Thaum xaiv Corten Steel rau sab nraum zoov lossis cov qauv tsim, ntau tus neeg yuav khoom tawm tsam xaiv ntawm Q355NH thiab Q295NH-ob qho tib si yog huab cua- tiv taus, tus nqi- siv tau, thiab siv dav, tab sis lawv qhov sib txawv ntawm lub zog thiab kev ua tau zoo ua rau lawv haum rau cov kev siv sib txawv. Tsis meej pem ob qho no tuaj yeem ua rau overspending los yog cuam tshuam qhov project durability. Yog li, Q355NH thiab Q295NH piv li cas, thiab qhov twg haum rau koj qhov project zoo tshaj? Raws li GB / T 4171 tus qauv thiab kev ua lag luam, cov lus teb tseem ceeb yog qhov tseeb:Q355NH thiab Q295NH sib faib cov huab cua zoo sib xws, tab sis Q355NH muaj zog dua, thaum Q295NH raug nqi ntau dua -zoo rau lub teeb- siv lub luag haujlwm. Hauv qab no yog qhov sib piv, ua tau zoo.
Qhov Tseem Ceeb Zoo sib xws: Huab Cua Resistance (Core Trait of Ob)
Raws li Corten Steels, Q355NH thiab Q295NH muaj ze li qhov zoo tib yam corrosion kuj-qhov no yog lawv qhov zoo tshaj plaws:
Alloy Composition: Ob qho tib si muaj Cu, Cr, thiab Ni kab uas tsim los tiv thaiv patina hauv 6-12 lub hlis.
Corrosion Performance: Ob qho tib si txo tus nqi corrosion tsawg dua lossis sib npaug li 0.03mm / xyoo, 3-5 npaug zoo dua li cov pa roj carbon zoo tib yam.
Kev Kho: Tsis tas yuav tsum tau pleev xim ntau zaus; kev tu yooj yim yog txaus los khaws lawv cov patina thiab kev pabcuam lub neej.
Qhov txawv ntawm qhov tseem ceeb (Cov tswv yim rau kev xaiv qhov project)
Qhov sib txawv tseem ceeb yog nyob rau hauv lub zog txhua yam ("355" thiab "295" hauv lawv cov qib xa mus rau qhov tsawg kawg nkaus tawm lub zog), uas txiav txim siab lawv daim ntawv thov:
1. Mechanical Strength
Q355NH: Yam tsawg kawg nkaus yield zog Ntau dua los yog sib npaug rau 355MPa, tensile zog 490-630MPa (nruab nrab-siab zog).
Q295NH: Yam tsawg kawg nkaus yield zog Ntau dua los yog sib npaug rau 295MPa, tensile zog 450-600MPa (nruab nrab lub zog).
Tswv yim cuam tshuam: Q355NH tuaj yeem ua haujlwm hnyav dua, thaum Q295NH tsuas yog haum rau lub teeb- cov qauv ua haujlwm.
2. Daim ntawv thov Scope
Q355NH: Zoo tagnrho rau nruab nrab- hnyav hnyav- cov haujlwm ua haujlwm (txoj kev txhawb nqa, kev lag luam thav duab, chaw nres nkoj machinery, hnyav guardrails).
Q295NH: Tsim nyog rau lub teeb- daim ntawv thov kev ua haujlwm (sab nraum zoov cladding, hniav vaj huam sib luag, me me billboards, lub teeb guardrails).
3. Nqi & Fabrication
Tus nqi: Q295NH yog 10-15% pheej yig dua Q355NH, ua kom nws zoo dua rau kev siv nyiaj- txwv, lub teeb ua haujlwm.
Fabrication: Both have good weldability/formability; Q355NH (thicker plates >16mm) xav tau me ntsis preheating ua ntej vuam, thaum Q295NH tsis tshua muaj.
Phau Ntawv Qhia Kev Xaiv Ceev (Txuag Sijhawm rau Koj Qhov Haujlwm)
Xaiv Q355NH yog tias: Koj qhov project xav tau kev thauj khoom -cov kabmob muaj peev xwm (xws li cov kab teeb pom kev zoo, cov khoom siv tshuab hnyav) lossis xav tau kev ua haujlwm ntev dua.
Xaiv Q295NH yog tias: Koj xav tau lub teeb- huab cua huab cua- tiv taus steel (xws li, kho kom zoo nkauj, cladding) thiab xav tswj cov nqi.
Hauv cov ntsiab lus, Q355NH thiab Q295NH yog ob qho tib si txhim khu kev qha Corten Steels, tab sis lawv lub zog sib txawv txhais tau tias lawv siv. Q355NH ua tau zoo tshaj plaws hauv kev thauj khoom-cov xwm txheej, thaum Q295NH yog tus nqi-kev xaiv zoo rau lub teeb-lub luag haujlwm, cov haujlwm zoo nkauj- txuam cov hlau rau koj qhov project load thiab pob nyiaj siv ua haujlwm kom zoo thiab muaj txiaj ntsig.
