API 5L GRBnkag- theem steel yeeb nkabrau cov roj thiab cov kav dej xa mus rau API 5L tus qauv, nrogyield zog Ntau tshaj los yog sib npaug rau 240 MPa. Tsim los raunruab nrab- daim ntawv thov tsis tshua muaj siabnyob rau hauv onshore/subsea ib puag ncig nyob rau hauv uas tsis yog -cryogenic tej yam kev mob.
Max Siab: Tsawg dua lossis sib npaug li 7.5 MPa (siv X42 / X52 rau siab dua).
Temp Range: -46℃txog 427℃(yuav tsum tau L245N hauv qab -46 degree).
Corrosion: Kev tiv thaiv hauv paus yuav tsum tau txheej (cov yeeb nkab liab qab tsis H₂S-resistant).
API 5LQib B yeeb nkab Chemical Structure
| PSL1 API 5L Qib B Pipe Tshuaj Chemical Composition | PSL2 | |||||||
|---|---|---|---|---|---|---|---|---|
|
Qib |
C (Max.) |
Mn (Max.) |
P (Max.) |
S (Max.) |
C (Max.) |
Mn (Max.) |
P (Max.) |
S (Max.) |
|
A |
0.22 |
0.90 |
0.03 |
0.03 |
0.22 |
1.20 |
0.025 |
0.015 |
|
B |
0.26 |
1.20 |
0.03 |
0.03 |
0.22 |
1.30 |
0.025 |
0.015 |
Mechanical Properties Chart ntawm API 5L Qib b PSL1 yeeb nkab
|
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% |
Cov khoom sib npaug ntawm API 5L Gr B yeeb nkab
|
Txuj |
SEAMLESS |
WELDED |
Lwm yam qauv |
|---|---|---|---|
|
API 5L Gr B PSL1 sib npaug |
EN 10216-1 P265 |
TS EN 10217-1 P265 |
BS 3601 430 |
| API 5L Qib B PSL2 sib npaug |
EN 10216-1 P265 |
TS EN 10217-1 P265 |
BS 3601 430 |
Tolerances rau phab ntsa thickness
ayog tias daim ntawv xaj yuav qhia txog qhov kev zam txim rauphab ntsa thicknessme dua li qhov tsim nyog tau muab rau hauv cov lus no, ntxiv rau kev kam rau siab rau phab ntsa tuab yuav tsum tau nce ntxiv los ntawm tus nqi txaus los tswj cov kev kam rau siab.
brau cov yeeb nkab nrog D Ntau dua lossis sib npaug ntawm 355,6 hli (14.000 hauv) thiab t Ntau dua lossis sib npaug rau 25,0 mm (0.984 hauv) phab ntsa- thickness kam rau ua hauv zos tuaj yeem tshaj qhov ntxiv kam rau ua rau phab ntsa thickness los ntawm ib qho ntxiv 0,05 t, muab qhov ntxiv kam rau ua rau huab hwm coj.14 (see)
cQhov ntxiv kam rau ua rau phab ntsa thickness tsis siv rau qhov chaw weld.
dSaib 9.13.2 rau kev txwv ntxiv.
API 5L Qib B Roughness
| Roughness | 0.0018 x 25.4=0.04572 mm |
