API 5L yog tus qauv tsim los ntawm American Petroleum Institute (API) thiab feem ntau yog siv rau cov roj thiab cov kav dej. Nws qhia txog qhov yuav tsum tau ua rau kev tsim khoom, tshuaj xyuas, thiab kev lees paub ntawm seamless steel kav kom muaj zog txaus thiab kev tiv thaiv corrosion hauv kev ua haujlwm hnyav. API 5L GRB seamless steel kav feem ntau tsim los siv cov txheej txheem kub dov lossis txias txheej txheem, thiab cov khoom siv feem ntau yog carbon hlau.
Lub zog tensile ntawm API 5L Qib B yog dab tsi?
Tensile zog: yam tsawg kawg 415 MPa
| Yield Properties a R t0,5 PSI Min |
Ntev ntev (hauv 2 hauv Af% min) |
Tensile Properties qib a Rm PSI Yam tsawg kawg nkaus |
Tensile Properties qib b Rm PSI Yam tsawg kawg nkaus |
|
|---|---|---|---|---|
| Gr B | 36,500 | c | 60,200 | 65,200 |
Qib B Pipe Tolerance Specification
| Tolerance ntawm qhov ntev | |||||
| OD Tolerance | WT kam rau ua | ||||
| A, B | X42 ~ X70 | ||||
| D<60.3mm | +0.41/-0.40mm | D<73mm | +20%/-12.5% | D<73mm | +15%/-12.5% |
| D>=60.3 hli | +0.75/-0.40mm | D>=73 hli | +15%/-12.5% | D>=73 hli | +15%/-12.5% |
Qib B Kab Pipe Chemical Compatibility Chart
| PSL1 | PSL2 | |||||||
|---|---|---|---|---|---|---|---|---|
| Gr | C | Mn | P | S | C | Mn | P | S |
| B | 0.27 | 1.30 | 0.05 | 0.03 | 0.24 | 1.20 | 0.020 | 0.010 |
Ntim thiab shipping
API 5L GRB yeeb nkab rau roj thiab roj Hoobkas
