Raws li European tus qauv EN 10028-2, P265GH, siv dav dav dav hlau qib steel qib, yog cov hlau tsis muaj hlau tsis muaj hlau uas feem ntau yog ua los ntawm carbon (C), manganese (Mn), silicon (Si) , phosphorus (P), sulfur (S), thiab cov lej ntawm lwm cov ntsiab lus. P265GH cov tshuaj pleev ib ce tau ua tib zoo ntsuas kom ntseeg tau tias nws muaj qhov tsim nyog zoo xws li kev tsim kom zoo, zoo solderability, thiab corrosion kuj. P265GH, uas yog qhov thib ob ntawm seamless steel kav rau lub hom phiaj siab: cov yeeb nkab uas tsis yog-alloy thiab alloy steel nrog kev ua haujlwm kub, yog European Standard EN 10216-2 cov khoom txheem.
Ntau cov txiaj ntsig ntawm P265GH pab txhawb rau nws txoj kev siv dav hauv kev lag luam. Ua ntej tshaj plaws, vim nws qhov kev ua tau zoo tshaj plaws, nws yog qhov yooj yim los tsim, ua rau kev tsim khoom sai thiab pheej yig. Hlau tuaj yeem tsim rau hauv cov duab sib txawv kom ua tau raws li cov kev xav tau tshwj xeeb ua tsaug rau nws cov formability. Tsis tas li ntawd, vim nws muaj peev xwm ua kom muaj kev kub ntxhov thiab kub, nws tuaj yeem siv rau hauv cov ntawv thov uas xav tau chav, gases, thiab tawm tsam tawm tsam. P265GH qhov kev tiv thaiv corrosion pab ua kom nws lub neej kev pab cuam thaum txo cov nqi kho thiab hloov pauv.
Cov thermal conductivity zoo heev ntawm P265GH tso cai rau kev xa hluav taws xob zoo hauv cov hlab ntsha siab. P265GH kuj tseem muaj cov txiaj ntsig zoo tshaj plaws, lub zog tensile, thiab kev cuam tshuam toughness los lav cov qauv kev ncaj ncees thiab kav ntev nyob rau hauv cov xwm txheej nyuaj. Nws muaj txiaj ntsig zoo rau kev siv lub nkoj siab vim nws lub cev zoo thiab cov yam ntxwv ntawm kev siv tshuab.
Lub peev xwm ntawm P265GH kom zam qhov kub thiab txias yog ib qho ntawm nws cov yam ntxwv tseem ceeb. Raws li qhov tshwm sim, nws yog qhov tsim nyog rau cov ntawv thov uas muaj cov nkev, cov roj kub kub, thiab cov kua hluav taws xob hloov hluav taws xob vim nws khaws nws cov khoom siv zoo txawm tias qhov kub thiab txias. Nws yog ib qho tseem ceeb rau kev lag luam xws li lub zog tsim hluav taws xob, qhov twg boilers thiab chav turbines ua haujlwm ntawm qhov kub thiab txias, kom muaj qhov tsis kam mus rau thermal stress thiab creep deformation. P265GH yog qhov zoo tshaj plaws rau kev siv cov hlab ntsha siab vim tias nws tau tsim los tiv thaiv kev kub ntxhov. Lub nkoj muaj kev nyab xeeb thiab kev ncaj ncees tau lees paub los ntawm nws qhov siab tensile thiab cov txiaj ntsig zoo, uas tso cai rau nws ua rau lub siab sab hauv yam tsis muaj deforming lossis ua tsis tiav. Qhov kev ua tau zoo no yog qhov tseem ceeb tshwj xeeb hauv thaj chaw uas nws tsim nyog los tswj cov khoom txaus ntshai lossis cov kua dej hauv qab siab.
Chemical Composition (%) ntawm P265GH Siab Lub Hom Phiaj Hlau
| CHEMICAL COMPOSITION (%) | |||||||||||
| C, max | Mn | P, max | S, max | Si, max | Cr, max | Nim, max | Mo, max | Al, max | Cu, max | V, max | N, max |
| 0.20 | 0.80-1.40 | 0.025 | 0.010 | 0.40 | 0.30 | 0.30 | 0.08 | 0.020 | 0.30 | 0.010 | 0.012 |
Mechanical Properties ntawm P265GH Siab Lub Hom Phiaj Hlau
| MECHANICAL PROPERTIES | |||
| Thickness (hli) | Tensile zog, MPa | Yield zog, MPa, min | Elongation (%), min |
| t Tsawg dua los yog sib npaug rau 16 | 410-530 | 265 | 22 |
| 16<> | 255 | ||
| 40<> | 245 | ||
| 60<> | 215 | ||
| 100<> | 400-530 | 200 | |
| 150<> | 390-530 | 185 | |
Txhawm rau tsim P265GH nrog cov khoom tsim nyog, ntau cov txheej txheem tsim khoom siv. Feem ntau, nws yog tsim nyob rau hauv hluav taws xob arc rauv, ces refined thiab nqus degassed. Txhawm rau txhim kho nws cov khoom siv kho tshuab thiab kho nws cov microstructure, steel yog kub dov, normalized, los yog quenched thiab tempered. Txhawm rau kom paub tseeb tias cov khoom kawg qhov zoo thiab kev ncaj ncees, kev sim tsis muaj kev puas tsuaj, xws li kev kuaj ultrasonic lossis radiographic, feem ntau siv. P265GH steel phaj feem ntau xa tuaj rau hauv lub xeev zoo li qub, uas yog tus cwj pwm los ntawm kev ua tau zoo ib yam thiab muaj txiaj ntsig zoo li cov nplej loj. P265GH steel phaj yuav tsum ua raws li EN 10029 qhov yuav tsum tau ua ntawm qhov loj, daim ntawv, qhov hnyav, thiab kev tso cai sib txawv. Qhov tso cai sib txawv ntawm thickness kuj yuav tsum ua raws li chav kawm B sib txawv ntawm EN 10029.
Kev ua tau zoo heev ua rau P265GH yooj yim los tsim thiab txuas. Muaj ntau txoj hauv kev los vuam, suav nrog phau ntawv hlau arc vuam, submerged arc vuam, thiab roj tungsten shielded vuam. Cov yam ntxwv no ua rau P265GH zoo meej rau kev tsim cov txheej txheem tsim cov hlab ntsha thiab lav cov txheej txheem tsim tau zoo.
Nta ntawm P265GH Siab Lub Hom Phiaj Hlau
- Zoo heev kub kuj
- Zoo heev siab tsis kam
- Zoo weldability
- Zoo corrosion kuj
- Zoo heev cuam tshuam toughness
- Zoo toughness thiab txias dabtsi yog khoov zog
Vim nws qhov kev ua tau zoo heev, P265GH tau siv dav hauv ntau qhov chaw lag luam. P265GH thawv phaj yog siv rau hauv kev tsim cov reactors, tshav kub exchangers, separators, kheej kheej tso tsheb hlau luam, roj thiab roj tso tsheb hlau luam, liquefied roj tso tsheb hlau luam, nuclear reactor siab plhaub, liquefied roj av lub tog raj kheej, turbine volutes, thiab lwm yam khoom thiab cov khoom.
