Line pipes are used to transport oil and gas, water, mineral slurry and other fluids. Our line pipes are manufactured in accordance with API Spec 5L. Tubing and Casing, Line Pipes API SPEC 5L is a international standard specifies requirements for the manufacture of two product specification levels (PSL 1 and PSL 2) of welded steel pipes for use in pipeline transportation systems in the petroleum and natural gas industries.
What is Line Pipe
Line pipe is a type of pipe that is manufactured from high strength carbon steel. It is typically made according to metallurgical specifications that were developed by the American Petroleum Institute (API). Line pipe can be used to build pipelines that transport a variety of resources including natural gas, oil, petroleum, and water. This pipe is available in a variety of diameters ranging from 2 inches to 48 inches. Line pipe can include either seamless or welded carbon steel or stainless steel piping. Because line pipe needs to withstand high pressures, there are important tests done on line pipe to ensure it meets all of the requirements of steel chemistry, strength, toughness, and dimensional characteristics. Using line pipe that meets the set criteria will ensure safe and reliable pipeline service.
The size and diameter of line pipe that is required for a pipeline can vary based on the amount of gas or liquid that a pipe is intended to carry as well as the pressures that a line pipe must withstand. For example, in most cases a mainline, the principal pipeline that delivers natural gas, will require line pipe that is around 16 to 48 inches in diameter. Smaller pipelines that deliver gas to the mainline or take gas from a mainline can be constructed of 6 to 16 inch diameter line pipe. One can determine the necessary diameter required for a pipeline by considering the volume of gas or liquid that the line pipe will be carrying as well as the pressure at which this will be transported.
The thickness requirements for line pipe are determined by the maximum operating pressure required for a pipeline. This is based on published standards and federal regulations. Following proper safety regulations when selecting and installing line pipe, will ensure proper pipeline operation and prevent dangerous or hazardous situations.
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Drill Pipes with Welded-on Tool-Joints/Threaded End
Line Pipe with Plain End and Beveled
Boiler Tubes /Heat Exchanger Tubes
Carbon Steel Tubes for General Structural Purposes
Precision Carbon Steel Tubes
Seamless Tubing and Couplings Hydrosulfide-Carbon Dioxide- and Cold-Resistant
High Longevity Oil-Well Tubing and Interlocks of Production Strings for Corrosive Media
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Drill Pipes with Welded Tool Joints
API Spec 5CT Casing pipe
Application:
Conveying gas,water,and oil in both the oil and natural industries, Tubular goods for petroleum and natural gas industries
Production Standard, Grade, Steel No:
API 5L PSL1 L175/A25, L210/A, L245/B, L290/X42, L320/X46, L360/X52, L485/X70, PSL2 L245R/BR, L290N/X42N, L320N/X46N, L360N/X52N, L415/X60N
API 5CT PSL1, PSL2, PSL3, H40, J55, K55, N80
GB/T 9711.1 L175, L210, L245, L290, L320, L360
GB/T 9711.2 L245NB, L290NB, L360NB
GB/T 9711.3 L245NC, L290NC, L360NC
Delivery Condition:
Annealed, Normalized, Normalized and Tempered
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness), Drift Test, Surface and Dimension Test,NDE, Hydrostatic Test, MT
Inspection and Tests Performed: View more…
5L – Chemical composition, Mechanical properties, Hydrostatic test, Dimensional testing, Visual inspection, Nondestructive inspection
5CT – Chemical composition, Tensile test, Flattening test, Hardness test, Impact test, Grain size determination, Harden ability, Sulfide stress-cracking test, Hydrostatic test, Dimensional testing, Visual inspection, Non-destructive examination(NDE)
Surface Treatment:
5L – Uncoated(bare), Temporary coating, Special coating, Oil-dip, Shot Blasting, Varnish
Size: We supply various line pipes including seamless line pipes
(OD from 2-3/8″ to 24″, steel grade A, B, X42 – X80)
Standard : API SPEC 5L
Application : It is used for conveying gas,water,and petroleum of both the oil and natural gas industries.
Standard |
Product Specification Level |
Steel grade |
Chemical composition, % |
||||||||
C |
Mn |
P |
S |
Si |
V |
Nb |
Ti |
CEpcm |
|||
API 5L |
PSL 1 |
L210 or A |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
L245 or B |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
||
L290 or x42 |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
||
L320 or X46 |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
||
L360 or X52 |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
||
L390 or X56 |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
||
L415 or X60 |
≤ |
≤ |
≤ |
≤ |
– |
– |
– |
– |
≤ |
||
PSL 2 |
L245Ror BR |
≤ |
≤ |
≤ |
≤ |
≤ |
c |
c |
≤ |
≤ |
|
L290R or X42R |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
L245N or BN |
≤ |
≤ |
≤ |
≤ |
≤ |
c |
c |
≤ |
≤ |
||
L290N or X42N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
L320N or X46N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
L360N or X52N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
L390N or X56N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
||
L415N or X60N |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
≤ |
协商 |
||
Note: c: The sum of the columbium [niobium], and vanadium contents shall not exceed 0.06% except that, by agreement between the purchaser and |
Standard |
Product Specification Level |
Steel grade |
Yield Strength (min), Mpa |
Tensile Strength(min), Mpa |
API 5L |
PSL 1 |
L210 or A |
210 |
335 |
L245 or B |
245 |
415 |
||
L290 or x42 |
290 |
415 |
||
L320 or X46 |
320 |
435 |
||
L360 or X52 |
360 |
460 |
||
L390 or X56 |
390 |
490 |
||
L415 or X60 |
415 |
520 |
||
PSL 2 |
L245Ror BR |
245~450 |
415~760 |
|
L290R or X42R |
290~495 |
415~760 |
||
L245N or BN |
245~450 |
415~760 |
||
L290N or X42N |
290~495 |
415~760 |
||
L320N or X46N |
320~525 |
435~760 |
||
L360N or X52N |
360~530 |
460~760 |
||
L390N or X56N |
390~545 |
490~760 |
||
L415N or X60N |
415~565 |
520~760 |
Nominal Diameter Range |
Outside diameters Rang(mm) |
Coating Type |
Coating Layer |
Coating thickness |
DN100~600 |
114.3~609.6 |
Three layers polyethylene |
|
2.0~4.5mm |
Inside layer: epoxy(Green) |
||||
Mid Layer:adhesive(White) |
||||
Outside layer:polyethylene (Black) |
||||
Two layers polyethylene |
2.0~4.5mm |
|||
Inside layer: adhesive |
||||
|
||||
Outside layer:polythene |
||||
DN80~600 |
88.9~609.6 |
FBE |
200~400um |
|
Epoxy |
||||
2FBE |
400~800um |
|||
Inside layer: epoxy(Green) |
||||
|
||||
Outside layer:intensity epoxy(sage green) |
||||
DN100~600 |
114.3~609.6 |
3PP |
|
2.5~3mm |
Inside layer: epoxy(Green) |
||||
|
||||
Mid Layer:adhesive(White) |
||||
Outside layer:polypropylene(White) |
Keywords:
Casing, Tubing, Drill pipe, Line pipe, Boiler tubes, Carbon Steel tubes, Precision tubes, etc.