** 1. Dab tsi yog P265Gh cov khoom? **
P265GHGH yog tus qauv European tsis -} alllok qib tshwj xeeb tsim rau lub nkoj siab thiab cov ntawv thov boiler. Tus "P" sawv rau "lub hom phiaj siab," tus lej "265" qhia qhov tsawg kawg nkaus rau kev siv lub zog rau kev nce qib siab ("G" rau cov khoom siv kub thiab " Nws tau txhais raws li cov EN 10028-2 txuj ci. Cov khoom no muaj cov khoom siv weldability zoo thiab muaj kev tsim kho thiab siv tau rau lub nkoj siab zoo li lub nkoj siab, thiab cov khoom siv hluav taws xob, ua haujlwm ntawm cua sov uas kub siab.
** 2. P265Ghghghghghghghghghghghghghghghghghghoghoghghoghoghogrogy? **
Qhov ze tshaj plaws thiab feem ntau tau lees txais sib npaug rau P265GH hauv Asme (Asmeskas haiv neeg ntawm cov neeg kho tshuab engineers) code yog ** sa-516 qib 70 **. Ob qho tib si yog cov hlau hlau siv rau cov hlab ntsha siab thiab muaj cov yam ntxwv zoo sib xws, tshwj xeeb tshaj yog tau tshwm sim thiab lub zog tensile. Lwm qhov ua tau sib npaug, txawm hais tias tsawg dua rau kev sib txuam nrog cov kev siv tshuaj ntau ntxiv vim yog cov kev sib tw me me hauv kev siv tshuaj lom neeg cov cai siv tshuaj lom neeg. Kev xaiv zaum kawg rau txoj haujlwm Asme yuav tsum tau ua los ntawm tus kws tsim txuj ci tsim nyog raws li cov kev xav tau ntawm ASME boiler thiab siab lub siab code (BPVC).
** 3. Dab tsi yog qhov txawv ntawm P235Gh thiab P265GHGE? **
Qhov sib txawv ntawm P235GH thiab P265Gh tau dag nyob rau hauv lawv ob ** cov kws kho tshuab muaj zog **. Tus lej hauv lawv txoj kev tsim tawm qhia qhov tsawg kawg nkaus muaj zog: P235GH muaj tsawg kawg ntawm 236, thaum P265GHGE muaj qhov tsawg kawg zog zog ntawm 265 MPa. Yog li, P265GHGHGH muab ntau ntau kev tiv thaiv kom deformation hauv qab cov neeg kho tshuab thauj khoom thiab sab hauv. Yuav kom ua tiav qhov siab dua lub zog, P265GH yog muaj cov pa roj carbon ntau dua (c) thiab manganese (mn) cov ntsiab lus piv rau P235GH. Qhov no feem ntau txhais tau tias P265GHGH yuav muaj marginalally tsawg weldabilability thiab formability tshaj li p235gh, txawm hais tias ob leeg yog qhov zoo rau kev siv vuam. Qhov kev xaiv ntawm lawv nyob ntawm kev tsim tsim thiab kev xav tau ntawm daim ntawv thov.
** 4. Dab tsi yog qib ntawm cov txiv ntseej khiab mis? **
Seamless kav yog tsim nyob rau hauv ntau cov qib kawm kom haum rau cov ntawv thov sib txawv. Cov qhab nia tau txhais los ntawm ntau yam qauv thoob ntiaj teb, feem ntau:
* ** Carbon Bades: ** Xws li ANTM A106 qib A, B, C; API 5L Qib A, B, X42 mus rau X120; ASTM A53 Qib A, B; EN 10216-1 P195GH, P235GH, P265GH.
* ** Alloy Steel Qib: ** Xws li ASTM A335 qib P92 (chrome {{molybdenum almoyts rau high}}} kub kev pab).
* ** Xws li cov qauv hlau stainless: ** Xws li ASTM A312 TP31L, TP326 / 316L, TP347 (ib feem ntawm 300 series stainless hlau).
* ** Super Duplex Stainless hlau: ** Xws li UNS Uns S31803 (2205) thiab UNF UNL UNAT UNFENS S32750 (2507).
* ** Xwsliel Aloble Qeb: ** Xws li Inconel (piv txwv li, 600, 625), Incoloy (piv txwv li, 825), Hastelloy (piv txwv li C276).
** 5. Puas yog A53 Qib B Yeeb Nkab Seamless? **
Yog lawm, ** ASTM A53 qib A53 Qib B Yeeb Nkab muaj nyob rau hauv ob leeg ua tsis tau thiab welded (erw - hluav taws xob welded) **. A53 tus qauv npog rau ob hom kev tsim qauv. Yog li ntawd, nws yog qhov tseem ceeb kom qhia "AVEM A53 qib B Seamless" thaum xaj yog tias seamless version yog xav tau rau koj daim ntawv thov. Lub seamless version feem ntau yog siv rau cov ntawv thov siab dua, thaum lub hom phiaj welded yog tsim nyog rau kev siv dej siab zoo li cov kav dej siab zoo li cov kav dej siab thiab kev siv qauv txheej txheem.
