1. Q: Dab tsi yog qhov kev qhia tshwj xeeb tshaj plaws rau seamless carbon steel yeeb nkab hauv siab -kev pabcuam kub?
A:ASTM A106 (Qib A, B, C). Qib B yog qhov siv dav tshaj plaws rau qhov kub txog li 750 ° F (399 ° C).
2. Q: Qhov txawv ntawm ASTM A53 thiab ASTM A106 yeeb nkab yog dab tsi?
A:A53 npog ob qho tib si welded (Hom E, ERW) thiab seamless (Hom S) yeeb nkab rau kev siv dav dav, thaum A106 tshwj xeeb rau seamless yeeb nkab npaj rau siab - qhov kev pab kub.
3. Q: Cov pa roj carbon steel yeeb nkab qib twg yog qhov zoo dua rau kev siv qis - kub thiab yog vim li cas?
A:ASTM A333 Qib 6. Nws yog ib qho kev tua zoo-cov hlau uas muaj kev cuam tshuam zoo zog ntawm qhov kub thiab txias li -50 ° F (-45 ° C).
4. Q: Dab tsi ua rau graphitization hauv cov kav dej carbon steel thiab qib twg yog qhov cuam tshuam tshaj plaws?
A:Ntev -lub sij hawm raug kub siab tshaj 800 ° F (427 ° C) ua rau carbon los ua graphite nodules. ASTM A106 Gr. A / B yog raug; Gr. C muaj kev tiv thaiv me ntsis zoo dua.
5. Q: Thaum twg yog ASTM A53 Hom F (qhov cub taub qab-welded) yeeb nkab feem ntau siv?
A:Rau qis- siab, tsis yog- daim ntawv thov tseem ceeb xws li laj kab, tes tuav, lossis cov dej ntws, qhov twg cov welded sab hauv du tau txais.
