We have the ability to detect the whole process. We can fully guarantee the high quality of the products.
It is well known that oil casing is the important lifeline for maintaining oil wells’ operation. But geographical environment is totally different in different areas and the connection of underground force is very complex. A variety of forces acting on the pipeline together, for example: tension, pressure, bending and twisting stress, all of which require oil casing should reach a higher level of quality. Oil casing’s damage for some reason will cause the oil wells’ production decline; some time seriously it will make well abandonment. So our company produces L80 steel grade oil casing strictly according to the API 5 CT standards.
Dalipal Company is one of China's most famous enterprises professionally producing pipeline and oil casing.We can supply API 5CT series of pipeline and oil casing with all kinds of specifications and materials.We have first-class production equipment and technology.
Product Specification
|
Material
|
L80-1、L80-9Gr、L80-13Gr
|
|
External thickness
|
“4 1/2- 20”inch, (114.30- 508.00 mm)
|
|
Wall thickness
|
5.21-16.13 mm
|
|
Thread form
|
buttress casing, long casing, short casing
|
|
Function
|
used for protecting pipeline
|
|
Steel grade
|
Type
|
C
|
Mn
|
Mo
|
Gr
|
Ni
|
Cu
|
P
|
S
|
Si
|
|
min
|
max
|
min
|
max
|
min
|
max
|
min
|
max
|
max
|
max
|
max
|
max
|
max
|
|
L-80
|
1
|
|
0.43
|
|
1.90
|
|
|
|
|
0.25
|
0.35
|
0.030
|
0.030
|
0.45
|
|
L-80
|
9Gr
|
|
0.15
|
0.30
|
0.60
|
0.90
|
1.10
|
8.00
|
10.0
|
0.50
|
0.25
|
0.020
|
0.010
|
1.00
|
|
L-80
|
13Gr
|
0.15
|
0.22
|
0.25
|
1.00
|
|
|
12.0
|
14.0
|
0.50
|
0.25
|
0.020
|
0.010
|
1.00
|
