Qhov txawv ntawm Astm A53 thiab A252 yog dab tsi?

ASTM A252 yeeb nkab yog dab tsi?

ASTM A252 yog ib qho kev cai lij choj uas tau tsim los ntawm American Society for Testing and Materials (ASTM), tshwj xeeb rau cov kav hlau siv rau hauv kev tsav pawg thiab cov ntawv thov txhawb nqa cov qauv tob. Cov qauv no nruj me ntsis teev cov tshuaj lom neeg sib xyaw, cov khoom siv kho tshuab, kev kam rau siab ntawm qhov ntev thiab cov txheej txheem sim ntawm cov kav hlau, kom ntseeg tau tias lawv cov qauv zoo heev, kev ruaj khov thiab lub peev xwm thauj khoom. Nws yog qhov kev xaiv zoo tshaj plaws rau cov haujlwm hauv paus xws li Choj, tsev siab thiab chaw nres nkoj.

Qhov Loj ntawm Cov Yeeb Nkab Astm A252qhov ntev thiab cov lus qhia

Cov kav dej ASTM A252 raug muab faib ua peb qib raws li qhov yuav tsum tau muaj zog: GR 1, GR 2, thiab GR 3, ntawm cov qib GR 3 muaj lub zog siab tshaj plaws. Nws qhov loj me yog hloov tau thiab tuaj yeem ua tau raws li ntau yam kev xav tau ntawm engineering.

Txoj kab uas hla sab nraud (OD): Txij li 6 ntiv tes mus txog 60 ntiv tes, thiab txawm tias qhov loj dua tuaj yeem tsim tau.

Phab ntsa tuab (WT): Feem ntau ntawm 0.188 nti thiab 0.500 nti, thiab tuaj yeem hloov kho raws li qhov yuav tsum tau ua ntawm kev sib zog thiab kev khoov.

Ntev: Qhov ntev txheem yog 20 feet lossis 40 feet. Kev tsim khoom tshwj xeeb kuj tseem txhawb nqa raws li qhov yuav tsum tau ua ntawm qhov project.

Qhov ntau thiab tsawg no ua kom cov engineers xaiv tau cov lus qhia zoo tshaj plaws rau cov haujlwm tshwj xeeb.

ASTM A252 yeeb nkab siv rau ntau yam kev siv, suav nrog:

1. Kev Tso Pob Zeb: Cov kav dej no feem ntau siv ua cov pob zeb hauv av hauv cov haujlwm tsim kho kom muaj kev ruaj khov thiab txhawb nqa rau lub tsev.
2. Choj: Lub zog thiab kev ruaj khov ntawm ASTM A252 yeeb nkab ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev tsim choj, qhov twg nws tuaj yeem tiv taus cov khoom hnyav thiab cov xwm txheej ib puag ncig.
3. Cov Qauv Hiav Txwv: Qhov kev tiv thaiv xeb ntawm cov kav dej no tso cai rau lawv siv rau hauv cov ntawv thov hiav txwv xws li docks thiab piers.
4. Roj thiab Roj Av: Vim nws txoj kev tsim kho muaj zog, ASTM A252 yeeb nkab kuj tseem siv rau hauv kev lag luam roj thiab roj av los thauj cov kua thiab cov pa roj.

Hauv kev xaus lus

Hais yooj yim xwb, ASTM A252 yeeb nkab yog ib qho tseem ceeb rau ntau yam kev siv hauv kev tsim kho, ua rau muaj kev ntseeg siab thiab lub zog. Lub Hoobkas no hauv Cangzhou, Hebei Xeev, yog lub tuam txhab tsim hom yeeb nkab no, ua kom nws cov khoom ua tau raws li cov qauv zoo tshaj plaws. Nrog kev cog lus rau kev ua tau zoo thiab kev tsom mus rau kev tsim kho tshiab, lub tuam txhab tseem ua lub luag haujlwm tseem ceeb hauv kev tsim kho thiab kev tsim kho vaj tse. Txawm hais tias koj koom nrog hauv qhov project loj lossis xav tau kev daws teeb meem yeeb nkab txhim khu kev qha, ASTM A252 yeeb nkab yog qhov kev xaiv zoo rau koj cov kev xav tau.