API 5L Grade B pipe is a general grade pipe for oil and gas pipeline transmission. Also called L245 pipe, referring to ISO 3183, named for a minimum yield strength of 245 MPa (355,000 Psi).
API 5L Grade B carbon steel seamless pipe, API 5L Grade B line pipe and Grade B straight seam welded pipe are used in the petroleum, petrochemical and natural gas industries.
API 5L Gr B pipes can be classified based on criteria such as pipe execution, specification, surface finish, and pipe end type. API 5L Class B seamless pipe can be built up to 24 inches, LSAW or straight seam submerged arc welded pipe can be built up to 24 inches and above, and electric resistance welded pipe or ERW can be built up to 20 inches) specification grade end use pipe.
API 5L Gr B Material pipe Properties
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Tolerance on dimension |
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|---|---|---|---|---|---|
|
OD Tolerance |
WT Tolerance |
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|
A, B |
X42 ~ X70 |
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|
D<60.3mm |
+0.41/-0.40mm |
D<73mm |
+20%/-12.5% |
D<73mm |
+15%/-12.5% |
|
D>=60.3mm |
+0.75/-0.40mm |
D>=73mm |
+15%/-12.5% |
D>=73mm |
+15%/-12.5% |
Tensile and API 5L Grade B Pipe Yield Strength – PSL1 and PSL2
|
Pipe Grade |
Tensile Properties - Grade B Pipe Body of SMLS and Welded Pipes PSL 1 |
Seam of Welded Pipe |
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|---|---|---|---|---|
|
Yield Strength a |
Tensile Strength a |
Elongation |
Tensile Strength b |
|
|
Grade B |
35,500 |
60,200 |
c |
60,200 |
API 5L gr b carbon pipe
GNEE offers API 5L Gr B Carbon Steel Pipes
There are two grades of B-grade steel pipes produced by GNEE: API PSL1 and PSL2. PSL1 is the quality standard used for Sch 40 Class B pipes. API 5L Gr B PSL2 material has more stringent mechanical and chemical properties. API 5l Class B psl2 pipes also need to undergo quality inspection and testing.
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