API 5L sib npaug li cas?
ASTM A106 B
API 5L Qib B yeeb nkab yog cov kav dej dav dav rau cov roj thiab cov kav dej xa mus. Kuj hu ua L245 yeeb nkab, xa mus rau ISO 3183, muaj npe rau qhov tsawg kawg nkaus yield zog ntawm 245 MPa (355, 000 Psi). Cov ntaub ntawv sib npaug ASTM A106 B lossis ASTM A53 B, nrog cov txiaj ntsig zoo sib xws ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab thiab kev siv.
API 5L Qib B yeeb nkab yog cov kav dej dav dav rau cov roj thiab cov kav dej xa mus. Kuj hu ua L245 yeeb nkab, xa mus rau ISO 3183, muaj npe rau qhov tsawg kawg nkaus yield zog ntawm 245 MPa (355, 000 Psi). Cov ntaub ntawv sib npaug ASTM A106 B lossis ASTM A53 B, nrog cov txiaj ntsig zoo sib xws ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab thiab kev siv.
API 5L B npog PSL1, PSL2, cov kev pabcuam qaub rau cov kav dej hauv hiav txwv thiab sab nraud. Fabrication hom muaj xws li seamless thiab welded. PSL1, PSL2 thiab cov kev pabcuam kua qaub, feem ntau yog siv PSL1 thiab sib npaug rau ASTM A106 B thiab A53 B.
API 5L Class B yeeb nkab yog cov khoom siv feem ntau
API 5L Qib B, ASTM A106 Qib B thiab A53 B, peb cov no yog cov khoom siv feem ntau siv hauv kev tsim cov kav dej lossis kev lag luam roj, roj thiab kua tsheb thauj mus los.
ASTM 106 cov kav dej xa mus rau cov pa roj carbon steel kav uas tsim los ntawm kub-kuav los yog txias-draw (dov) seamless yam.
ASTM A53 Yeeb Nkab npog welded thiab seamless steel yeeb nkab ua los ntawm cov ntaub ntawv dub thiab qee zaum kub-dip galvanized (galvanized).
