1. Q: Dab tsi yog cov ntawv thov rau ASTM A106 Qib B seamless yeeb nkab?
A:ASTM A106 Qib B yog qhov nruab nrab - carbon steel (kwv yees li 0.30% C) siv rau siab - qhov kub thiab txias. Nws feem ntau yog siv rau hauv cov chaw tsim hluav taws xob, refineries, thiab cov chaw tsim khoom lag luam rau kev thauj cov ncu, dej, thiab cov txheej txheem kua dej ntawm qhov kub thiab txias.
2. Q: Dab tsi txawv API 5L Qib B los ntawm lwm qib yeeb nkab?
A:API 5L Qib B yog tus qauv tshwj xeeb rau cov kab yeeb nkab siv hauv kev lag luam roj thiab roj rau kev xa cov roj, dej, thiab roj. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 35,000 psi (241 MPa) thiab paub txog nws qhov zoo weldability thiab formability, ua rau nws haum rau cov kav dej.
3. Q: Vim li cas A53 Qib B dav siv rau cov qauv thiab qis -cov kav dej siab?
A:A53 Qib B yeeb nkab, muaj raws li ERW (Electric Resistance Welded) lossis seamless, muaj qhov sib npaug zoo ntawm lub zog (tsawg kawg yield zog ntawm 35,000 psi) thiab nqi. Nws tsim nyog rau kev siv tshuab thiab kev siv siab, nrog rau cov pa zoo tib yam, dej, thiab cua kab. Nws cov ntsiab lus qis dua li A106 Qib B txhim kho weldability.
4. Q: Dab tsi yog tus yam ntxwv tseem ceeb ntawm ASTM A333 Qib 6 qis-kub yeeb nkab?
A:ASTM A333 Qib 6 yog npib tsib xee- alloyed carbon steel (kwv yees li 3.5% Ni) tsim los rau qis- kev pabcuam kub mus txog -50℃F (-45℃). Nws alloying txhim kho toughness thiab tiv thaiv nkig tawg nyob rau hauv cryogenic daim ntaub ntawv xws li LNG chaw.
5. Q: Thaum twg koj yuav qhia ASTM A500 Qib C rau cov qauv tubing?
A:ASTM A500 Qib C (txias- ua welded carbon steel tubing) tau teev tseg thaum xav tau lub zog siab dua rau kev siv cov qauv xws li cov tsev thiab cov txuas hniav. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 50,000 psi (345 MPa), muab lub zog zoo dua - rau - qhov hnyav piv li Qib A lossis B.
