1. Q: Dab tsi yog cov qib seamless yeeb nkab rau compressor chaw nres tsheb, khob- tawm nruas, thiab sib sau cov kab hauv roj & roj?
A: ASTM A106 Qib B yog cov neeg ua haujlwm rau cov ntawv thov siab no.
2. Q: Qib dab tsi ntawm API 5L yeeb nkab feem ntau siv rau loj - txoj kab uas hla, siab - cov kav dej tawm ntug dej hiav txwv?
A: High-qib steels zoo li API 5L X65, X70, lossis X80 hauv PSL2, feem ntau nrog kev txhim kho pob txha tawv.
3. Q: Tus qauv twg thiab qib npog seamless carbon steel yeeb nkab rau hydraulic systems?
A: ASTM A106 Qib B lossis qib tshwj xeeb ntawm cov raj raj zoo li A519 1020/1026 rau cov ntawv thov raug.
4. Q: Dab tsi yog qib qib rau fabricated steel yeeb nkab kab yeeb nkab rau API 5L?
A: API 5L Qib B (PSL1 lossis PSL2) yog lub hauv paus. Qib X42 txog X80 yog siv raws li tus qauv tsim.
5. Q: Lub ntsiab lus "H" txhais li cas hauv qib zoo li API 5L X52H?
A: Qhov "H" qhia tias cov khoom muaj feem xyuam rau cov kev pabcuam qaub (ua haujlwm rau Hydrogen Induced Cracking - HIC/Sulfide Stress Cracking - SSC). Nws muaj nruj dua tswj ntawm chemistry, hardness, thiab microstructure.
