Casing: Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or well bore.It is inserted into a well bore and cemented in place to protect both subsurface formations and the well bore from collapsing and to allow drilling fluid to circulate and extraction to take place. Steel Casing Pipes have smooth wall & minimum yield strength of 35,000 psi.
Tubing: Tubing is pipe used for the transportation of crude oil and natural gas from an oil or gas layer to the surface after drilling is complete. It is made to withstand the pressure generated from the extraction process. Tubing is manufactured in the same way as casing, except that an additional process known as "upsetting" is applied to thicken the pipes.
API 5L pipeline is widely utilized in transporting petroleum, gas, water as well as in natural gas industry. API 5L refers to the American Petroleum Institute Prepared and Published all over the world.
Petroleum, crude oil, gas, water or natural gas through API 5L pipeline is transported from the underground to the oil and natural gas industry corporation for further processing production. Oil and gas pipeline includes seamless pipe and welding pipe and has three plain end, threaded end and socket end. Steel grade is mainly Grade B, X42, X46, X52, X56, X65, X70.
Seamless Pipe
Steel Grade: B, X42, X52, X60, X65, X70
Dimension: 1"/2" - 24"
Process:hot rolling, hot expanding
Welding Pipe
Steel Grade: B, X42, X52, X60, X65, X70, X80
Dimension: 2" - 30"
Process: ERW, SSAW, LSAW, HFW, JCOE.
Standard: API 5L / ISO 3183 Hot Rolled
Type: Seamless / ERW / Welded / Fabricated / CDW
Outer Diameter Size: 3/8" NB To 30" NB (Nominal Bore Size)
Wall Thickness: Schedule 20 To Schedule XXS (Heavier On Request) Up to 250 mm Thickness
Length: 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size.
Pipe Ends: Plain Ends / Beveled Ends / Coupling
Surface Coating: Epoxy Coating / Colour Paint Coating / 3LPE Coating.
Grades: API 5l Grade B X42, API 5l Grade B X46, API 5l Grade B X52, API 5l Grade B X56, API 5l Grade B X60, API 5l Grade B X65, API 5l Grade B X70
Api 5l Pipe Chemical And Mechanical Properties
The yield strength of an API 5L pipe is specified with the number that follows the X in the material grade designation (in kilopounds per square inch – i.e. KSI). So, for instance, an API 5L X52 pipe has a minimum yield strength of 52 KSI.
The table shows the chemical composition of API 5L steel pipes PSL1 and PSL2 from Grade A to Grade X70, as well as their mechanical properties.
Application of API 5L Line Pipe
- Oil & Gas Industry
- Natural Gas Industry
- Petroleum Industry
- Fluid transportation
- Automobile application
- Infrastructure construction
- Fabrication industrial
- Construction project
- Chemical Industry
Chemical Analysis (%):
|
Standard |
Type of pipe |
Class |
Grade |
C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
|
max |
max |
max |
max |
max |
max |
max |
max |
||||
|
API SPEC 5L |
SMLS |
PLS1 |
L245 B L290 X42 L320 X46 L360 X52 L390 X56 L415 X60 L450 X65 L485 X70 L245N BN |
0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.28 0.24 |
0.4 |
1.20 1.30 1.40 1.40 1.40 1.40 1.40 1.40 1.20 |
0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.025 |
0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.030 0.015 |
——— |
——— |
0.04 |
|
PLS2 |
L290N X42N |
0.24 |
0.4 |
1.2 |
0.025 |
0.015 |
0.06 |
0.05 |
0.04 |
||
|
L320N X46N |
0.24 |
0.4 |
1.4 |
0.025 |
0.015 |
0.07 |
0.05 |
0.04 |
|||
|
L360N X52N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
0.04 |
|||
|
L390N X56N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
0.04 |
|||
|
L415N X60N |
0.24 |
0.45 |
1.4 |
0.025 |
0.015 |
0.1 |
0.05 |
0.04 |
|||
|
WELD |
PLS1 |
L245 B |
0.26 |
- |
1.2 |
- |
0.03 |
0.03 |
- |
- |
|
|
L290 X42 |
0.26 |
- |
1.3 |
- |
0.03 |
0.03 |
- |
- |
|||
|
L320 X46 |
0.26 |
- |
1.4 |
- |
0.03 |
0.03 |
- |
- |
|||
|
L360 X52 |
0.26 |
- |
1.4 |
- |
0.03 |
0.03 |
- |
- |
|||
|
L390 X56 |
0.26 |
- |
1.4 |
- |
0.03 |
0.03 |
- |
- |
|||
|
L415 X60 |
0.26 |
- |
1.4 |
- |
0.03 |
0.03 |
- |
- |
|||
|
L450 X65 |
0.26 |
- |
1.45 |
- |
0.03 |
0.03 |
- |
- |
|||
|
L485 X70 |
0.26 |
- |
1.65 |
- |
0.03 |
0.03 |
- |
- |
|||
|
PLS2 |
L245M BM |
0.22 |
0.45 |
1.2 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
||
|
L290M X42M |
0.22 |
0.45 |
1.3 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
|||
|
L320M X46M |
0.22 |
0.45 |
1.3 |
0.025 |
0.015 |
0.05 |
0.05 |
0.04 |
|||
|
L360M X52M |
0.22 |
0.45 |
1.4 |
0.025 |
0.015 |
- |
- |
- |
|||
|
L390M X56M |
0.22 |
0.45 |
1.4 |
0.025 |
0.015 |
- |
- |
- |
|||
|
L415M X60M |
0.12 |
0.45 |
1.6 |
0.025 |
0.015 |
- |
- |
- |
|||
|
L450M X65M |
0.12 |
0.45 |
1.6 |
0.025 |
0.015 |
- |
- |
- |
|||
|
L485M X70M |
0.12 |
0.45 |
1.7 |
0.025 |
0.015 |
- |
- |
- |
|||
|
L555M X80M |
0.12 |
0.45 |
1.85 |
0.025 |
0.015 |
- |
- |
- |
Mechanical Properities:
|
Standard |
Class |
Grade |
Yield strength not less than (MPa) |
Tensile strength (MPa) |
Elongation(%) |
Y.S/T.S |
|
|
API SPEC 5L ISO 3183 |
PLS1 |
L245B |
min |
245 |
415 |
b |
- |
|
L290X42 |
min |
290 |
415 |
b |
- |
||
|
L320X46 |
min |
320 |
435 |
b |
- |
||
|
L360X52 |
min |
360 |
460 |
b |
- |
||
|
L390X56 |
min |
390 |
490 |
b |
- |
||
|
L415X60 |
min |
415 |
520 |
b |
- |
||
|
L450X60 |
min |
450 |
535 |
b |
- |
||
|
L485X70 |
min |
485 |
570 |
b |
- |
||
|
PLS2 |
L245N BN |
min |
245 |
415 |
b |
- |
|
|
L245M BM |
max |
450 |
760 |
b |
0.93 |
||
|
L290NX42N |
min |
290 |
415 |
b |
- |
||
|
L290MX42M |
max |
495 |
760 |
b |
0.93 |
||
|
L320NX46N |
min |
320 |
435 |
b |
- |
||
|
L320MX46M |
max |
525 |
760 |
b |
0.93 |
||
|
L360NX52N |
min |
360 |
460 |
b |
- |
||
|
L360MX52M |
max |
530 |
760 |
b |
0.93 |
||
|
L390NX56N |
min |
390 |
490 |
b |
- |
||
|
L390MX56M |
max |
545 |
760 |
b |
0.93 |
||
|
L415NX60N |
min |
415 |
520 |
b |
- |
||
|
L415MX60M |
max |
565 |
760 |
b |
0.93 |
||
|
L450MX65M |
min |
450 |
535 |
b |
- |
||
|
max |
600 |
760 |
b |
0.93 |
|||
|
L485MX70M |
min |
485 |
570 |
b |
- |
||
|
max |
635 |
760 |
b |
0.93 |
|||
|
L555MX80M |
min |
555 |
625 |
b |
- |
||
|
max |
705 |
825 |
b |
0.93 |
Toughness:
|
Standard |
Grade |
Transverse minimum impact of Pipe body |
Transverse minimum impact of weld (J) |
|||||
|
(J) |
||||||||
|
D=508 |
508mm<D=762mm |
762mm<D=914mm |
914mm<D=1219mm |
1219mm<D=1422mm |
D<1422mm |
D=1422mm |
||
|
API SPEC 5L |
=L415×60 |
27(20) |
27(20) |
40(30) |
40(30) |
40(30) |
27(20) |
40(30) |
|
>L415×60 |
27(20) |
27(20) |
40(30) |
40(30) |
54(40) |
27(20) |
40(30) |
|
|
=L450×65 |
||||||||
|
>L450×65 |
27(20) |
27(20) |
40(30) |
40(30) |
54(40) |
27(20) |
40(30) |
|
|
=L485×70 |
||||||||
|
>L485×70 |
40(30) |
40(30) |
40(30) |
40(30) |
54(40) |
27(20) |
40(30) |
|
|
=L555×80 |
||||||||
Note: (1) The values in the table be suitable for the full size standard sample.
(2) The values inside bracket is the minimum single value, outside bracket is the average value.
(3) Test Temperature: 0°C.
Anti-corrosion Water Based Paint
Hot Rolling Seamless Steel Line Pipe Manufacturing / Production processes
Rolled Round Billets – Examination – Cut Off – Heating – Piercing – Elongation – Slight Tension Reducing – Straightening – Corp End Cutting Off – Visual Inspection – NDT – Hydrostatic Test – Ends Procession – Product Inspection – Painting and Marking – Packing – Warehousing
Cold Drawn (Rolled) seamless steel pipe manufacturing process
Mother pipe (Normally for hot rolled pipe) – Inspection – Annealing – Ends Treatment (Hitting and Drilling hole) – Pickling – Grinding – Phosphorization (Annoit) – Cold Drawn (Rolled) – Degreasing and Cleaning – Heat treatment (Solution treatment) – Straightening – Hydrostatic test – Painting and Marking – Warehousing
