API 5L-B (L245) pipeline steel conforms to the API SPEC 5L standard and is a grade of pipeline steel, equivalent to the L245 designation. "L" represents the first letter of "Line," and "245" indicates the minimum specified yield strength of the steel, expressed in megapascals (MPa). Furthermore, L245 steel plates also comply with the GB/T21237 standard.
api 5l grade b pipe specifications
| Size Range | 1/2 to 36 inch NB |
| Schedule Thickness Range | SCH 40, 80, 160, XS, XXS, All Schedules |
| Applications | Oil Refineries, Power Generation, Petrochemicals, Sugar, Pressure Vessels, Boiler Equipments, General Engineering Purposes |
| Pipe Type | Seamless, ERW, Welded, Fabricated, CDW |
| Pipe & Tube Form | Round, Square, Rectangular, Coiled, "U" Shape, Pan Cake Coils, Hydraulic Tubes |
| Length: | Single, Double Random & Length, Custom Size – 12 M lengths |
| End: | Beveled End, Plain End, Treaded |
| End Protection: | Plastic Caps |
| End Connections for Line Pipes | Plain, Bevel, Screwed, Threaded |
| Outside Coating | Black Painting, Anti-Corrosion Oil, Galvanised Finish |
API 5L Grade b pipe Chemical Structure
| PSL1 API 5L Grade B Pipe Chemical Composition | PSL2 | |||||||
|---|---|---|---|---|---|---|---|---|
|
Grade |
C (Max.) |
Mn (Max.) |
P (Max.) |
S (Max.) |
C (Max.) |
Mn (Max.) |
P (Max.) |
S (Max.) |
|
B |
0.26 |
1.20 |
0.03 |
0.03 |
0.22 |
1.30 |
0.025 |
0.015 |
API 5L Gr B Yield Strength Chart
|
Pipe Grade |
Tensile Properties - Grade B Pipe Body of SMLS and Welded Pipes PSL 1 |
Seam of Welded Pipe |
||
|---|---|---|---|---|
|
Yield Strength a |
Tensile Strength a |
Elongation |
Tensile Strength b |
|
|
Grade B |
35,500 |
60,200 |
c |
60,200 |
What is API 5L Grade B equivalent to?
API 5L Grade B pipe is a common pipe for oil and gas pipeline transmission. This is also known as L245 pipe (see ISO 3183). Named for its minimum yield strength of 245 MPa (35,500 psi). Equivalent material ASTM A106 B or ASTM A53 B.
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