1. Q: Dab tsi yog "carbon sib npaug" (CE), thiab vim li cas nws tseem ceeb rau vuam A106 Gr. B?
A: Carbon sib npaug (piv txwv li, CE IIW=C + Mn/6 + ...) yog ib qho qauv los ntsuas qhov hardenability thiab weldability ntawm hlau. CE qis dua (A106 Gr. B feem ntau muaj CE ~ 0.35-0.45%) qhia tias weldability zoo dua nrog qis dua ntawm Heat-Afected Zone (HAZ) tawg.
2. Q: Kuv puas tuaj yeem siv ASTM A135 rau siab -siab hydraulic kab?
A: Tsis yog. ASTM A135 yog ERW yeeb nkab rau dav dav, qis- siab lub hom phiaj (piv txwv li, conduit, qis- siab zog). Nws tsis yog npaj rau siab - cov ntaub ntawv siv hluav taws xob siab. ASTM A106 lossis mechanical tubing (A513) yuav tsim nyog dua.
3. Q: Dab tsi yog daim ntawv thov tseem ceeb ntawm ASTM A178 Qib A / C yeeb nkab?
A: Qhov no yog qhov tsawg- carbon, hluav taws xob-kuj-welded yeeb nkab tshwj xeeb tsim los rau boiler raj, superheater raj, thiab cov cua kub exchanger raj uas siab - kub yuav tsum tau.
4. Q: Dab tsi yog qhov tseem ceeb ntawm cov tshuaj sib txawv ntawm API 5L Qib B thiab X42?
A: X42 yog qib siab zog nrog qhov tsawg kawg nkaus lub zog ntawm 42,000 psi. Chemically, nws yuav muaj me ntsis siab dua carbon thiab manganese kom ua tiav lub zog no, tab sis lub ntsiab sib txawv yog nyob rau hauv guaranteed txhua yam khoom.
5. Q: Dab tsi yog "dub steel yeeb nkab" xa mus rau?
A: Nws hais txog qhov ua tsis tiav, tsis yog -galvanized steel yeeb nkab nrog cov hlau oxide tsaus nti ntawm nws qhov chaw. Cov qib uas muag raws li "dub yeeb nkab" suav nrog ASTM A53 thiab A106.
