P275 NHyog ib qho weldable, nplua -cov hlau uas tau teev tseg hauv European tus qauv EN 10028-3. Cov phaj hlau no feem ntau yog siv rau kev tsim cov boilers, cov hlab ntsha siab, thiab cov kav dej uas thauj cov kua kub thiab cov pa roj, tsim nyog rau kev pab cuam nruab nrab mus rau qhov kub thiab txias.
Tshuaj muaj pes tsawg leeg
| Cov ntsiab lus | P275 NH |
|---|---|
| Ni | 0.50 |
| C | 0.16 |
| Cr | 0.30 |
| Si | 0.40 |
| Mo | 0.08 |
| Mn | 0.80-1.50 Nws |
| Cu | 0.30 |
| P | 0.025 |
| Nb | 0.05 |
| S | 0.015 |
| V | 0.05 |
| Al | 0.020 |
| Ti | 0.03 |
| N | 0.012 |
P275NH Standard Pressure Vessel Steel Phaj rau qhov chaw txias heev
| Thickness | 200 degree | 400 degree | 50 degree | 350 degree | 100 degree | 300 degree | 150 degree | 250 degree |
|---|---|---|---|---|---|---|---|---|
| 40 (MM) txog 60 (MM) | 197 | 145 | 247 | 154 | 232 | 166 | 215 | 181 |
| 150 (MM) txog 250 (MM) | 167 | 122 | 208 | 130 | 196 | 140 | 181 | 153 |
| mus txog 16 (MM) | 213 | 156 | 266 | 166 | 250 | 179 | 232 | 195 |
| 100 (MM) txog 150 (MM) | 174 | 128 | 218 | 136 | 205 | 147 | 190 | 160 |
| 16 (MM) rau 40 (MM) | 205 | 150 | 256 | 160 | 241 | 173 | 223 | 188 |
| 60 (MM) txog 100 (MM) | 182 | 133 | 227 | 142 | 214 | 153 | 198 | 167 |
Cov ntawv thov tseem ceeb
Boiler thiab Pressure Vessel Manufacturing: Raws li cov khoom tseem ceeb raws li EN 10028-3 tus qauv, nws tsuas yog siv los ua cov boiler nruas, siab -siab reactors, tshav kub exchangers thiab kua cia tank. Nws yog qhov tsim nyog rau cov khoom siv ua haujlwm hauv qhov chaw kub kub, ua kom muaj kev nyab xeeb ntawm kev ua haujlwm hauv siab thiab thermal load.
Kev lag luam Petrochemical: Siv dav hauv kev tsim cov tso tsheb hlau luam, cov khoom sib cais, thiab cov kav dej (flanges, li qub) rau kev ua cov roj thiab roj. Nws tuaj yeem tiv thaiv corrosion los ntawm nruab nrab thiab hloov mus rau kev ua haujlwm hnyav hauv cov nroj tsuag petrochemical.
Kev lag luam fais fab:Siv los tsim cov khoom tseem ceeb xws li siab - cov kav dej siab ntawm cov chaw nres tsheb hauv dej thiab cov khoom siv hluav taws xob tsim hluav taws xob. Nws zoo heev - qhov kub thiab txias ua tau raws li qhov ntev - lub sijhawm ua haujlwm xav tau ntawm cov khoom siv fais fab .
Lwm yam teb: Siv rau hauv cov qauv choj, siab - nce lub tsev thav duab, thiab lub nkoj hull cov qauv vim muaj zog heev. Kuj tseem siv rau hauv kev lag luam zaub mov siab - cov khoom siv ua noj kub thiab cov tshuab hluav taws xob hluav taws xob nuclear.
Core Zoo
Zoo heev High -Kev Ua Haujlwm Kub: Raws li qhov ntsuas kub siab zoo qib steel, nws tau txhim kho thermal stability piv rau cov qib zoo tib yam. Nws tswj cov khoom siv kho tshuab ruaj khov nyob rau hauv siab -kev ua haujlwm kub, tsis txhob deformation lossis tsis ua haujlwm.
Superior Mechanical Properties: Nrog qhov tsawg kawg nkaus lub zog muaj zog Ntau dua los yog sib npaug rau 275MPa thiab tensile zog 390-510MPa, nws muaj zog thiab hardness. Cov qauv nplua-grain (refined los ntawm cov ntsiab lus alloy) txhim kho toughness thiab cuam tshuam tsis kam.
Zoo Weldability thiab Formability:Nws yog ib qho zoo li qub weldable zoo-cov hlau, yooj yim los ua txias thiab kub sib sau thiab vuam txheej txheem. Tsis muaj qhov ua tau zoo degradation tom qab vuam, haum rau kev ua haujlwm nyuaj.
Siab Corrosion Resistance: Ua kom zoo ntxiv nitrogen thiab lwm cov ntsiab lus hlau txhim kho nws cov kev tiv thaiv corrosion, uas tuaj yeem siv rau hauv marine thiab tshuaj corrosive ib puag ncig, ncua kev pab cuam lub neej ntawm cov cuab yeej.
Reliable Quality thiab Versatility: Kev soj ntsuam nruj ultrasonic tom qab dov, nrog kev ruaj khov zoo. Nws tuaj yeem raug kho rau hauv daim hlau, tuav, kav dej thiab lwm yam kev qhia tshwj xeeb, ntsib ntau yam kev xav tau ntawm kev lag luam.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
P275NH yog dab tsi? Nws cov khoom tseem ceeb yog dab tsi?
P275NH yog ib qho uas tsis yog- alloy siab lub nkoj hlau tau teev tseg hauv EN 10028-2 tus qauv. Nws belongs rau weldable fine-grain structural steel qeb, feem ntau yog siv los tsim cov khoom siv siab-cov kabmob ua haujlwm ntawm qhov kub nruab nrab.
Dab tsi yog qhov tsawg kawg nkaus tawm lub zog thiab tensile lub zog ntawm P275NH?
Qhov tsawg kawg nkaus yield zog ntawm P275NH yog 275 MPa (rau thickness Tsawg tshaj li los yog sib npaug rau 16 hli), thiab nws tensile zog ntawm 410 MPa rau 560 MPa. Cov txiaj ntsig no ua kom muaj kev thauj khoom zoo-cov kabmob muaj peev xwm hauv kev siv lub nkoj siab.
Tus qauv twg qhia cov kev cai rau P275NH?
P275NH yog tswj hwm los ntawm European tus qauv EN 10028-2, uas qhia meej txog nws cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, kev kho cua sov, kev xav tau vuam, thiab cov txheej txheem tshuaj xyuas rau cov hlab ntsha siab.
Cov txheej txheem kho cua sov pom zoo rau P275NH yog dab tsi?
P275NH feem ntau ua rau kev kho cua sov kom zoo (cua sov rau 890-950 degree, tuav kom txaus, ces cua txias). Cov txheej txheem no refines nplej, txhim kho toughness thiab weldability, ua tau raws li kev xav tau ntawm lub nkoj siab.
Qhov kev pabcuam siab tshaj plaws ntawm P275NH yog dab tsi?
Qhov siab tshaj plaws kev pabcuam kub ntawm P275NH yog nyob ib ncig ntawm 400 degree. Tshaj li qhov ntsuas kub no, nws cov khoom siv kho tshuab tuaj yeem ua rau tsis zoo, cuam tshuam rau kev nyab xeeb thiab ua haujlwm ntev ntawm lub siab-cov qauv kabmob.
Dab tsi yog cov tshuaj tseem ceeb ntawm P275NH?
Cov tshuaj tseem ceeb (max %) ntawm P275NH: C Tsawg dua lossis sib npaug 0.20, Si Less dua lossis sib npaug rau 0.35, Mn Tsawg dua lossis sib npaug rau 1.60, P Tsawg dua lossis sib npaug 0.025, S Tsawg dua lossis sib npaug 0.015. Cov ntsiab lus zoo li N, Al tuaj yeem muaj los txhim kho cov nplej kom zoo.
P275NH puas haum rau vuam? Yuav tsum tau ceev faj dab tsi?
Yog lawm, P275NH muaj weldability zoo heev. Kev ceev faj: preheat rau 80-150℃(raws li qhov tuab), tswj qhov kub thiab txias, tsis txhob tso cua sov ntau dhau, thiab ua kev kho cua sov tom qab vuam yog tias xav tau rau kev ntxhov siab.
P275NH yog dab tsi?
P275NH yog dav siv nyob rau hauv kev tsim cov hlab ntsha siab, boilers, cia tso tsheb hlau luam, tshav kub exchangers, thiab pipelines rau petrochemical, lub zog tsim, thiab tshuaj industries, haum rau nruab nrab kub thiab siab tej yam kev mob.
Dab tsi yog qhov kev xeem cuam tshuam rau P275NH?
P275NH yuav tsum tau Charpy V-qhov ntsuas qhov cuam tshuam ntawm -20℃. Qhov tsawg kawg nkaus qhov nruab nrab ntawm lub zog yog 27 J rau peb tus qauv, kom ntseeg tau tias qhov kub thiab txias tsis zoo los tiv thaiv cov pob txha tawg hauv qhov chaw txias.
Dab tsi yog qhov tuab ntawm P275NH daim hlau feem ntau muab?
P275NH daim hlau feem ntau muab nrog cov tuab ntawm 5mm txog 200mm. Rau cov thicknesses siab tshaj 16 hli, lub zog tawm los yuav txo qis me ntsis, tab sis nws tseem ua tau raws li tus qauv yuav tsum tau ua.