Lub teeb- thauj khoom dai kom zoo nkauj lossis qis- cov yam ntxwv ntawm cov qauv kev ntxhov siab: Xws li sab hauv tsev / sab nraum zoov cov ntxaij vab tshaus, me me - lub thawv paj loj, cov paib, cov phab ntsa ntiav ntiav (qhov siab<1m), and light pergola frames (span <2m). Its moderate strength meets basic load requirements while being more cost-effective and easier to process (e.g., bending, cutting) for complex decorative shapes.
Ib puag ncig me me atmospheric: Hauv av, qis- thaj chaw muaj kuab paug uas tsis muaj qhov kub thiab txias hloov pauv (ambient kub Ntau dua lossis sib npaug li 0 degree), Q235NH qhov kev tiv thaiv corrosion txaus los tuav lub sijhawm ntev -kev pabcuam, zam dhau - nqis peev hauv siab - cov ntaub ntawv muaj zog.
Cov nyiaj txiag- cov haujlwm tseem ceeb: Q235NH muaj tus nqi qis dua li Q355NH, ua rau nws zoo tagnrho rau me me - nplai toj roob hauv pes lossis kho kom zoo nkauj tej yaam num nrog nruj pob nyiaj siv thiab tsis muaj siab - lub zog xav tau.
Nruab nrab-mus rau- hnyav load-cov kabmob cov yam ntxwv: Such as large-span pergolas (span >3m), high retaining walls (height >1.5m), sab nraum stair treads / handrails, dej feature lub ntsiab lug, thiab me me neeg taug kev choj auxiliary Cheebtsam. Nws lub zog muaj zog ua kom muaj kev ruaj ntseg nyob rau hauv cua, daus, lossis cov neeg taug kev thauj khoom, tiv thaiv deformation lossis tawg.
Kev pabcuam hnyav ib puag ncig: Nyob rau hauv ntug dej hiav txwv siab- thaj chaw ntsev, thaj chaw muaj cov kua qaub, lossis sub- xoom qis- thaj chaw kub (tsawg dua lossis sib npaug rau -20 degree), Q355NH lub hauv paus siab dua thiab muaj zog dua tuaj yeem tiv thaiv corrosion acceleration thiab qis-kub qhov kev pab cuam, embritting lifespan.
Siab -kev nyab xeeb- yuav tsum muaj cov chaw pej xeem: Xws li cov chaw ua si hauv chaw ua si, cov thoob khib nyiab hauv zej zog tuaj yeem ua thav ntawv, thiab thaj chaw zoo nkauj guardrails, qhov twg cov khoom yuav tsum tau tiv taus ntev - lub sij hawm sab nraum zoov hnav thiab raug kev puas tsuaj, thiab Q355NH cov cuab yeej zoo tshaj plaws tuaj yeem txhim kho kev ruaj ntseg.
Kev ua haujlwm nyuaj: Q235NH muaj lub zog qis dua thiab cov yas zoo dua, ua kom yooj yim rau vuam thiab ua kom zoo nkauj zoo nkauj; Q355NH xav tau cov khoom siv vuam sib txuam thiab cov txheej txheem (xws li, qis-hydrogen electrodes) kom tsis txhob vuam tawg vim nws lub zog ntau dua.
Corrosion npoo: Rau cov khoom siv nrog lub neej tsim kev pab cuam ntau dua 20 xyoo, Q355NH cov khoom siv tuab dua (yeem) tuaj yeem muab cov npoo loj dua, thaum Q235NH haum rau luv luv - mus rau - nruab nrab lub neej kev pab cuam (10-15 xyoo) cov haujlwm zoo nkauj.
