Nkag Siab ASTM A252 Qib 3: Cov Khoom Tseem Ceeb rau cov ntawv thov kev siv

Thaum nws los txog rau tsev thiab kev xaiv cov txheej txheem, cov khoom xaiv yog qhov tseem ceeb los xyuas kom muaj kev nyab xeeb, kav ntev, thiab ua haujlwm. Ib qho khoom siv uas yog ib qho kev hwm siab heev hauv kev lag luam yog ASTM A252 Qib 3 Hlau. Qhov kev qhia tshwj xeeb no yog ib qho tshwj xeeb tshaj yog rau kev tsim cov yeeb nkab uas siv nyob rau hauv cov hauv paus sib sib zog, ua rau lawv muaj ib qho tseem ceeb nyob rau ntau yam kev tsim kho cov haujlwm.

ASTM A252 yog cov qauv kev tsim kho los ntawm Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv (Astm) uas tau hais txog qhov yuav tsum tau ua rau welded thiab seamlessHlau Yeeb Nkabpawg. Qib Kawm 3 yog lub zog siab tshaj plaws nyob rau hauv no specification, nrog tsawg kawg los lub zog ntawm 50,000 psi (345 mpa). Qhov no ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau cov khoom muaj peev xwm siab thiab tiv taus deformation.

Ib qho ntawm cov ntsiab lus tseem ceeb ntawm Astm A252 Qib 3 yog nws qhov zoo heev weldability, uas tso cai rau txuag cov ntaub pua chaw thiab kev teeb tsa. Cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau no suav nrog cov pa roj carbon, manganese, thiab silicon, uas ua rau nws lub zog thiab tawv. Tsis tas li ntawd, cov ntaub ntawv tuaj yeem tiv thaiv cov mob hnyav, ua kom haum rau kev siv hauv marine thiab lwm cov chaw sib tw.

Qhov tseeb, Astm A252 qib 3 feem ntau siv hauv kev tsim kho ntawm cov choj, cov tuam tsev, thiab lwm yam phiaj xwm lwm qhov uas xav tau sib sib sib sib zog nqus. Nws lub peev xwm los txhawb cov khoom hnyav thaum tswj cov txheej txheem kev ncaj ncees yog qhov tseem ceeb rau kev ua haujlwm ntev thiab kev nyab xeeb ntawm cov qauv no.

Hauv cov ntsiab lus xaus,ASTM A252 Qib 3Hlau yog cov khoom tseem ceeb rau kev tsim kho kev tsim kho, muab lub zog thiab kev siv zog rau kev sib sib zog nqus daim ntawv thov sib sib zog nqus lub foundation. Nkag siab txog nws cov yam ntxwv thiab cov txiaj ntsig tuaj yeem pab txiav txim siab thaum xaiv cov khoom siv rau lawv cov haujlwm, ntau cov qauv txhim khu kev qha.