Q: Yuav ua li cas ASTM A53 yeeb nkab yuav tsum tau tuav thiab khaws cia?
A:Thaum thauj, zam kev sib tsoo thiab kev sib txhuam kom tsis txhob muaj kev puas tsuaj rau saum npoo. Cov kav dej yuav tsum muab cia rau hauv qhov chaw qhuav, qhov cua, kom deb ntawm tshav ntuj ncaj qha thiab dampness-2.
Q: Qhov txawv ntawm ASTM A53 thiab ASTM A500 yog dab tsi?
A:Thaum ob qho tib si tuaj yeem siv rau hauv cov qauv siv, ASTM A500 raj (uas muaj nyob rau hauv tib qhov ntau thiab tsawg NPS) yog qee zaum nyiam rau cov qauv siv-4.
Q: Puas muaj ib qho kev kho cua sov tshwj xeeb rau cov vuam seam ntawm ERW Qib B yeeb nkab?
A:Yog lawm, lub vuam seam ntawm hluav taws xob-kuj welded (Hom E) yeeb nkab hauv Qib B yuav tsum tau ua kom sov-kho tom qab vuam mus rau qhov tsawg kawg nkaus ntawm 1000 ° F [540 ° C] kom tsis muaj qhov tsis muaj martensite nyob-4.
Q: Dab tsi yog cov txheej txheem tsim khoom rau cov hlau siv hauv ASTM A53 yeeb nkab?
A:Cov hlau rau ob qho tib si seamless thiab welded yeeb nkab yuav tsum tau ua los ntawm ib los yog ntau tshaj ntawm cov txheej txheem hauv qab no: qhib-heart, hluav taws xob- cub tawg, los yog yooj yim-oxygen-4.
Q: Kuv tuaj yeem nrhiav qhov tseeb version ntawm ASTM A53 tus qauv?
A:Cov ntawv tshaj tawm tshiab tuaj yeem yuav los ntawm ASTM International lub vev xaib lossis cov neeg tsim khoom tso cai xws li AFNOR Editions. Raws li thaum ntxov 2024, ASTM A53 / A53M-24 yog cov nquag specification-5.
