Q: Dab tsi yog qhov kev soj ntsuam saum npoo rau API 5L X52 seamless steel kav?
A: Qhov saum npoo ntawm API 5L X52 seamless steel kav yuav tsum tsis muaj kab nrib pleb, quav, khawb, qhov thiab lwm yam tsis xws luag. Qhov saum npoo roughness yuav tsum ua tau raws li tus qauv yuav tsum tau ua, thiab lub thickness ntawm oxide txheej yuav tsum tau tswj nyob rau hauv ib tug tsim nyog ntau yam.
Q: Dab tsi yog qhov dav dav ntawm ASTM A106 Qib B seamless steel kav?
A: Qhov dav dav dav dav dav yog 1/2 nti (12.7 hli) txog 24 ntiv tes (609.6 hli), thiab phab ntsa tuab ntawm 1.65 hli txog 76.2 hli, uas tuaj yeem hloov kho raws li kev xav tau ntawm engineering.
Q: Dab tsi yog qhov txawv ntawm seamless steel kav ntawm GB / T 8163 thiab GB / T 3087?
A: GB / T 8163 yog siv rau kev thauj dej dav dav, nrog rau kev xav tau qis dua ntawm qhov kub thiab txias (qhov kub siab tshaj plaws tsawg dua lossis sib npaug li 200 degree); GB / T 3087 yog siv rau cov boilers qis thiab nruab nrab siab, nrog rau cov kev xav tau siab dua ntawm siab - qhov kub thiab txias tsis kam (qhov kub siab tshaj plaws tsawg dua lossis sib npaug li 450℃).
Q: Dab tsi qib ntawm seamless steel yeeb nkab haum rau siab -kub cov kav dej (kub siab dua lossis sib npaug li 500 degree)?
A: ASTM A335 P91 lossis P11 seamless steel kav yog tsim nyog. Lawv muaj qhov zoo siab -kub creep tsis kam thiab oxidation tsis kam, uas tuaj yeem ua haujlwm ruaj khov rau lub sijhawm ntev nyob rau hauv siab - kub thiab siab - cua txias.
Q: API 5L X80 seamless steel kav puas siv tau rau cov kav dej?
A: Yog, tab sis nws tsis raug nqi - zoo. API 5L X80 yog lub siab - lub zog kav hlau, uas yog siv rau siab - roj thiab roj xa mus. Rau cov kav dej zoo tib yam, GB / T 8163 20# seamless steel kav lossis cov kav dej welded yog kev lag luam ntau dua.
