Global Steel Alloys stocks and supplies full range of API 5L Grade B Seamless Pipes and Welded Pipes. We are a leading supplier of API 5L line pipes in all major grades and sizes. We also supply API 5L GR. B, X42, X46, X52, X56, X60, X65, X70 Pipes with complete certifications and traceability.
API 5L Grade B WELDED CARBON STEEL PIPES are widely available and relatively affordable, making it a popular choice for very large projects such as pipelines. API 5L Grade B ERW CARBON STEEL PIPES is one of our most widely used grade of carbon steel and is readily available ex-stock for all standard thicknesses up to SCH160.
These API 5L LINE PIPES are used in a several applications such as in Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes. Meanwhile, API 5L Grade B carbon steel seamless pipes are stocked in size range of 1/2” NB through 36”, whereas API 5L Grade B carbon steel welded tubes are also available in higher sizes.
API 5L Grade B Seamless Pipes
API 5L Grade B Seamless Tubes
Seamless and Welded API 5L Line Pipes Supplier, Manufacturer - API 5L Grade B, X42, X46, X52, X56, X60, X65, X70 Pipes
API 5L Seamless Steel Pipes, API 5L Welded Pipes Specifications, Stock and Supply Range
API 5L Grade B Carbon Steel Pipes:
Size Range : 1/2” NB to 36” NB
Thickness Range: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
Applications: Oil Refineries, Petrochemicals, Power Generation (Nuclear/Thermal), Steel, Sugar, Boiler Equipments, Pressure Vessels and General Engineering Purposes
Type : Seamless / ERW / Welded / Fabricated / CDW
Form: Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
Length: Single Random, Double Random & Required Length, Custom Size – 12 Meter lengths
End: Plain End, Beveled End, Treaded
End Protection: Plastic Caps
End Connections for Line Pipes: Plain, Bevel, Screwed, Threaded
Outside Coating: Black Painting, Anti-Corrosion Oil, Galvanised Finish, Finish as per customer Requirements
Inspection, Test Reports: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports, India Boiler Regulations (IBR) Test Certificate
Packing: Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials: Sizes and Specifications other than above can be manufactured on request
API 5L Grade B Pipes, Seamless and Welded Line Pipes Sizes
| NPS | OD | Wall Thickness | |||||
| STD | Sch40 | XS | Sch80 | Sch160 | XXS | ||
| 1/8″ | 10.3 | 1.73 | 1.73 | 2.41 | 2.41 | ||
| 1/4″ | 13.7 | 2.24 | 2.24 | 3.02 | 3.02 | ||
| 3/8″ | 17.1 | 2.31 | 2.31 | 3.2 | 3.20 | ||
| 1/2″ | 21.3 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 |
| 3/4″ | 26.7 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 |
| 1″ | 33.4 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 |
| 1 1/4″ | 42.2 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.7 |
| 1 1/2″ | 48.3 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.16 |
| 2″ | 60.3 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 |
| 2 1/2″ | 73 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 |
| 3″ | 88.9 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.24 |
| 3 1/2″ | 101.6 | 5.74 | 5.74 | 8.08 | 8.08 | ||
| 4″ | 114.3 | 6.02 | 6.02 | 8.58 | 8.56 | 13.49 | 17.12 |
| 5″ | 141.3 | 6.55 | 6.55 | 9.53 | 9.53 | 15.88 | 19.05 |
| 6″ | 168.3 | 7.11 | 7.11 | 10.97 | 10.97 | 18.28 | 21.95 |
| 8″ | 219.1 | 8.18 | 8.18 | 12.7 | 12.70 | 23.01 | 22.23 |
| 10″ | 273 | 9.27 | 9.27 | 12.7 | 15.09 | 28.58 | 25.4 |
| 12″ | 323.8 | 9.53 | 10.31 | 12.7 | 17.48 | 33.32 | 25.4 |
| 14″ | 355.6 | 9.53 | 11.13 | 12.7 | 19.05 | 35.71 | |
| 16″ | 406.4 | 9.53 | 12.7 | 12.7 | 21.44 | 40.4 | |
| 20″ | 508 | 9.53 | 15.09 | 12.7 | 26.18 | 50.01 | |
| 24″ | 610 | 9.53 | 17.48 | 12.7 | 30.96 | 59.54 | |
API 5L Line Pipes Tolerance Specifications
| Tolerance on dimension | |||||
| OD Tolerance | WT Tolerance | ||||
| A, B | X42 ~ X70 | ||||
| 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% |
API 5L Seamless Steel Pipes, API 5L Welded Pipes Chemical Composition
| PSL1 | PSL2 | |||||||
| Grade | C (Max.) | Mn(Max.) | P(Max.) | S(Max.) | C (Max.) | Mn(Max.) | P(Max.) | S(Max.) |
| A | 0.22 | 0.90 | 0.03 | 0.03 | 0.22 | 1.20 | 0.025 | 0.015 |
| B | 0.26 | 1.20 | 0.03 | 0.03 | 0.22 | 1.30 | 0.025 | 0.015 |
| X42 | 0.26 | 1.30 | 0.03 | 0.03 | 0.22 | 1.40 | 0.025 | 0.015 |
| X46 | 0.26 | 1.40 | 0.03 | 0.03 | 0.22 | 1.40 | 0.025 | 0.015 |
| X52 | 0.26 | 1.40 | 0.03 | 0.03 | 0.22 | 1.40 | 0.025 | 0.015 |
| X56 | 0.26 | 1.40 | 0.03 | 0.03 | 0.22 | 1.40 | 0.025 | 0.015 |
| X60 | 0.26 | 1.40 | 0.03 | 0.03 | 0.22 | 1.45 | 0.025 | 0.015 |
| X65 | 0.26 | 1.45 | 0.03 | 0.03 | 0.22 | 1.65 | 0.025 | 0.015 |
| X70 | 0.26 | 1.65 | 0.03 | 0.03 | 0.22 | 1.85 | 0.025 | 0.015 |
API 5L Seamless Steel Pipes, API 5L Welded Pipe Mechanical Properties
| Mechanical Properties PSL 1 | |||||
| Grade | Yield Strength(Min.) | Tensile Strength(Min.) | Elongation | ||
| Ksi | MPa | Ksi | MPa | E=1944 A 0.2 /U 0.9 | |
| B | 35 | 241 | 60 | 414 | |
| X42 | 42 | 290 | 60 | 414 | |
| X46 | 46 | 317 | 63 | 434 | |
| X52 | 52 | 359 | 66 | 455 | |
| X56 | 56 | 386 | 60 | 414 | |
| X60 | 60 | 414 | 63 | 434 | |
| X65 | 65 | 448 | 66 | 455 | |
| Mechanical Properties PSL 2 | |||||||||
| Grade | Yield Strength | Tensile Strength | Elongation | ||||||
| Min | Max | Min | Max | E=1944 A 0.2 / U 0.9 | |||||
| Ksi | MPa | Ksi | MPa | Ksi | MPa | Ksi | MPa | ||
| B | 35 | 241 | 65 | 448 | 60 | 414 | 110 | 758 | |
| X42 | 42 | 290 | 72 | 496 | 60 | 414 | 110 | 758 | |
| X46 | 46 | 317 | 76 | 524 | 63 | 434 | 110 | 758 | |
| X52 | 52 | 359 | 77 | 531 | 66 | 455 | 110 | 758 | |
| X56 | 56 | 386 | 79 | 544 | 71 | 490 | 110 | 758 | |
| X60 | 60 | 414 | 82 | 565 | 75 | 517 | 110 | 758 | |
| X65 | 65 | 448 | 87 | 600 | 77 | 531 | 110 | 758 | |
Origin of material (Make):

V & M France

Mannesmann Brazil

Dalmine Italy

Tubacex Spain

Nippon Steel & Sumitomo Metal, Japan

Sumitomo Japan

ArcelorMittal Romania

JFE Steel Corporation Japan

Ratnamani India

Rajendra Industrial Corporation India

Outokumpu Finland

Welspun India
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