Thaum xaiv cov khoom siv rau kev siv lub nkoj siab,P355 NHsteel thiab P460NH siab hlab ntsha hlau yog ob feem ntau siv qib raws li EN 10028-3 tus qauv.
P355 NH
Txawm hais tias ob qho tib si yog tsim los rau lub hom phiaj siab thiab muab rau hauv cov xwm txheej zoo li qub, lawv sib txawv hauv qib zog, kev siv ntau yam, thiab tus nqi.
Kev nkag siab qhov sib txawv ntawm ob cov ntaub ntawv no pab cov engineers thiab cov neeg yuav khoom xaiv cov hlau tsim nyog tshaj plaws rau lawv qhov kev xav tau.
P355NH Steel yog dab tsi?
P355NH steel yog ib qho zoo li qub -cov nplej siab lub nkoj steel nrog qhov tsawg kawg nkaus lub zog ntawm 355 MPa. Nws yog dav siv nyob rau hauv cov hlab ntsha siab, boilers, thiab cov khoom siv uas yuav tsum tau zoo toughness thiab weldability.
Vim nws cov tshuaj muaj pes tsawg leeg thiab nplua - cov qauv nplej, P355NH muaj kev ua tau zoo nyob rau hauv ob qho tib si nruab nrab kub thiab qis - qhov kub thiab txias, ua rau nws yog ib qho kev xaiv zoo rau kev siv siab.
P460NH Steel yog dab tsi?
P460NH kuj yog ib qho zoo li qub -cov nplej siab lub nkoj hlau nyob rau hauv EN 10028-3, tab sis nrog lub zog qis dua ntawm 460 MPa. Nws feem ntau yog siv rau hauv cov ntawv siv hnyav uas yuav tsum muaj zog dua.
Txawm li cas los xij, lub zog siab dua feem ntau tuaj nrog cov khoom siv ntau dua thiab cov kev xav tau nruj dua.
Tshuaj muaj pes tsawg leeg ntawm P355NH hlau thiab P460NH siab hlab ntsha hlau
P355NH tshuaj muaj pes tsawg leeg (%)
| Element | Cov ntsiab lus |
|---|---|
| C | Tsawg dua lossis sib npaug li 0.18 |
| Si | Tsawg dua los yog sib npaug li 0.50 |
| Mn | 1.10 – 1.70 |
| P | Tsawg dua lossis sib npaug li 0.025 |
| S | Tsawg dua lossis sib npaug li 0.015 |
| Nb | Tsawg dua los yog sib npaug li 0.05 |
| V | Tsawg dua los yog sib npaug li 0.10 |
| Al | Ntau dua lossis sib npaug rau 0.020 |
P460NH tshuaj muaj pes tsawg leeg (%)
| Element | Cov ntsiab lus |
|---|---|
| C | Tsawg dua los yog sib npaug li 0.20 |
| Si | Tsawg dua lossis sib npaug li 0.60 |
| Mn | 1.00 – 1.70 |
| P | Tsawg dua lossis sib npaug li 0.025 |
| S | Tsawg dua lossis sib npaug li 0.015 |
| Nb | Tsawg dua los yog sib npaug li 0.05 |
| V | Tsawg dua lossis sib npaug li 0.12 |
| Al | Ntau dua lossis sib npaug rau 0.020 |
Ob qib muaj qhov sib xws, tab sis P460NH feem ntau muaj cov ntsiab lus siab dua me ntsis kom ua tiav lub zog siab dua.
Mechanical Properties ntawm P355NH steel thiab P460NH siab hlab ntsha hlau
| Khoom | P355 NH | P460 NH |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug li 355 MPa | Ntau dua lossis sib npaug li 460 MPa |
| Tensile zog | 470-630 MPa | 540-720 MPa |
| Impact Toughness | 27J @ -20 degree | 27J @ -20 degree |
P460NH muab lub zog ntau dua, tab sis qhov no tsis yog ib txwm txhais tau tias nws yog qhov kev xaiv zoo dua.
Qhov txawv ntawm P355NH thiab P460NH
1. Qib muaj zog
P460NH muaj zog tawm los ntau dua, ua rau nws haum rau siab -load daim ntawv thov.
Txawm li cas los xij, lub zog siab dua kuj txhais tau tias kev ua haujlwm nyuaj dua thiab cov nqi siab dua.
2. Weldability thiab Fabrication
P355NH steel muaj qhov zoo dua weldability, ua tsaug rau nws cov ntsiab lus qis carbon thiab sib npaug. Nws yooj yim dua rau txheej txheem, txiav, thiab vuam, ua rau nws zoo tagnrho rau feem ntau cov txheej txheem siab ntawm cov hlab ntsha.
3. Tus nqi siv tau
P355NH feem ntau yog tus nqi ntau dua - zoo dua P460NH, tshwj xeeb tshaj yog rau nruab nrab - cov ntawv thov siab qhov twg ultra- tsis tas yuav muaj zog.
4. Daim ntawv thov Scope
P355NH hlau
Haum rau cov hlab ntsha dav dav, boilers, thiab cov cuab yeej siv
P460NH hlau
Siv nyob rau hauv hnyav- lub luag haujlwm siab xav tau lub zog siab dua
Vim li cas P355NH yog qhov kev xaiv zoo dua rau feem ntau cov haujlwm
Thaum P460NH muaj zog dua, P355NH siab nkoj steel muab qhov sib npaug zoo ntawm kev ua tau zoo, weldability, thiab tus nqi.
Rau feem ntau cov ntawv thov kev lag luam, P355NH muab lub zog txaus thaum muab kev tsim khoom yooj yim dua thiab qis dua tus nqi tag nrho. Qhov no ua rau nws nyiam cov khoom siv rau cov engineers thiab pab pawg muag khoom.
Kev siv ntawm P355NH Steel
- Cov hlab ntsha siab thiab lub tank cia
- Boilers thiab kub exchangers
- Petrochemical khoom
- Roj thiab roj ua tshuab
- Cov khoom siv hluav taws xob
Ob qho khoom siv yog siab - zoo siab lub nkoj steel, tab sis lawv cov kev siv sib txawv. P460NH yog qhov tsim nyog rau siab - qhov yuav tsum tau muaj zog, thaum P355NH steel yog ntau yam thiab tus nqi ntau dua - kev xaiv zoo rau feem ntau cov kev siv nkoj siab.
Raws li tus kws tshaj lij P355NH siab lub nkoj xa khoom, peb muab siab - daim hlau zoo, qhov ntau thiab tsawg, thiab xa khoom sai. Tiv tauj peb hnub no kom tau txais kev txhawb nqa thiab kev sib tw hais lus.
Hu rau tam sim no kom tau txais P355NH nkoj steel phaj Quote
P355NH khoom yog dab tsi?
P355NH steel yog tus cwj pwm los ntawm kev sib txuas zoo thiab kev ua haujlwm siab kom tawg tawg.
Qhov txawv ntawm S355H thiab s355nh yog dab tsi?
Lub Hom Phiaj: Zoo ib yam li S355H, nws yog siv rau cov qauv hollow seem, tab sis "N" qhia tias cov hlau yog normalized los yog normalized dov, uas txhim kho nws cov toughness thiab weldability los ntawm refining lub grain qauv.
"GH" txhais li cas hauv P355GH?
Nyob rau hauv P355GH, "P" stands rau siab hlab ntsha hlau, "355" yog hais txog qhov tsawg kawg nkaus yield zog ntawm 355 MPa, thiab "GH" qhia tsim nyog rau siab kub kev pab cuam.
Cov tshuaj muaj pes tsawg leeg ntawm P355GH steel yog dab tsi?
P355GH steel feem ntau muaj cov tswj cov pa roj carbon, silicon, thiab manganese, uas tsis tshua muaj phosphorus thiab sulfur cov ntsiab lus kom ntseeg tau zoo weldability thiab kev ua haujlwm ntawm qhov kub thiab txias.
Dab tsi yog cov yam ntxwv ntawm P355GH?
P355GH steel muaj qhov tsawg kawg nkaus lub zog ntawm 355 MPa thiab lub zog tensile zoo. Nws yog tsim los tswj cov neeg kho tshuab ruaj khov nyob rau hauv qhov kub thiab txias.
Puas yog P355GH haum rau cov ntawv thov kub?
Yog lawm, P355GH tshwj xeeb yog tsim los rau kev pabcuam kub thiab ua haujlwm zoo nyob rau hauv ib puag ncig uas yuav tsum tau ua kom sov thiab ua haujlwm siab.
Qhov txawv ntawm P355GH thiab P355NH yog dab tsi?
Qhov sib txawv tseem ceeb yog tias P355NH yog qhov zoo li qub- cov hlau tsis muaj zog nrog cov kev ntsuas cuam tshuam nruj dua, thaum P355GH feem ntau siv rau kev siv qhov kub thiab txias yam tsis tas yuav tsum tau ua kom qis - qhov kub thiab txias.
Puas yog P355GH yooj yim rau vuam?
Yog lawm, P355GH muaj weldability zoo vim nws cov ntsiab lus carbon tsawg. Nws tuaj yeem welded siv cov txheej txheem vuam tsis muaj kev pheej hmoo ntawm kev tawg.