durability thiab cov khoom siv tau zoo.

c. Ntau yam txheej txheem

Cov hlau zoo heev formability thiab weldability tso cai rau seamless kev koom ua ke rau ntau yam project, los ntawm nkhaus architectural ntsiab rau prefabricated structural Cheebtsam.

d. Aesthetic Appeal

Lub ntuj xeb- xim patina ntawm Q235NH ntxiv qhov tshwj xeeb, muaj kev zoo nkauj rau cov tsev, cov duab puab, thiab cov toj roob hauv pes, sib xyaw ua haujlwm nrog cov qauv tsim niaj hnub.

4. Cov ntawv thov

ib. Kev tsim kho & Infrastructure

Cov choj: Tiv thaiv ntsev tsuag thiab dej noo nyob rau hauv ntug dej hiav txwv los yog siab - thaj chaw tsheb.

Sab nraum zoov Cov Qauv: Ntauwd, pergolas, thiab railings yuav tsum tau saib xyuas tsawg.

Facades & Roofing: Ua ke nrog corrosion kuj nrog architectural tsis txaus siab nyob rau hauv kev lag luam thiab thaj tej yaam num.

b. Kev thauj mus los

Railway Tsheb: Cov tsheb thauj khoom thiab cov thawv ntim khoom tiv taus huab cua hnyav thiab cov neeg kho tshuab kev ntxhov siab.

Shipping & Marine: Resistant corrosion nyob rau hauv cov khoom siv chaw nres nkoj thiab chaw ntug dej hiav txwv.

c. Khoom siv

Cia Tank: Haum rau sab nraum zoov cia cov kua lossis cov khoom siv ntau.

Fais fab nroj tsuag: chimneys thiab cov qauv kev txhawb nqa tiv taus acidic emissions.

5. Cov Qauv & Ua raws cai

Manufactured raws liGB/T 4171, Q235NH ua tau raws li kev tswj xyuas kom zoo, suav nrog cov tshuaj lom neeg muaj pes tsawg leeg, kev sim tshuab, thiab cov qauv ua tiav. Nws kuj tau sib xws nrog cov kev qhia tshwj xeeb thoob ntiaj teb xws li ASTM A242 thiab EN 10025, kom ntseeg tau tias siv tau thoob ntiaj teb.

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