Thaum xaiv cov khoom siv ntawm cov roj av uas siv tau rau cov ntawv thov muaj, nws yog qhov tseem ceeb kom nkag siab txog qhov sib txawv ntawm cov qauv tseem ceeb xws liASTM A106, ASTM A53, ASTM A333, thiab API 5L Qib BCov. Txhua qhov kev cai tshwj xeeb yog tsim rau cov kev pabcuam tshwj xeeb- kub systems thiab siab}}} kub thiab xa hluav taws xob ib puag ncig. Qhov kev sib piv no muab cov txheej txheem meej ntawm lawv cov khoom, thiab siv cov xwm txheej zoo los pab cov kws tshaj lij los pab cov khoom lag luam engeters thiab cov neeg yuav khoom xaiv cov khoom siv rau lawv cov phiaj xwm.
ASTM A106 GR.BRausiab - kubthiabsiab -} qhov siabpipelines.
ASTM A53 GR.BRauTsawg -} kubthiabyam xwm txheejCov ntawv thov.
API 5L Gr.bRauPipeline kis(roj / roj) nrogPSL theem zoo.
ASTM A333 Gr.6RauTsawg - kubib puag ncig nrog kev cuam tshuam siab tsis kam.
| Txheem / Qeb | Daim Ntawv Thov Tseem Ceeb | Qhov ntsuas kub ntau | Cov Nta Tseem Ceeb | Kev siv tshuaj lom neeg (raug) | Cov Khoom Siv Neeg Kho Tshuab (Raug) |
|---|
| ASTM A106 Qib B | High - qhov kev pab kub xws li ntxiv ua kom zoo dua, cov roj boilers, thiab cov nroj tsuag fais fab | Txog li ~ 450 degree | Tsim los rau high - kub thiab high-}}}}}}} cov chaw ib puag ncig | C Tsawg dua lossis sib npaug 0.30%, MN 0.26%, p tsawg dua lossis sib npaug lossis sib npaug lossis sib npaug lossis sib npaug rau 0,0% | Tensile ntau dua lossis sib npaug rau 415 MPa, tawm ntau dua lossis sib npaug rau 240 MPA |
| ASTM A53 Qib B | General kho tshuab thiab qis {- qhov kev siv siab (dej, huab cua, roj, chav dej) | Ambient rau ~ 120 degree | Rau cov txheej txheem, tshuab, thiab qis {- cov kua tsheb thauj khoom; tuaj yeem welded los yog galvanized | C Tsawg dua los yog sib npaug rau 0.30%, mn tsawg dua los yog sib npaug los yog sib npaug lossis sib npaug lossis 0.05%, s sib npaug lossis sib npaug rau 0.045% | Tensile ntau dua lossis sib npaug rau 415 MPa, tawm ntau dua lossis sib npaug rau 240 MPA |
| API 5L Qib B | Roj, Roj, thiab Dej Kis Tau Dej Pip Ripelines (onshore / Offshore) | Ambient rau ~ 250 degree | Conforms rau api pipeline qauv (PSL1 / PSL2); Zoo dua Toughness thiab Weldability | C Tsawg dua los yog sib npaug rau 0.28%, mn tsawg dua los yog sib npaug los ntawm 1.20%, p tsawg dua lossis sib npaug lossis sib npaug los yog sib npaug 0.030% | Tensile ntau dua lossis sib npaug rau 415 MPa, tawm ntau dua lossis sib npaug rau 245 MPa |
| ASTM A333 Qib 6 | Tsawg - kub kev pab (cryogenic, lng, roj cia) | Down mus rau -45 degree | Kev cuam tshuam zoo heev ntawm tsawg kub | C Tsawg dua los yog sib npaug rau 0.30%, MN 0.26%, P Tsawg dua lossis sib npaug lossis sib npaug lossis nce ntau dua lossis sib npaug nrog 0.10% | Tensile ntau dua lossis sib npaug rau 415 MPa, tawm ntau dua lossis sib npaug nrog 240 MPa, cuam tshuam ntawm -45 degree |
