Cov khoom siv dab tsi yog L245 yeeb nkab ua los ntawm?
API 5L Qib L245 Carbon Steel Seamless Pipes yogcarbon steel kav, nruj me ntsis tsim raws li API (AMERICAN PETROLEUM INSTITUTE) kom tau raws li cov neeg siv khoom xav tau. API 5L Qib L245 carbon steel kav yog muab nrog ntau qhov kawg kev sib txuas zoo li tsis yog- Kev ntxhov siab kawg thiab Sab Nraud Upset Ends.
API 5L B sib npaug li cas?
API 5L Qib B yeeb nkab yog ib hom yeeb nkab rau cov roj thiab cov kav xa hluav taws xob. Nws kuj hu ua L245 Yeeb Nkab xa mus rau ISO 3183, muaj npe los ntawm lub zog qis kawg nkaus 245 Mpa (35,500 Psi). Cov khoom sib npaugASTM A106 B lossis ASTM A53 B, uas muaj txiaj ntsig zoo sib xws ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev siv.
L245 Chemical Composition thiab Mechanical Property yog dab tsi
| Qib | C | Mn | P | S |
| L245 | Tsawg dua lossis sib npaug li 0.28 | Tsawg dua lossis sib npaug li 1.20 | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 |
|
Qib |
Yield zog |
Tensile zog |
Elongation% |
|
L245 |
|||
|
Ntau dua lossis sib npaug li 245 |
Ntau dua lossis sib npaug li 415 |
Ntau dua lossis sib npaug c |
|