Standard: API 5L (PSL1 / PSL2) | Grade: B / L245
Process: ERW (Electric Resistance Welded)
Size Range: OD 21.3mm – 660mm | WT 1.0mm – 20mm | Length 3m – 12m
As a leading api 5l grade b erw pipe supplier in China, Yuan Steel offers high-quality api 5l grade b pipe for oil, gas, and water transmission projects worldwide. Our api 5l gr b erw pipes combine cost-effectiveness with reliable performance, making them the preferred choice for medium to low-pressure applications.
Api 5l grade b (also known as L245) is the most commonly specified grade in the API 5L standard, offering excellent weldability and dimensional consistency. Our api 5l grb welded pipe is manufactured using high-frequency electric resistance welding (ERW), creating a strong, reliable seam without filler metals.
Api 5l grade b erw pipe is a carbon steel welded pipe manufactured by forming steel coils into a cylindrical shape and welding the seam using high-frequency electric resistance. This process delivers:
Cost-effective solution – 20-30% lower cost than seamless alternatives
Uniform wall thickness – Precise dimensional control from steel strip
Smooth surface finish – Both ID and OD suitable for coating/lining
High production efficiency – Ideal for large-volume projects
Our api 5l grade b pipe meets strict chemical and mechanical requirements, ensuring consistent performance in gathering lines, distribution networks, and structural applications.
API 5L Grade B ERW Line Pipe Chemical Composition & Mechanical Property
| API 5L Pipe Grade | Chemical Composition | Mechanical Properties | ||||
| C (Max) | Mn (Max) | P (Max) | S (Max) | Yield Strength | Tensile Strength | |
| MPa (psi) | MPa (psi) | |||||
| min | min | |||||
| API 5L Grade B Seamless Pipe | ||||||
| L245 or B | 0.28 | 1.2 | 0.03 | 0.03 | 245 (35.500) | 415 (60.200) |
| L290 or X42 | 0.28 | 1.3 | 0.03 | 0.03 | 290 (42.100) | 415 (60.200) |
| L320 or X46 | 0.28 | 1.4 | 0.03 | 0.03 | 320 (46.400) | 435 (63.100) |
| L360 or X52 | 0.28 | 1.4 | 0.03 | 0.03 | 360 (52.200) | 460 (66.700) |
| L390 or X56 | 0.28 | 1.4 | 0.03 | 0.03 | 390 (56.600) | 490 (71.100) |
| L415 or X60 | 0.28 | 1.40 e | 0.03 | 0.03 | 415 (60.200) | 520 (75.400) |
| L450 or X65 | 0.28 | 1.40 e | 0.03 | 0.03 | 450 (65.300) | 535 (77.600) |
| L485 or X70 | 0.28 | 1.40 e | 0.03 | 0.03 | 485 (70.300) | 570 (82.700) |
| API 5L Grade B Welded Pipe | ||||||
| L245 or B | 0.26 | 1.2 | 0.03 | 0.03 | 245 (35.500) | 415 (60.200) |
| L290 or X42 | 0.26 | 1.3 | 0.03 | 0.03 | 290 (42.100) | 415 (60.200) |
| L320 or X46 | 0.26 | 1.4 | 0.03 | 0.03 | 320 (46.400) | 435 (63.100) |
| L360 or X52 | 0.26 | 1.4 | 0.03 | 0.03 | 360 (52.200) | 460 (66.700) |
| L390 or X56 | 0.26 | 1.4 | 0.03 | 0.03 | 390 (56.600) | 490 (71.100) |
| L415 or X60 | 0.26 | 1.4 | 0.03 | 0.03 | 415 (60.200) | 520 (75.400) |
| L450 or X65 | 0.26 | 1.45 | 0.03 | 0.03 | 450 (65.300) | 535 (77.600) |
| L485 or X70 | 0.26 | 1.65 | 0.03 | 0.03 | 485 (70.300) | 570 (82.700) |
Ends design:
1) Bevel the welding ends to an angle of 30°, +5°, -0°, with a root face of 1/16", +/- 1/32". The bevel shall form a V groove with an included angle of 60°+10/-0. The root opening shall be 1/16", +/- 1/32" according to ANSI B16.25.
2) Plain or straight ends.
3) Threaded ends with coupling or without coupling according to API Spec. 5B.
Package:
Black painted or bare surface, hexagonal bundled with steel strips if the pipe diameter is equal or below 323.9mm, loose packing if the pipe diameter larger than 323.9mm.
Shipment:
Land transportation by truck or train, sea transportation by container ship or bulk ship.
API 5L Grade B, X42, X52, X60 Steel Pipes Application:
Crude oil Pipelines, Natural Gas Pipelines, Jet Fuel Pipelines, Water and Sewage Pipelines, Mineral Slurry Pipelines, Submarine Pipelines, Onshore and Offshore Pipelines, Line Pipe Pile.
Product Details of API 5L Grade B ERW line pipe
Pipe End: square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled,
Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)
Packing: Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.
Test: Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Hardness Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, NDT TEST (ET TEST, RT TEST, UT TEST)
For ERW Line Pipe For ERW Casing
For ERW Structure Tube
For High pressure and high temperature
Size
Out Diameter: 21.3-660mm
Wall Thickness: 1.0-20mm
Length: 3-12m, or according to customer's requirement
End: Plain End, Beveled End, Treaded
Standard
ASTM 5L, ASTM A53, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672, EN 10217
Steel Grade:
API 5L: PSL1/PSL2 Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70
ASTM A53: GR.A, GR.B, ASTM A500 JIS G3466
EN: S275, S275JR, S355JRH, S355J2H, EN10219-1, EN10217-1
GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360-L555
The API 5L Grade B ERW line pipe manufacturing process is more straightforward and automated than seamless pipe production, resulting in lower costs.
api 5l gr b erw pipes are made in a continuous process that allows for fast production speeds, ideal for large projects and high-volume needs.
The thickness of the steel strip used determines the wall thickness, leading to a more uniform and precise result compared to some other pipe types.
API 5L Grade B ERW pipes have a smooth interior and exterior, which can be beneficial for applications where surface quality is important.
ERW line pipes can have thinner walls than seamless pipes while maintaining good strength, which can lead to lighter and easier-to-handle products.
The continuous manufacturing process results in tight tolerances, ensuring dimensional accuracy.
ERW lines can be adjusted to produce a wide range of diameters and wall thicknesses, providing flexibility for different applications.
API 5L Grade B ERW line pipes are essential for general construction, oil and gas, and water supply systems, as well as in the automotive industry.
1.Specialized in ERW
We focus on api 5l grade b erw pipe, ensuring consistent quality and competitive pricing.
2.Complete Grade Range
From api 5l grade b to X70, we supply the full API 5L spectrum.
3. Quality Commitment
Each api 5l grb pipe is tested and certified before shipment.
4. Global Export Experience Successfully shipped to North America, South America, Middle East, Southeast Asia, and Africa.
5.Technical Support
Our team provides api 5l pipe material selection guidance, welding recommendations, and application support.
| Product: | API 5L Grade B ERW (Electric Resistance Welded) Steel Pipe, ERW Carbon Steel Pipe |
| Application: | Used for Oil/Gas/Water transmission, Machinery Manufacturing |
| Size: | OD: 21.3-660mm |
| WT: 1.0-20mm | |
| LENGTH: 3-12m, or according to customer's requirement | |
| Pipe Standard: | API 5L PSL1/PSL2 Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70 |
| ASTM A53: GR.A, GR.B, ASTM A500 JIS G3466 | |
| ASTM A252 ASTM A178 | |
| AN/NZS 1163 AN/NZS 1074 | |
| EN10219-1 EN10217-1, S275, S275JR, S355JRH, S355J2H |
Hainan Yuan Steel Pipe Supply Chain Co.,Ltd is one of the leading api 5l grb ERW Line Pipe distributors.
If you want to buy or import best high-quality api 5l grb Line Pipe, please kindly feel free to contact us.
