A387 Gr91 vs SA387 Gr22: Uas Muaj Kev Ua Phem Zoo Dua?

Rau kev nkag siab zoo dua ntawm qhov kub thiab txias,A387 Qib 91 feem ntau tshaj SA387 Qib 22,Raws li Gr 91 tshwj xeeb yog tsim los nrog ntau dua chromium (9%) rau kev nkag siab zoo dua thiab tawg lub zog hauv kev tsim hluav taws xob siab thiab siab -temp ib puag ncig, thaum Gr 22 (2.25% Cr, 1% Mo) muaj kev nkag siab zoo tab sis qis dua me ntsis, txawm hais tias tseem nce siab, kev siv kub xws li kev xaiv boilers thiab tshav kub exchangers, ua Gr ntau dua 1.

Yog vim li cas Creep Resistance Matters rau Industrial Equipment

Creep yog qhov qeeb, mus tas li deformation ntawm hlau hauv qabsustained kub thiab siab-ib qho tseem ceeb tsis ua hauj lwm txaus ntshai rau cov cuab yeej ua haujlwm hauv:

• Kev tsim hluav taws xob (boilers, turbines)
• Petrochemical kev hloov pauv (steam methane hloov pauv, hydrocrackers)
• High-kub kub exchangers (plhaub-thiab- raj, phaj- hom)
• Cov hlab ntsha siab rau thermal ua

Rau GNEE lub plhaub -thiab- raj kub exchangers thiab siab hlab ntsha, creep resistance ncaj qha cuam tshuam rau cov khoom lifespan, kev nyab xeeb, thiab ua hauj lwm efficiency-tshwj xeeb tshaj yog nyob rau hauv cov txheej txheem nrog tas mus li kev pab cuam ntawm 500℃+ (xws li, hydrogen ntau lawm, crude roj refining).

Chemical Composition: Lub Foundation ntawm Creep Resistance

Qhov sib txawv tseem ceeb nyob hauvalloying ntsiabuas tswj grain ciam ciam teb ruaj khov thiab precipitate tsim- tseem ceeb rau tiv thaiv creep deformation.

Creep Resistance: Quantitative Performance Data

Creep resistance yog ntsuas los ntawmcreep rupture zog(qhov kev ntxhov siab ib yam khoom tuaj yeem tiv taus ua ntej tsis ua haujlwm ntawm qhov kub thiab lub sijhawm). Hauv qab no yog kev lag luam- tus qauv tus nqi (ASTM/ASME cov ntaub ntawv) uas qhia txog Gr91 txoj kev tswj hwm:

Daim Ntawv Thov: Thaum Xaiv Gr91 vs. Gr22

Xaiv A387 Gr91 Yog tias:

Cov cuab yeej ua haujlwm ntawm550℃+(piv txwv li, steam methane reformers, superheaters, siab - kub exchangers rau hydrogen ntau lawm).

Tsim kom muaj a10+ xyoo lifespannyob rau hauv kev kub ntxhov / kub tsis tu ncua (kev nkag yog hom kev ua tsis tiav).

Txoj haujlwm ua raws ASME Tshooj VIII (cov hlab ntsha siab) lossis ASME Tshooj I (boilers) -Gr91 tau lees paub tag nrho rau cov qauv no.

Cov ntawv thov suav nrog kev tsim hluav taws xob (coal/gas{0}} cov nroj tsuag raug rho tawm haujlwm), petrochemical cracking, lossis thermal processing nrog cov xwm txheej hnyav heev.

Xaiv SA387 Gr22 Yog tias:

Kev khiav hauj lwm kub yogTsawg dua lossis sib npaug li 550 degree(piv txwv li, nruab nrab-kub kub exchangers, hydrotreaters, qis- kev pabcuam hydrogen).

Tus nqi ua haujlwm yog qhov tseem ceeb (Gr22 yog 20-30% kev lag luam ntau dua Gr91).

Creep exposure yog tsawg heev (lub voj voog ua haujlwm luv luv, sib cuam tshuam siab).

Txoj haujlwm no qhia txog 2.25Cr-1Mo steel rau kev sib raug zoo nrog cov tshuab uas twb muaj lawm (xws li, refineries nrog cov cuab yeej cuab tam Gr22).

Thov Ib Daim Quote

Hu rau GNEE Steel hnub norau specifications, nqi, thiab customized kev daws teeb meem rau koj boiler thiab siab nkoj steel phaj yuav tsum.

Dab tsi yog qhov txawv ntawm SA 387 Qib 11 CL 1 thiab Chav Kawm 2?

Qhov txawv ntawm SA 387 Qib 11 Chav Kawm 1 thiab Chav Kawm 2 Phaj nyob hauv lawv cov khoom siv kho tshuab. Txawm li cas los xij, lawv ob leeg muaj tib yam tshuaj muaj pes tsawg leeg.Lub zog tensile thiab yield zog ntawm cov khoom siv hauv chav kawm 2 yog siab dua li ntawm chav kawm 1, qhov elongation rau chav kawm 1 yog siab dua piv rau chav kawm 2..

ASTM A387 Qib 22 sib npaug li cas?

Ntawm ASTM A387 Qib 22 sib npaug steel qib,SA387 Qib 22, 10CrMo9-10yog nrov tshaj li lwm yam sib npaug. SA387 Qib 22 steel yog raws li ASME SA387 / SA387M tus qauv. Kev ua haujlwm tshuaj lom neeg thiab kev ua haujlwm ntawm SA387 Qib 22 steel yuav luag zoo ib yam nrog ASTM A387 Qib 22 steel.

Dab tsi yog qhov txawv ntawm SA 516 GR 70 thiab SA 387 GR 11?

Piv nrog rau cov pa roj carbon steel daim hlau, SA 387 Gr 11 daim hlau muaj kev tiv thaiv corrosion thiab oxidation zoo dua thaum tuav lub zog tensile thiab tawm los. Piv rau SA 516 Gr 70 daim hlau,SA 387 Gr 11 daim hlau muaj kev tiv thaiv zoo rau oxidation thiab corrosion, ua rau lawv xaiv zoo dua rau siab - qhov kub thiab txias.

Cov khoom siv GR 91 yog dab tsi?

Qib 91 steel yog txhais ua acreep zog- txhim kho ferritic steel, Ameslikas tsim rau cov cua kub hloov cov raj hauv cov tshuab hluav taws xob ceev ceev, nrog rau cov kev hloov kho tshwj xeeb hauv cov tshuaj muaj pes tsawg leeg thiab tso cai rau kev ntxhov siab raws li kev paub dhau los, tshwj xeeb tshaj yog siv rau hauv cov nroj tsuag fossil thiab Generation IV nuclear daim ntaub ntawv.

Qhov txawv ntawm A182 thiab A387 yog dab tsi?

Ob leeg ASTM A182 qib F11 chav kawm 2 thiab ASTM A387 qib 22 steel yog hlau alloys. Lawv muaj 99% siab heev ntawm lawv qhov nruab nrab alloy muaj pes tsawg leeg. Muaj 32 cov khoom siv nrog cov txiaj ntsig rau ob qho khoom siv. Cov khoom muaj txiaj ntsig rau ib qho khoom siv xwb (1, hauv qhov no) tsis qhia.

GNEE Steel kuj muab ntau yam boilers thiab siab nkoj steel daim hlau, xws li A204 Qib B, A515 Qib 70, A537 Chav Kawm 1, SA387 Qib 11 Chav Kawm 1, P265GH, S537 Chav Kawm 2, P355Q, P275N, P355N, Q40R lwm yam yog tias koj xav paub ntau ntxiv txog hom steel daim hlau, koj tuaj yeem hu rau tus xov tooj sib tham ntawm +8615824687445 lossis xa email rau alloy@gneesteelgroup.com. Koj tuaj yeem sab laj nrog peb, thiab peb txaus siab los teb koj cov lus nug.