API 5L tus qauv npog seamless steel kav thiab welded steel kav (xws li siab- zaus welded ERW, submerged arc welded LSAW, thiab lwm yam). Raws li qib zog, nws tuaj yeem muab faib ua ob yam khoom tshwj xeeb: PSL1 thiab PSL2. PSL1 yog theem pib thiab tsim nyog rau kev thauj mus los dav dav. PSL2 muaj cov kev cai nruj dua rau cov tshuaj muaj pes tsawg leeg, tawv, tsis yog - kuaj kev puas tsuaj, thiab lwm yam, thiab tsim nyog rau siab - siab, corrosive ib puag ncig lossis siab - thaj chaw muaj kev pheej hmoo. Feem ntau lub zog muaj xws li B, X42, X46, X52, X56, X60, X65, X70, X80, thiab lwm yam. Cov zauv sawv cev rau qhov tsawg kawg nkaus yield zog (unit: txhiab phaus ib square inch, ksi). Piv txwv li, qhov tsawg kawg nkaus tawm lub zog ntawm X52 yog 52 ksi (kwv yees li 358 MPa).
API 5L Qib thiab tshuaj muaj pes tsawg leeg
| Txuj | Yam khoom | Qib | Tshuaj muaj pes tsawg leeg(%) |
|---|---|---|---|
| API 5L GB/T9711.2 | PSL 1 | A lub L210 | C Tsawg dua los yog sib npaug rau 0.22, Mn Tsawg dua lossis sib npaug rau 0.90, P Tsawg dua lossis sib npaug rau 0.030, S Tsawg dua lossis sib npaug 0.030, Ceq Tsawg dua lossis sib npaug 0.25 |
| API 5L GB/T9711.2 | PSL 1 | B los yog L245 | C Tsawg dua los yog sib npaug rau 0.28, Mn Tsawg dua lossis sib npaug rau 1.20, P Tsawg dua lossis sib npaug rau 0.030, S Tsawg dua lossis sib npaug 0.030, Ceq Tsawg dua lossis sib npaug 0.25 |
| API 5L GB/T9711.2 | PSL 1 | X42 los yog L290 | C Less dua los yog sib npaug rau 0.28, Mn Tsawg dua los yog sib npaug rau 1.30, P Tsawg dua los yog sib npaug rau 0.030, S Less dua los yog sib npaug rau 0.030, Ceq Tsawg dua los yog sib npaug rau 0.25 |
| API 5L GB/T9711.2 | PSL 1 | X46 los yog L320 | C Less dua los yog sib npaug rau 0.28, Mn Tsawg dua los yog sib npaug rau 1.40, P Tsawg dua los yog sib npaug rau 0.030, S Less dua los yog sib npaug rau 0.030, Ceq Tsawg dua los yog sib npaug rau 0.25 |
| API 5L GB/T9711.2 | PSL 1 | X52 los yog L360 | C Less dua los yog sib npaug rau 0.28, Mn Tsawg dua los yog sib npaug rau 1.40, P Tsawg dua los yog sib npaug rau 0.030, S Less dua los yog sib npaug rau 0.030, Ceq Tsawg dua los yog sib npaug rau 0.25 |
| API 5L GB/T9711.2 | PSL 1 | 56x390 ua | C Less dua los yog sib npaug rau 0.28, Mn Tsawg dua los yog sib npaug rau 1.40, P Tsawg dua los yog sib npaug rau 0.030, S Less dua los yog sib npaug rau 0.030, Ceq Tsawg dua los yog sib npaug rau 0.25 |
| API 5L GB/T9711.2 | PSL 1 | X60 los yog L415 | C Less dua los yog sib npaug rau 0.28, Mn Tsawg dua los yog sib npaug rau 1.40, P Tsawg dua los yog sib npaug rau 0.030, S Less dua los yog sib npaug rau 0.030, Ceq Tsawg dua los yog sib npaug rau 0.25 |
| Yam khoom | Qib | C(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Cu(%) | V(%) | CEEB |
|---|---|---|---|---|---|---|---|---|---|---|
| PSL 2 | X42R or L245R | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug rau 1.20 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua los yog sib npaug li 0.40 | c | c | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X42R or L290R | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug rau 1.20 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua los yog sib npaug li 0.40 | Tsawg dua lossis sib npaug li 0.06 | Tsawg dua los yog sib npaug li 0.05 | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X42N or L245N | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug rau 1.20 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua los yog sib npaug li 0.40 | c | c | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X42N or L290N | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug rau 1.20 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua los yog sib npaug li 0.40 | Tsawg dua lossis sib npaug li 0.06 | Tsawg dua los yog sib npaug li 0.05 | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X46N or L320N | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug li 1.40 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua los yog sib npaug li 0.40 | Tsawg dua lossis sib npaug li 0.07 | Tsawg dua los yog sib npaug li 0.05 | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X52N or L360N | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug li 1.40 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.45 | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua los yog sib npaug li 0.05 | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X56N or L390N | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug li 1.40 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.45 | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua los yog sib npaug li 0.05 | Tsawg dua lossis sib npaug li 0.04 | Tsawg dua lossis sib npaug li 0.25 |
| PSL 2 | X60N or L415N | Tsawg dua lossis sib npaug li 0.24 | Tsawg dua lossis sib npaug li 1.40 | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.45 | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua los yog sib npaug li 0.05 | Tsawg dua lossis sib npaug li 0.04 | Kev sib tham |
Cr: Tshwj tsis yog tias pom zoo, tus lej ntawm V thiab Nb yuav tsum tsawg dua lossis sib npaug rau 0.06%.
API 5L kav dej, nrog rau lawv lub zog siab, siab tsis kam, thiab corrosion kuj, yog dav siv nyob rau hauv cov nram no:
Roj thiab roj tsheb thauj mus los: Onshore thiab subsea roj thiab roj sib sau ua ke thiab kev thauj mus los pipelines, ntev -kab kis kab mob;
Kev lag luam tshuaj: Kev thauj mus los ntawm cov xov xwm corrosive (xws li acidic gases thiab chemicals);
Lub nroog gas: nruab nrab thiab qis - cov kav dej siab hauv cov kav dej hauv nroog;
Cov phiaj xwm hluav taws xob: High-kub thiab siab- cov kav dej siab xws li LNG txais cov chaw nres tsheb thiab cov roj refineries.
