Carbon steel kav muaj nyob rau hauv ntau qib, thiab qib ntawm carbon steel yeeb nkab yog hais txog nws muaj pes tsawg leeg thiab txhua yam khoom. Cov qib feem ntau siv cov pa roj carbon steel kav yog ASTM A53, ASTM A106, ASTM A333, thiab API 5L.
ASTM A53: Qib no yog tus qauv tshwj xeeb rau cov yeeb nkab dub thiab kub-dipped, zinc-coated, welded, thiab seamless steel yeeb nkab. Nws npog seamless thiab welded dub thiab kub-dipped galvanized steel yeeb nkab ntawm ntau qib, nrog rau Qib A thiab Qib B. Qib B yog qib feem ntau siv hauv ASTM A53 specification.
ASTM A106: Qib no yog cov qauv tshwj xeeb rau seamless carbon steel yeeb nkab rau kev pabcuam kub. Nws npog seamless carbon steel yeeb nkab rau high-temperature daim ntaub ntawv, xws li refineries thiab cov nroj tsuag uas siab kub yog txuam nrog. ASTM A106 Qib B yog qib siv dav hauv cov lus qhia no.
ASTM A333: Qib no yog cov qauv kev qhia tshwj xeeb rau seamless thiab welded steel yeeb nkab rau kev pabcuam kub. Nws npog nominal (nruab nrab) phab ntsa tuab yeeb nkab ua los ntawm cov pa roj carbon tsawg. Cov qib ntawm ASTM A333 yeeb nkab suav nrog Qib 1, Qib 3, thiab Qib 6, nrog Qib 6 yog qhov feem ntau siv rau cov ntawv thov kub.
API 5L: Qhov kev qhia tshwj xeeb no tau siv dav rau cov kab yeeb nkab hauv kev lag luam roj thiab roj. Nws npog seamless thiab welded steel yeeb nkab rau kev thauj mus los ntawm roj, roj, thiab dej. API 5L yeeb nkab qib muaj xws li Qib B, X42, X46, X52, X56, X60, X65, X70, X80, thiab lwm yam, nrog Qib B yog qib feem ntau siv.
