P265TR2 yog qib carbon steel uas tau teev tseg nyob rau hauv cov qauv European siab yeeb nkab, thiab nws feem ntau thov los ntawm cov neeg yuav khoom uas xav tau SSAW lossis LSAW yeeb nkab rau kev pabcuam siab. Ib qho yuam kev feem ntau yog txuas cov qib mus rau EN 10219, uas tau npog qhov txias txias - tsim welded structural hollow seem. P265TR2 belongs rau tsev neeg siab yeeb nkab: EN 10216-2 rau seamless yeeb nkab thiab EN 10217-2 rau hluav taws xob welded yeeb nkab, nrog EN 10217-5 npog submerged arc welded siab yeeb nkab.
Ntsiab Cai
P265TR2 yog qib siab- hom phiaj, tsis yog qib qauv.
Tus naj npawb 265 yog hais txog qhov tsawg kawg nkaus tawm lub zog ntawm 265 MPa.
TR2 txhais tau hais tias cov yeeb nkab tau xa nrog kev sim ntawm -20 C.
Rau SSAW siab yeeb nkab, tus txheej txheem tswj hwm yog EN 10217-5.
EN 10219 yog tus qauv ntawm cov qauv hollow seem thiab tsis sau cov qib P-.
P265TR2 txhais li cas
Lub npe lov raws li hauv qab no: P qhia txog kev thov siab, 265 yog qhov tsawg kawg nkaus yield zog nyob rau hauv megapascals rau phab ntsa thickness txog li 16 hli, thiab TR hais txog chav tsev thiab qhov kub tsis zoo. TR1 yuav tsum muaj kev ntsuam xyuas qhov cuam tshuam ntawm 20 C, thaum TR2 yuav tsum muaj kev ntsuam xyuas qhov cuam tshuam ntawm -20 C nrog lub zog nruab nrab ntawm 27 J longitudinal. Qhov kev xaiv TR2 yog tus qauv xaiv rau cov kav dej sab nraum zoov hauv huab cua txias.
Yam twg siv tau
Qee cov ntaub ntawv hauv online muab P265TR2 rau EN 10219, uas tsis raug. EN 10219 tshwj xeeb txias- tsim welded structural hollow seem nrog rau qib xws li S235JRH thiab S355J2H; nws tsis muaj P265TR2 nkag. Lub tsev raug rau qib yog tsev neeg siab yeeb nkab: EN 10216-2 rau seamless, EN 10217-2 rau hluav taws xob tsis kam thiab hluav taws xob fusion welded, thiab EN 10217-5 rau submerged arc welded yeeb nkab. Thaum cov yeeb nkab yog kauv welded, EN 10217-5 yog cov khoom tsim nyog.
Tshuaj muaj pes tsawg leeg
Kev txwv tsis pub muaj pes tsawg leeg rau P265TR2 yog carbon 0.20% max, manganese 0.40-1.40%, phosphorus 0.025% max, sulfur 0.020% max thiab silicon 0.35% max. Cov khoom seem tseem raug txwv. Cov ntsiab lus ntawm leej faj tswj tau txhawb nqa zoo weldability thiab los ntawm-thickness kev ua tau zoo, uas yog ib qho tseem ceeb rau welded siab ib feem.
Mechanical Properties
Yam tsawg kawg nkaus yield zog yog 265 MPa rau phab ntsa thickness mus txog 16 hli, nrog me ntsis nqi ntawm cov phab ntsa hnyav. Tensile lub zog yog nyob rau hauv thaj tsam 410-530 MPa, thiab elongation yog li ntawm 21% yam tsawg kawg nkaus nyob rau hauv txoj kev ntev. Charpy cuam tshuam lub zog rau TR2 zoo yog 27 J nruab nrab ntawm -20 C. Cov txiaj ntsig no tau txheeb xyuas ntawm cov khoom xa tuaj, thiab daim ntawv pov thawj zeb sau cov txiaj ntsig tiag tiag.
Vuam thiab Fabrication
P265TR2 yog cov pa roj carbon monoxide zoo nrog kev sib txuas zoo. Submerged arc vuam yog nqa tawm nrog cov qauv carbon steel consumables, thiab preheat feem ntau tsis xav tau rau nyias phab ntsa hauv khw muag khoom. Vim hais tias cov yeeb nkab yog ib feem ntawm lub siab, weld txheej txheem kev tsim nyog thiab tsis yog - kev kuaj kev puas tsuaj ua raws li cov khoom siv siab thiab cov qauv khoom: lub seam yog ultrasonically los yog radiographically soj ntsuam, thiab cov yeeb nkab yog hydrostatically kuaj.
Tej kev siv
P265TR2 SSAW yeeb nkab yog siv rau cov kav dej, cov kav dej txias, cov tshuab cua compressed thiab qis - mus rau - cov kav dej nruab nrab uas muaj 265 MPa yield qib txaus. Rau siab dua los yog siab kub, tus specifier txav mus rau qib xws li P355N los yog alloy qib zoo li 13CrMo4-5.
FAQ
Q: Puas yog P265TR2 txhais hauv EN 10219?
A: Tsis yog. EN 10219 npog txias - tsim cov qauv hollow seem. P265TR2 yog qib siab yeeb nkab uas tau teev tseg hauv EN 10216-2 thiab EN 10217-2, thiab SSAW siab yeeb nkab poob hauv qab EN 10217-5.
Q: TR2 txhais li cas hauv P265TR2?
A: TR2 yog qhov zoo tshaj plaws rau kev ntsuam xyuas ntawm -20 C nrog qhov nruab nrab yam tsawg kawg nkaus ntawm 27 J longitudinal. TR1 tsuas yog yuav tsum tau kuaj ntawm 20 C.
Q: Lub zog tawm ntawm P265TR2 yog dab tsi?
A: Qhov tsawg kawg nkaus yield zog yog 265 MPa rau phab ntsa thickness mus txog 16 hli, uas yog qhov twg tus naj npawb ntawm cov npe qib los ntawm.
Q: P265TR2 puas tuaj yeem muab los ua SSAW yeeb nkab?
A: Yog. Spirally submerged arc welded siab yeeb nkab tuaj yeem raug txiav txim rau EN 10217-5, uas suav nrog qib P265TR2 ntawm nws cov kev xaiv.
Q: Cov kev ntsuas twg siv rau P265TR2 SSAW yeeb nkab?
A: Tensile test, Charpy impact test for the TR2 quality, hydrostatic test and non-destructive test of the weld seam is the core requirements.
Q: Puas yog P265TR2 zoo ib yam li S355JR?
A: Tsis yog. S355JR yog cov qauv tsim los ntawm EN 10025-2 nrog 355 MPa tawm los, thiab nws tsis yog qib yeeb nkab siab. Qhov ob yuav tsum tsis txhob hloov pauv yam tsis muaj kev tsim kho dua tshiab.
