ASTM A671 yog ib qho tseem ceeb thiab dav lees paub tus qauv hauv ntiaj teb ntawm kev tsim cov yeeb nkab steel. Qhov kev taw qhia no muab cov ntsiab lus ntawm ASTM A671, qhia txog nws qhov tseem ceeb, cov yam ntxwv tseem ceeb, thiab nws daim ntawv thov hauv ntau qhov kev lag luam.
ASTM A671, lub npe hu ua "Standard Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures," yog ib tug specification tsim thiab tswj los ntawm ASTM International. Nws qhia txog qhov yuav tsum tau ua rau hluav taws xob fusion-welded steel kav uas siv rau hauv cov ntawv thov uas xav tau kev pabcuam ntawm atmospheric thiab qis dua.
Ib qho ntawm cov yam ntxwv tseem ceeb ntawm ASTM A671 yog nws lub hom phiaj ntawm kev siv hluav taws xob fusion vuam, uas ua kom cov kav dej zoo, ruaj khov. Cov kav dej no paub txog lawv txoj kev ntseeg siab, kev ua haujlwm zoo, thiab kev tiv thaiv corrosion, ua rau lawv zoo tagnrho rau ntau yam kev siv.
ASTM A671 cov kav dej pom kev siv dav hauv kev lag luam xws li petrochemical, tshuaj lom neeg, thiab hluav taws xob tsim hluav taws xob, uas lawv tau ua haujlwm rau kev thauj mus los ntawm ntau yam kua, suav nrog dej, roj, thiab roj. Lawv tshwj xeeb tshaj yog haum rau cov ntawv thov uas xav tau cov kav dej kom ua haujlwm ntawm qhov kub thiab txias, raws li tus qauv tsim los lav cov khoom siv thiab kev nyab xeeb ntawm cov kav dej.
Hauv cov ntsiab lus, ASTM A671 yog tus qauv tseem ceeb uas tswj kev tsim hluav taws xob-fusion-welded steel kav, kom ntseeg tau tias lawv ua tau raws li cov kev cai nruj ntawm kev lag luam uas cov kav dej ruaj khov thiab ruaj khov yog qhov tseem ceeb rau kev nyab xeeb thiab ua haujlwm tau zoo. Nws ua raws li cov txheej txheem tsim khoom zoo ua rau nws muaj kev ntseeg siab hauv ntau qhov chaw thoob ntiaj teb.
Cim npe nrov: Tuam Tshoj astm a671 manufacturers, lwm tus neeg, Hoobkas