ASTM-SA516Gr60Z35 steel phaj tsis pom kev:
1. SA516Gr60 tus qauv ua haujlwm: American ASTM, ASME cov qauv
2. SA516Gr60 belongs rau lub siab kub siab lub nkoj nrog carbon steel phaj
3. Tshuaj muaj pes tsawg leeg ntawm SA516Gr60
C≤0.30, Mn: 0.79-1.30, P≤0.035, S: ≤0.035, Si: 0.13-0.45.
4. Mechanical zog ntawm SA516Gr60
SA516Gr60 tensile lub zog ntawm 70 txhiab phaus / square inch, cov ntsiab lus tseem ceeb yog C Mn Si ps tswj xyuas nws cov kev ua tau zoo.Lwm yam kab kawm tsawg dua.Asme Standard Specification rau carbon steel daim hlau rau nruab nrab thiab tsis kub siab cov hlab ntsha.
5. Kev xa khoom ntawm SA516Gr60
SA516Gr60 steel phaj feem ntau yog muab rau hauv lub xeev dov, steel phaj kuj tuaj yeem ua tau zoo lossis kev ntxhov siab, lossis normalizing ntxiv rau kev ntxhov siab.
SA516Gr60 thickness> 40mm steel phaj yuav tsum normalized.
Tshwj tsis yog txwv tsis pub teev los ntawm tus neeg thov, lub thickness ntawm steel phaj ≤1.5in, (40mm), thaum muaj cov kev cai toughness, yuav tsum normalized.
6. SA516Gr60 yog siv los tsim ib txheej txheej coil vuam thawv, ntau txheej kub lub tes tsho coil vuam thawv, ntau txheej hnav khaub ncaws ntim thiab lwm yam ob thiab peb hom ntim thiab cov hlab ntsha uas tsis tshua muaj siab.Siv dav hauv roj av, tshuaj lom neeg kev lag luam, chaw nres tsheb fais fab, boiler thiab lwm yam haujlwm, siv rau hauv kev tsim cov reactors, heat exchangers, separators, spherical tanks, oil and gas tanks, liquefied gas tanks, boiler drum, liquefied petroleum steam cylinders, hydropower stations. high-pressure dej kav, turbine volute thiab lwm yam khoom siv thiab cov khoom siv.cov
7. Thaum lub austenite txias maj mam (sib npaug rau qhov cub txias, raws li qhia hauv daim duab 2 V1), cov khoom hloov pauv yog ze rau cov qauv sib npaug, uas yog pearlite thiab ferrite.Nrog rau qhov nce ntawm qhov txias txias, uas yog, thaum V3> V2> V1, lub undercooling ntawm austenite maj mam nce, thiab tus nqi ntawm precipitated ferrite yuav tsawg thiab tsawg, thaum lub pearlite maj mam nce, thiab cov qauv ua finer.Nyob rau lub sijhawm no, ib qho me me ntawm precipitated ferrite feem ntau yog muab faib rau ntawm thaj tsam lis.
8. Yog li ntawd, cov qauv ntawm v1 yog ferrite + pearlite;Cov qauv ntawm v2 yog ferrite + sorbite;Lub microstructure ntawm v3 yog ferrite + troostite.
9. Thaum tus nqi cua txias yog v4, ib qho me me ntawm network ferrite thiab troostite (qee zaum me me ntawm bainite tuaj yeem pom) yog precipitated, thiab austenite feem ntau yog hloov mus rau hauv martensite thiab troostite;Thaum tus nqi cua txias v5 tshaj qhov tseem ceeb ntawm qhov txias txias, cov hlau tau hloov mus rau hauv martensite.
10. Kev hloov pauv ntawm cov hlau hypereutectoid zoo ib yam li cov hlau hypoeutectoid, nrog qhov sib txawv uas ferrite precipitates thawj zaug thiab cementite precipitates thawj zaug hauv lub qub.
Post lub sij hawm: Dec-14-2022
