Nyob rau hauv lub cheeb tsam ntawm cov roj thiab cov pa roj av, cov qib PSL1 thiab PSL2 ntawm API 5L tus qauv ua haujlwm raws li ob qho tib si kev ua haujlwm, txhua qhov sib xws rau cov kev xav tau engineering cuam tshuam nrog cov qib kev pheej hmoo sib txawv. Qhov kev faib tawm no tsis yog sawv cev rau qhov sib txawv yooj yim ntawm qhov zoo tshaj thiab qhov tsis zoo; es, los ntawm kev sib txawv ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov kev sim ntsuas, nws tsim cov npoo kev nyab xeeb kom haum rau ntau hom kev pabcuam ib puag ncig.
Tsis txhob overspend rau koj qhov project pipeline. Kawm thaum API 5L PSL1 txaus thiab thaum PSL2 yuav tsum muaj kev nyab xeeb.Tau txais peb cov lus qhia xaiv kws tshaj lij tam sim no.
API 5L PSL1 vs. PSL2 Chemical Composition Comparison Table (Kev Ntsuas Kub %)
| Qib Steel | Qib Specification (PSL) | Hom kev tsim khoom | Cov pa roj carbon (C) Max % | Manganese (Mn) Max % | Phosphorus (P) Max% | Sulfur (S) Max % | Micro-alloying / Notes |
| Qib B | PSL1 | SMLS / WLD | 0.26 | 1.20 | 0.030 | 0.030 | Tsis muaj |
| PSL2 | SMLS / WLD | 0.22 | 1.20 | 0.025 | 0.015 | Nb, V, Ti adds | |
| X42 | PSL1 | SMLS / WLD | 0.26 | 1.30 | 0.030 | 0.030 | Tsis muaj |
| PSL2 | SMLS / WLD | 0.22 | 1.30 | 0.025 | 0.015 | Nb, V, Ti | |
| X52 | PSL1 | SMLS / WLD | 0.26 | 1.40 | 0.030 | 0.030 | Tsis muaj |
| PSL2 | SMLS / WLD | 0.22 | 1.40 | 0.025 | 0.015 | Nb, V, Ti | |
| X60 | PSL1 | SMLS / WLD | 0.26 | 1.40 | 0.030 | 0.030 | Tsis muaj |
| PSL2 | SMLS / WLD | 0.22 | 1.45 | 0.025 | 0.015 | Nb, V, Ti | |
| X65 | PSL1 | SMLS / WLD | 0.26 | 1.45 | 0.030 | 0.030 | Micro-Alloying pom zoo |
| PSL2 | SMLS / WLD | 0.22 | 1.45 | 0.025 | 0.015 | Mandatory Nb, V, Ti | |
| X70 | PSL1 | SMLS / WLD | 0.26 | 1.65 | 0.030 | 0.030 | Micro-Alloying pom zoo |
| PSL2 | SMLS / WLD | 0.22 | 1.65 | 0.025 | 0.015 | Mandatory Nb, V, Ti |
Yuav tsum tau Carbon Equivalent (CE) txwv rau PSL2
| Qib Steel | CEiiw (Rau C> 0.12%) Max % | CEpcm (Rau C Tsawg dua lossis sib npaug rau 0.12%) Max % |
| Qib B / L245 | 0.43 | 0.25 |
| X42 / L290 | 0.43 | 0.25 |
| X52 / L360 | 0.43 | 0.25 |
| X60 / L415 | 0.43 | 0.25 |
| X65 / L450 | 0.43 | 0.25 |
| X70 / L485 | 0.43 | 0.25 |
Kev sib piv ceev: API 5L PSL1 vs. PSL2
| Technical Feature | API 5L PSL1 | API 5L PSL2 |
| Steel Qib Range | A25-X70 | Qib B txog X120 |
| Tshuaj muaj pes tsawg leeg | Txheem kev lag luam txwv | Kev txwv nruj dua(Txo Carbon, P, thiab S) |
| Mechanical Properties | Yam tsawg kawg nkaus Yield & Tensile nkaus xwb | Qhia ntau yam(Min/Max) rau Yield & Tensile |
| Kev sim cuam tshuam | Tsis yuam | Yuav tsum tau(Charpy V-Kev ntsuas ntsuas) |
| Kho Vuam | Tso cai rau ntawm lub cev yeeb nkab | Txwv tsis pubpe cev |
| Traceability | Basic batch traceability | Tag nrho traceability(Tshav kub-rau-ib leeg yeeb nkab) |
| Daim ntawv pov thawj | EN 10204 3.1 | EN 10204 3.2(Yuav tsum tau) |
| Yield-rau-Tensile Ratio | Tsis Xav Tau | Max 0.93(Ua kom ductility) |
GNEE API 5L PSL1 thiab PSL2 pipeline kuaj thiab tshuaj xyuas
API 5L PSL1 thiab PSL2 pipeline ntim thiab xa khoom
FAQ
PSL2 txhais li cas ntawm cov yeeb nkab?
Cov kav dej no yog tsim los ntawm ob theem khoom tshwj xeeb hu ua PSL-1 thiab PSL-2. PSL-1 muab cov txheej txheem zoo rau cov kav dej. Txawm li cas los xij PSL-2 cov kav dej muajCov kev xav tau ntxiv rau cov tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, kev sib tw toughness thiab cov kev xav tau NDT ntxiv.
API spec 5L PSL1 yog dab tsi?
API 5L Qib B Yeeb Nkab PSL1 Chemical Composition
Rau 0.01% txo cov pa roj carbon ntau, qhov nce ntawm 0.05% Mn tau tso cai, nce tp qhov siab tshaj plaws ntawm 1.65% rau qib siab dua lossis sib npaug L245 lossis B, tab sis Tsawg dua lossis sib npaug L360 lossis X52; mus txog qhov siab tshaj ntawm 1.75% rau qib> L360 lossis X52, tab sis
