API 5L Grade B pipe is a common grade pipe for oil and gas pipeline transmissions. It also called L245 Pipe refer ISO 3183, named by minimum yield strength 245 Mpa (35,500 Psi). Equivalent material ASTM A106 B or ASTM A53 B, which have similar value on chemical composition, mechanical properties, and applications.
API 5L B covers PSL1, PSL2, Sour Services, for onshore and offshore pipelines. Manufacturing types including seamless and welded.
PSL1 is generally use which equivalent to ASTM A106 B and A53 B.
PSL2 is a higher specificaiton level pipe, has more strict value on chemical and mechanical strenth. More over PSL2 requires more test methods like None Distructive Test, CVN Impact Test, DWT etc.
API 5L B PSL2 expressed with API 5L BN/Q/R/M
Sour Services: For sour pipelines like H2S environment, pipe material have typical resrictions on chemicals element of Carbon, P and S. Referring standard NACE MR0175.
API 5L B Pipe for Sour Service expressed in API 5L BNS/QS/MS
Suffix Letter
Suffix letter specified the pipe delivery condition:
R: As rolled
N: Normalizing rolled, Normalized formed, Normalized
Q: Tempered and quenched
M: Thermomechanical rolled or thermomechanical formed
S: Sour Services, comes with PSL2 pipe with for NS, QS, MS, eg API 5L Grade B NS, API 5L B QS
Our Supply Range
Octal offers API 5L B seamless carbon steel line pipe, product specification level in PSL 1 and PSL 2, and for sour services.
Attached below with our supply range for API 5L Grade B Pipe:
Grade: API 5L Grade BN/Q/M/NS/QS/MS
Manufacturing type: Seamless and welded ERW, LSAW, SSAW/HSAW
Outer Diameters for Seamless: 1/2" – 24"
OD for ERW: up to 24"
OD for LSAW: 16" to 48"
OD for SSAW/HSAW: up to 100"
Range of Thickness: Sch 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 120, SCH XXS, SCH 160
Range of Length: SRL, DRL, 20FT, 40FT
Product Specification Level: PSL1, PSL2, Sour Services
Ends: Plain, Beveled, Threaded
Coating Available: FBE, 3PE/3LPE, Black Painting, Varnished, Anti-rust oil, Galvanized, CRA, CWC
View here for API 5L pipe specifications
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