Thaum xaiv cov hlau rau kev siv cov qauv, Q235 thiabQ450 NQR 1yog ob feem ntau siv qib, tab sis lawv tau tsim los rau ntau lub hom phiaj sib txawv.
Q450 NQR 1
Nkag siab txog lawv qhov sib txawv ntawm cov khoom siv kho tshuab, kev tiv thaiv corrosion, fabrication, thiab nqi yog qhov tseem ceeb rau cov engineers, fabricators, thiab procurement managers.
Khoom Txheej txheem cej luam ntawm Q235 thiab Q450NQR1
- Q235 Hlau
Ib txwm carbon structural steel dav siv nyob rau hauv kev tsim kho thiab lub teeb fabrication
Tsawg alloy cov ntsiab lus thiab nruab nrab lub zog
Formability zoo heev thiab weldability rau kev siv dav dav
Haum rau kev txuas hniav, tsev thav duab, kav dej, thiab lub teeb tshuab
- Q450NQR1 hlau
Lub siab -lub zog huab cua steel (Corten type) tsim rau sab nraum zoov thiab hnyav-cov haujlwm ua haujlwm
Ua ib txheej tiv thaiv xeb (patina) rau atmospheric corrosion kuj
Lub zog muaj zog ntau dua thiab qis - qhov kub thiab txias cuam tshuam toughness
Zoo tagnrho rau tsheb ciav hlau, ntim, txuas hniav, thiab cov khoom siv hnyav
Kev sib piv tshuaj lom neeg ntawm Q235 thiab Q450NQR1
| Element (wt%) | Q235 | Q450 NQR 1 |
|---|---|---|
| Cov pa roj carbon (C) | 0.12–0.20 | 0.12–0.18 |
| Silicon (Si) | 0.03–0.35 | 0.20–0.50 |
| Manganese (Mn) | 0.30–0.65 | 1.20–1.70 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.030 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.030 |
| Copper (Cu) | Tsawg dua los yog sib npaug li 0.25 | 0.25–0.55 |
| Chromium (Cr) | Tsawg dua los yog sib npaug li 0.30 | 0.30–0.60 |
| Nickel (Ni) | Tsawg dua los yog sib npaug li 0.30 | 0.20–0.40 |
| Niobium (Nb) | – | 0.02–0.06 |
| Vanadium (V) | – | 0.05–0.12 |
| Titanium (Ti) | – | 0.02–0.06 |
Q450NQR1 muaj microalloying ntsiab (Nb, V, Ti) thiab Cu / Cr / Ni los txhim kho lub zog, toughness, thiab corrosion kuj, thaum Q235 yog ib qho yooj yim carbon hlau nrog tsawg alloying.
Mechanical Properties Sib piv ntawm Q235 thiab Q450NQR1
| Khoom | Q235 | Q450 NQR 1 |
|---|---|---|
| Yield zog | 235 MPa rau | Ntau dua lossis sib npaug li 450 MPa |
| Tensile zog | 370-500 MPa | 540-690 MPa |
| Elongation (A%) | Ntau dua lossis sib npaug li 26% | Ntau dua lossis sib npaug li 18% |
| Impact Toughness | Nruab nrab | Zoo heev, txawm tias qhov kub thiab txias |
| Hardness (HB) | 120–170 | 160–210 |
Corrosion Resistance ntawm Q235 thiab Q450NQR1
Q235
Ordinary carbon hlau; yuav tsum tau pleev xim los yog txheej rau sab nraum zoov siv
Ceev ceev corrosion nyob rau hauv marine los yog ib puag ncig ntub
Kev saib xyuas- siv sijhawm ntev - kev pabcuam
Q450 NQR 1
Ua ib txheej tiv thaiv xeb ruaj khov thaum raug huab cua
Resistant atmospheric corrosion, txo kev txij nkawm, kev ua haujlwm, thiab khoom poob
Zoo tagnrho rau kev tsheb ciav hlau ntim, txuas hniav, yees, thiab cov khoom siv sab nraum zoov
Q450NQR1 tshem tawm qhov kev xav tau ntawm kev pleev xim ntau zaus thiab txheej txheej, txo qhov nqi ntawm lub neej.
Kev siv ntawm Q235 thiab Q450NQR1
| Feature | Q235 | Q450 NQR 1 |
|---|---|---|
| Kev tsim kho | Lub teeb thav duab, kab teeb, kab | Hnyav- cov kav dej, cov pej thuam, tsheb ciav hlau, cov thawv ntim khoom |
| Fabrication | Yooj yim tsim, vuam, machining | Siab - muaj zog fabrication, yuav tsum tau cov txheej txheem vuam, tej zaum yuav xav tau preheat rau cov phaj tuab |
| Corrosion | Xav tau cov txheej tiv thaiv | Zoo corrosion-resistant (patina tsim) |
| Nqi | Tus nqi pib qis | Tus nqi pib siab dua, tab sis kev saib xyuas qis dua lub sijhawm |
| Lub neej voj voog | Nruab nrab | Ntev - lub sij hawm durability, tsis tshua muaj txij nkawm |
- Q235 yog qhov tsim nyog rau kev siv lub teeb pom kev zoo nrog kev tsim kom zoo thiab tus nqi qis.
- Q450NQR1, txawm li cas los xij, yog qhov kev xaiv zoo dua rau hnyav -cov haujlwm sab nraum zoov, tsheb ciav hlau, thiab cov thawv ntim khoom, qhov chaw muaj zog, corrosion resistance, thiab durability yog qhov tseem ceeb.
Xaiv Q450NQR1 thaum:
- Cov yam ntxwv ntawm cov khoom yog raug rau sab nraum zoov lossis ib puag ncig hnyav
- Ntev -lub sij hawm durability thiab txo kev txij nkawm yog qhov tseem ceeb
- Siab load- bearing peev thiab toughness yuav tsum tau
Xaiv Q235 thaum:
- Tus nqi rhiab heev
- Daim ntawv thov yog sab hauv tsev lossis me me loaded
- Formability thiab weldability yog qhov tseem ceeb tshaj qhov corrosion kuj
Kev nqis peev hauv Q450NQR1 ua kom lub neej ua haujlwm ntev dua, txo tus nqi kho, thiab kev ntseeg tau ntawm cov qauv rau cov ntawv thov hnyav -.
Hu rau tam sim no kom tau txais Q450NQR1 Corten Steel Plate Quote
Q450NQR1 siab zog huab cua steel phaj yog dab tsi?
A:Q450NQR1 yog lub zog muaj zog huab cua uas tsim los ntawm Cu-Cr-Ni alloy system, optimized nrog C, Si, Mn, thiab kab kawm zoo li Nb thiab Ti. Nws ua ke lub zog siab, zoo heev toughness, thiab superior atmospheric corrosion kuj, ua rau nws zoo tagnrho rau cov choj, kev tsim kho, hnyav machinery, thiab sab nraum zoov steel qauv.
Dab tsi yog cov khoom siv kho tshuab ntawm Q450NQR1?
A:Q450NQR1 muaj lub zog tawm los Ntau dua lossis sib npaug ntawm 450 MPa, lub zog tensile Ntau dua lossis sib npaug ntawm 600 MPa, elongation tom qab tawg Ntau dua lossis sib npaug li 21%, thiab cuam tshuam lub zog ntawm -40℃Ntau dua lossis sib npaug rau 60 J. Cov khoom no ua kom cov hlau ua tau zoo, muaj kev nyab xeeb thiab hnyav.
Q450NQR1 piv rau Q345GNHL lossis Q235B steel li cas?
A:Q450NQR1 muaj qhov zoo corrosion kuj zoo dua li Q345GNHL thiab Q235B, tsim cov txheej tiv thaiv oxide uas txo cov txij nkawm. Nws tseem muaj zog dua thiab tawv, ua rau nws tsim nyog rau kev thov sab nraum zoov thiab cov qauv siv.
Dab tsi ua rau Q450NQR1 tiv taus corrosion?
A:Q450NQR1 muaj cov khoom zoo tshaj plaws xws li Cu, Cr, thiab Ni. Nws cov corrosion kuj Performance index I> 6.0 thiab J> 1.0, thiab cov kev kuaj sim xws li ntsev tsuag thiab cyclic immersion paub meej tias superior atmospheric corrosion kev ua tau zoo.
Puas yog Q450NQR1 weldable?
A:Yog lawm, Q450NQR1 muaj weldability zoo heev. Nws tuaj yeem welded siv cov txheej txheem vuam yam tsis muaj preheating nyob rau hauv feem ntau, ua tsaug rau nws cov tshuaj muaj pes tsawg leeg thiab refined microstructure. Qhov no ua rau nws zoo tagnrho rau cov txheej txheem complex.
