SA515 Qib 70yog cov pa roj carbon steel phaj specification rau cov hlab ntsha siab, tsim los ntawm ASME. Nws muaj zog tensile zoo (485-}655 MPa) thiab weldability, dav siv nyob rau hauv nruab nrab-kub siab lub nkoj siv xws li boilers thiab cia tank.
Cov cuab yeej cuab tam rau SA515 Qib 70 boiler steel phaj
| Yield zog (Mpa) | Tensile zog (Mpa) | Elongation nyob rau hauv ntau dua los yog sib npaug rau ,% | |
| 260 | 485-620 | 200 hli | 50 hli |
| 17 | 21 | ||
Tshuaj muaj pes tsawg leeg rau SA515 Qib 70 boiler steel phaj (Cov khoom lag luam tsom xam Max%)
| Cov ntsiab lus tseem ceeb ntawm SA515 Qib 70 | |||||
| Thickness (hli) | C | Si | Mn | P | S |
| T Tsawg dua lossis sib npaug li 25 | 0.24 | 0.13-0.45 | 0.98 | 0.025 | 0.025 |
| 25<> | 0.27 | ||||
| 50<> | 0.29 | ||||
| T>100 | 0.31 | ||||
SA 515 Qib 70 Cov yam ntxwv ua haujlwm
Weldability zoo heev: Tsawg carbon sib npaug (tsawg dua lossis sib npaug li 0.42) txo qis hydrogen cracking txaus ntshai thaum vuam. Nws yoog mus rau ntau txoj kev vuam (kev tuav arc, roj av arc, submerged arc) tsis nruj ua ntej - cua sov yuav tsum tau (tsuas yog 80-150℃rau tuab daim hlau), kom ruaj khov weld pob qij txha nrog zoo toughness thiab lub zog.
Zoo Formability: Cov khoom muaj nruab nrab hardness thiab siab ductility, enabling smooth txias thiab kub sib sau. Kev ua kom txias yog ua tau rau cov phaj nyias, thaum kub sib sau (200-}350 degree) txo qhov tsis kam rau cov phaj tuab, tsis txhob deformation thiab tawg. Kev tshem tawm kev ntxhov siab tom qab yog qhov yooj yim thiab siv tau.
Yooj yim txiav Performance: Nws tuaj yeem ua tiav los ntawm plasma, oxy- roj, lossis tshuab txiav. Tsis muaj ntau dhau ua ntej- cua sov yog xav tau rau nyias mus rau nruab nrab daim hlau, kom ntseeg tau siab txiav efficiency thiab du npoo. Cov phaj tuab tsuas yog xav tau qis-kub ua ntej- cua sov kom tiv thaiv ntug brittleness.
Kev kho cua sov zoo teb: Nws teb zoo rau normalization thiab kev ntxhov siab nyem annealing. Normalization refines nplej uniformly, txhim khu lub zog thiab toughness. Kev ntxhov siab nyem annealing zoo tshem tawm cov kev ntxhov siab ntawm kev ua haujlwm, txhim kho qhov ruaj khov ntawm cov khoom tiav.
Compatible Surface Treatment: Nws yooj yim yoog rau sandblasting, pickling, thiab txheej txheej txheem. Oxide nplai thiab impurities tuaj yeem raug tshem tawm tau zoo, ua kom muaj kev sib raug zoo ntawm cov txheej txheem tiv thaiv -corrosion coatings thiab ncua kev pab cuam lub neej nyob rau hauv ib puag ncig hnyav.
Core Industrial Applications
Boiler kev tsim khoom:Siv dav rau kev tsim khoboiler plhaub, steam drums, av nkos nruas, thiab tubesheets vim nws muaj peev xwm tiv taus qhov kub siab thiab kub ntawm combustion.
Cov nkoj siab:Qhov zoo tshaj plaws rau welded siab hlab ntsha uas khaws cia thiab thauj cov kua los yog gases nyob rau hauv lub siab, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig qhov kub thiab txias.450℃thiab 550 degree.
Cov khoom siv cua sov:Feem ntau fabricated rau hauvkub exchangers, condenser, thiab calorifiers rau thermal fais fab nroj tsuag thiab chemical ua.
Vim li cas SA515 Gr 70?
Covcoarse grain qauvntawm SA515 Qib 70 yog kev txiav txim siab tsim khoom xaiv uas muab tau zoo duacreep kujntawm qhov kub thiab txias piv rau zoo- cov hlau zoo li SA516. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau siab -cov kav dej kub thiab qhov chaw nyob ruaj khov.
Yog xav paub ntxiv txog GNEE cov khoom siv hlau, tiv tauj peb ntawm beam@gneesteelgroup.com. Peb tos ntsoov yuav ua haujlwm nrog koj.
Puas yog SA515 Qib 70 haum rau kev siv siab -siab?
Yog lawm, nws tsim nyog rau nruab nrab mus rau siab - cov ntawv thov siab. Nws lub zog tensile thiab tawm los ua tau raws li ASME cov kev cai rau cov hlab ntsha siab, ua rau nws zoo tagnrho rau cov tshuab nrog kev ua haujlwm siab txog li ob peb megapascals.
Dab tsi yog cov cai tshwj xeeb rau SA515 Qib 70 hauv Tebchaws Europe?
European sib npaug specification rau SA515 Qib 70 yog EN 10028-2 P265GH. Ob leeg yog cov pa roj carbon steel rau cov hlab ntsha siab, nrog cov tshuaj zoo sib xws thiab cov khoom siv kho tshuab, tab sis ua raws li cov qauv hauv cheeb tsam sib txawv.
SA515 Qib 70 puas tuaj yeem khoov lossis tsim?
Yog lawm, SA515 Qib 70 muaj cov qauv zoo. Nws tuaj yeem khoov, dov, thiab zoo li tus rau hauv ntau yam khoom ntawm lub nkoj siab (xws li, lub tog raj kheej, lub taub hau) siv cov txheej txheem tsim, muab kev tswj kom zoo.
Dab tsi yog qhov cuam tshuam toughness ntawm SA515 Qib 70?
Qhov cuam tshuam toughness (Charpy V-notch) ntawm SA515 Qib 70 feem ntau yog siab dua lossis sib npaug li 27 J ntawm chav tsev kub. Qhov no ua kom cov khoom tuaj yeem nqus tau lub zog yam tsis muaj pob txha tawg nyob rau hauv kev cuam tshuam tam sim ntawd, tseem ceeb rau kev nyab xeeb.
Dab tsi yog qhov yuav tsum tau khaws cia rau SA515 Qib 70 daim hlau?
Lawv yuav tsum tau muab cia rau hauv qhov chaw qhuav, zoo - qhov cua kom tiv thaiv xeb. Cov phaj yuav tsum tau muab tso rau ntawm cov ntoo txhawb nqa, sib cais los ntawm cov dej noo thiab corrosive, thiab npog nrog cov ntaub ntawv tsis muaj dej yog tias khaws cia sab nraum zoov.
Dab tsi yog qhov siab tshaj carbon cov ntsiab lus tso cai hauv SA515 Qib 70?
Qhov siab tshaj plaws cov ntsiab lus ntawm SA515 Qib 70 yog 0.31%, raws li ASME SA515 tus qauv. Tswj cov ntsiab lus ntawm cov pa roj carbon monoxide ua kom zoo weldability thiab toughness, zam dhau hardness uas yuav ua rau brittleness.
SA515 Qib 70 puas tuaj yeem siv rau hauv kev siv chav boiler?
Yog, nws yog dav siv nyob rau hauv chav boiler daim ntaub ntawv, xws li boiler nruas thiab chav headers. Nws tuaj yeem tiv taus qhov nruab nrab kub thiab siab ntawm chav tshuab, ua tau raws li qhov yuav tsum tau muaj kev nyab xeeb ntawm kev ua haujlwm boiler.
Qhov txawv ntawm SA515 Qib 60 thiab Qib 70 yog dab tsi?
Qhov sib txawv tseem ceeb yog lub zog tensile: Qib 60 muaj lub zog tensile min ntawm 415 MPa, thaum Qib 70 yog 485 MPa. Qib 70 kuj muaj lub zog tawm los ntau dua, ua rau nws haum rau siab dua - cov ntawv thov siab dua qib 60.
Puas yog SA515 Qib 70 muaj nyob rau hauv daim ntawv coil?
SA515 Qib 70 feem ntau yog muab los ua daim hlau, tab sis nws tseem tuaj yeem ua rau hauv daim ntawv coil rau kev siv tshwj xeeb. Cov coils feem ntau yog siv los tsim cov me me - txoj kab uas hla ntawm cov hlab ntsha los yog cov khoom uas yuav tsum tau ua tas mus li.
Cov ntawv pov thawj zoo li cas rau SA515 Qib 70?
Cov ntawv pov thawj muaj txiaj ntsig zoo suav nrog EN 10204 3.1 lossis 3.2, uas txheeb xyuas cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab tsis yog- cov txiaj ntsig kev sim ua kom puas tsuaj. Cov ntawv pov thawj no ua kom cov khoom ua tau raws li ASME SA515 thiab cov kev xav tau ntawm qhov project.