API LINE PIPE
API (American Petroleum Institute) line pipe is a type of steel pipe that is used in the transportation of oil and natural gas. API line pipes are manufactured to meet the API 5L specification, which specifies the requirements for the manufacture of seamless and welded steel line pipes.
SPECIFICATIONS
STANDARDS: API 5L
LENGTH: 6.0 meter standard to 12.20 meter ±0.03 meter or supplied as per customer requirement.
THICKNESS:
For size ≤ 2 7/8“
(+20.0%, -12.5%) Grade B or lower
(+15.0%, -12.5%) Grade X42 and Higher
For size > 2 7/8″ and < 20″
(+15.0%, -12.5%) For all Grades
OUTER DIAMETER
For size < 2 3/8”
+0.016in. , -0.031 in. (+0.41 mm – 0.79mm)
For size ≥ 2 3/8” and < 20
±0.75%
(Pipe Ends tolerance shall be as per API 5L)
WEIGHT
Car Load for Grade A-25 -2.5%
Other than Grade A-25 -1.5%
STRAIGHTNESS
0.2% of any length measured along the center line or as per customer requirement.
RAW MATERIAL
As per API 5L
HYDRO TESTING
All pipes will be supplied hydro tested in accordance with API 5L or customer request.
SEAM ANNEALING
In line seam annealing of all pipes in accordance with API 5L.
IDENTIFICATION
White Marking as per API specs on each pipe is stenciled.
