1. Q: Dab tsi yog cov qib qis tshaj plaws ntawm - carbon steel yeeb nkab rau kev pabcuam dav dav?
A: Feem ntau yog ASTM A53 Qib B (Seamless / Welded), ASTM A106 Qib B (Seamless), thiab API 5L Qib B (PSL1). Rau cov qauv European, EN 10255 S235JRH thiab S275J0H tau dav siv.
2. Q: Qhov txawv ntawm ASTM A53 thiab ASTM A106 yog dab tsi?
A: Ob leeg npog qis- carbon steel, tab sis A106 tshwj xeeb rau kev kub siab - kev pabcuam kub (xws li, boilers, superheaters), thaum A53 yog rau kev dav - lub hom phiaj, qis dua - kev siv kub (xws li, kav dej, qauv).
3. Q: Dab tsi yog cov ntsiab lus ntawm cov pa roj carbon monoxide rau ASTM A106 Qib B?
A: Cov ntsiab lus carbon siab tshaj plaws yog 0.30% rau qib A, B, thiab C, nrog qib B yog qhov ntau tshaj. Qhov tseeb qhov ntau yog feem ntau 0.15% - 0.25%.
4. Q: Thaum twg kuv yuav tsum qhia API 5L Qib B yeeb nkab?
A: Nws yog feem ntau tau teev tseg rau kev xa khoom ntawm cov pa roj, dej, thiab roj hauv cov kav dej hauv kev thauj mus los ntawm cov roj av thiab kev lag luam ntuj. Nws yog qhov ntau heev rau cov kab sib kis thiab cov kab xa tawm.
5. Q: ASTM A53 Qib B cov yeeb nkab puas tuaj yeem siv rau kev pab cuam?
A: Nws tuaj yeem siv rau qhov qis- siab zog, tab sis rau kev ua haujlwm siab - kub / siab chav kab, ASTM A106 Qib B yog qhov kev xaiv zoo tshaj plaws thiab muaj kev nyab xeeb dua vim nws cov khoom siv tshuaj thiab cov khoom siv nruj dua.
