Q1: Dab tsi yog qhov feem ntau cov pa roj carbon steel yeeb nkab qib rau siab -kev pabcuam kub?
A1:ASTM A106 Qib B yog cov feem ntau siv seamless carbon steel yeeb nkab rau siab -kev pab kub (txog ~ 750℃F / 400℃). Nws muaj qhov tsawg kawg nkaus lub zog ntawm 35,000 psi thiab weldability zoo.
Q2: Dab tsi txawv API 5L Qib B los ntawm API 5L Qib X42?
A2:Thawj qhov sib txawv yog lub zog. API 5L Qib B muaj qhov tsawg kawg nkaus tawm los ntawm 35,000 psi, thaum X42 muaj 42,000 psi. X42 yog qhov siab dua -lub zog, qib microalloyed feem ntau siv rau hauv cov ntawv thov xa dej ntau dua.
Q3: ASTM A53 Qib B yeeb nkab siv rau dab tsi?
A3:ASTM A53 Qib B (Hom E lossis S) yog qhov dav dav - cov yeeb nkab siv rau kev siv tshuab thiab siab, nrog rau cov kav dej, dej, thiab cua. Nws yog feem ntau muaj raws li ob qho tib si welded (ERW) thiab seamless.
Q4: Qib twg yog qhov zoo rau kev siv yeeb nkab?
A4:ASTM A500 Qib B thiab Qib C yog tus qauv rau cov yeeb nkab cov qauv (qhov hollow structural seem - HSS). Qib C muaj zog dua (50,000 psi min yield vs . 46,000 rau Qib B) thiab feem ntau nyiam rau txhua kab thiab thauj khoom -cov tswv cuab.
Q5: Dab tsi yog qhov tseem ceeb ntawm ASTM A333 Qib 6 yeeb nkab?
A5:ASTM A333 Qib 6 yog seamless thiab welded yeeb nkab rau qis - qhov kub thiab txias. Nws yog qhov cuam tshuam- sim ua kom qis mus rau -50℃F (-45 degree), ua rau nws haum rau cov ntawv thov cryogenic xws li LNG nroj tsuag.
