ASTM A269 thiab ASTM A249 Txuj
Thaum nws los txog rau kev xaiv lub raj zoo rau ib daim ntawv thov tshwj xeeb, koj yuav tsum xav txog ntau yam. Ib qho tseem ceeb tshaj plaws yog cov khoom siv qib, lwm qhov yog hom raj xav tau - seamless lossis welded. Txawm li cas los xij, muaj ib qho tseem ceeb ntxiv uas tuav qhov tseem ceeb - tus qauv siv los tsim cov raj.
Ob tus qauv nrov rau kev tsim cov hlau tsis huv yog ASTM A269 thiab ASTM A249. Txawm hais tias ob tus qauv no muaj qhov zoo sib xws, muaj qee qhov sib txawv tseem ceeb uas paub qhov txawv ntawm ib leeg.
- ASTM A 269 Cov Lus Qhia: Standard Specification rau Seamless thiab Welded Austenitic Stainless Steel Tubing rau General Service
- ASTM A 249 Cov khoom siv: Txuj Specification rau Welded Austenitic Steel Boiler, Superheater, Kub Exchanger, thiab Condenser Tubes
Qhov sib txawv ntawm ASTM A269 thiab A249
ASME SA 269 thiab SA 249 Khoom Qib
Ob leeg ASTM A269 thiab ASTM A249 siv rau austenitic stainless hlau raj uas yog tsim los rau kev tiv thaiv corrosion-ua haujlwm thiab kev pabcuam qis lossis kub. Txawm li cas los xij, qib khoom siv hauv txhua tus qauv sib txawv.
ASTM A269 feem ntau siv rau cov raj ua los ntawm 300 series stainless hlau qib, xws liTP304, TP304L, TP316, TP316L, TP317L thiab TP310S. Cov qib no muaj cov ntsiab lus ntau dua ntawm nickel thiab chromium, ua rau lawv tiv taus corrosion. Ntawm qhov tod tes, ASTM A249 feem ntau cuam tshuam nrog cov raj ua los ntawm 200 series stainless hlau qib, xws li TP201, TP202, thiab TP204. Txawm hais tias cov qib no pheej yig dua 300 series, lawv muaj cov ntsiab lus qis ntawm nickel thiab chromium, ua rau lawv tsis tshua muaj kev tiv thaiv corrosion.
Kev tsim khoom
Qhov thib ob tseem ceeb sib txawv ntawm ASTM A269 thiab ASTM A249 yog nyob rau hauv cov txheej txheem tsim khoom.ASTM A269 stainless hlau tubingyog tsim los ntawm txias-drawing seamless hlab los ntawm ib tug tuag thiab tshaj ib tug mandrel. Cov txheej txheem no ua kom lub ntsej muag smoother tiav thiab nruj dua qhov ntev ntev. Piv txwv li,ASTM A249 stainless hlau welded tubingyog tsim los ntawm kev sib sau thiab welding ib tug ntev strip ntawm stainless hlau rau hauv ib lub raj zoo. Cov txheej txheem no yog hu ua txoj kev welded thiab feem ntau ua rau weld seam defects thiab deg imperfections.
Daim ntawv thov
Qhov kawg sib txawv ntawm ASTM A269 thiab ASTM A249 yog daim ntawv thov. ASTM A269 raj yog siv feem ntau hauv cov tshuab hydraulic siab, cov nroj tsuag tshuaj, thiab lwm yam kev thov uas xav tau cov raj zoo. Hauv qhov sib piv, ASTM A249 cov raj siv feem ntau yog siv rau lub hom phiaj dav dav, xws li kev xa cov kua dej, gases, thiab chav.
Xaus
Hauv cov ntsiab lus, ASTM A269 thiab ASTM A249 yog ob qho qauv tseem ceeb uas tswj kev tsim cov hlau tsis huv. Txawm hais tias lawv muaj qee qhov zoo sib xws hauv cov peev txheej, lawv qhov sib txawv nyob ntawm qib khoom, txheej txheem tsim khoom, thiab daim ntawv thov. Kev txiav txim siab seb yuav siv qhov twg yog nyob ntawm qhov tshwj xeeb ntawm koj daim ntawv thov, xws li lub raj loj, phab ntsa thickness, thiab corrosion kuj.
