9 5/8" L80 Casing Pipe /API 5CT Well Casing / N80 L80 J55 Casing Pipe
Specifications
Standard:API SPEC 5CT Standard.Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size: 4 1/2"~20" for Seamless Casing
Standard:API SPEC 5CT Standard.
Steel grade: J55, K55, N80, L80, C90, T95, P110, Q125
Size: 4 1/2"~20" for Seamless Casing
Length: R1/ R2/ R3
Thread:STC/ BTC/ LTC/ VAM TOP
Dimensional tolerances:
|
Types of steel tubes |
Outer diameter |
Wall thickness |
|
Cold-rolled tubes |
Tube sizes(mm) |
Tolerances(mm) |
Tolerances(mm) |
<114.3 |
±0.79 |
-12.5% |
|
≥114.3 |
-0.5%, +1% |
||
Mechanical properties:
Standard |
Models of steel tubes |
Tensile strength (MPa) |
Yield strength (MPa) |
Elongation (%) |
Hardness |
API SPEC 5CT |
J55 |
≥517 |
379~552 |
check the table |
≤241HB |
K55 |
≥517 |
≥655 |
|||
N80 |
≥689 |
552~758 |
|||
L80(13Cr) |
≥655 |
552~655 |
|||
P110 |
≥862 |
758~965 |
Chemical Composition:
API CASING LIST |
|
Size in |
Linear Mass |
Outside Diameter |
Wall Thickness |
Type of end-finish |
|||||||||
Grade | |||||||||||||
ln. |
mm |
ln. |
mm |
H-40 |
J-55 |
M-65 |
L-80 |
N-80 Type1,Q |
C-90 |
P-110 |
Q-125 |
||
4 1/2” |
9.5 |
4.500 |
114.30 |
0.205 |
5.21 |
PS |
PS |
PS |
-- |
-- |
-- |
-- |
-- |
10.50 |
4.500 |
114.30 |
0.224 |
5.69 |
— |
PSB |
PSB |
-- |
-- |
-- |
-- |
-- |
|
11.60 |
4.500 |
114.30 |
0.250 |
6.35 |
-- |
PSLB |
PLB |
PLB |
PLB |
PLB |
PLB |
-- |
|
13.50 |
4.500 |
114.30 |
0.290 |
7.37 |
-- |
-- |
PLB |
PLB |
PLB |
PLB |
PLB |
-- |
|
15.10 |
4.500 |
114.30 |
0.337 |
8.56 |
-- |
-- |
-- |
-- |
-- |
-- |
PLB |
PLB |
|
|
|||||||||||||
18 5/8” |
87.50 |
18.625 |
473.08 |
0.435 |
11.05 |
PS |
PSB |
PSB |
- |
- |
- |
- |
- |
20” |
94.00 |
20.000 |
508.00 |
0.438 |
11.13 |
PSL |
PSLB |
PSLB |
- |
- |
- |
- |
- |
106.50 |
20.000 |
508.00 |
0.500 |
12.70 |
- |
PSLB |
PSLB |
- |
- |
- |
- |
- |
|
133.00 |
20.000 |
508.00 |
0.635 |
16.13 |
- |
PSLB |
- |
- |
- |
- |
- |
- |
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