Hebei Huayang Steel Pipe Co., Ltd is one of the most experienced manufacturers and suppliers of erw api 5l grade b carbon steel pipe in China. Welcome to buy discount erw api 5l grade b carbon steel pipe made in China here from our factory. Quality products and low price are available.
Product introduction
Product Description
ERW API 5L Grade B Carbon Steel Pipe is a high-frequency electric resistance welded pipe manufactured in strict accordance with the American Petroleum Institute standard API 5L (PSL1/PSL2). Also known as L245 carbon steel pipe, it features a minimum yield strength of 245MPa, equivalent to ASTM A53 Grade B, and is designed for medium-pressure transmission of oil, natural gas, water and industrial fluids. Adopting advanced ERW high-frequency welding technology, the pipe body has uniform wall thickness, smooth inner and outer surfaces, excellent weld quality and airtightness, making it the preferred pipe for onshore and offshore oil and gas pipeline projects.
All products undergo 100% online weld inspection, hydrostatic pressure testing and dimensional calibration, with stable mechanical properties and corrosion resistance. ERW API 5L Grade B steel pipe covers a wide size range, supporting customized specifications, and is widely used in petrochemical, municipal water supply, natural gas transmission and other fields, with significant cost-effectiveness compared to seamless pipes.
Basic Product Specifications
|
Parameter |
Details |
|
Product Name |
ERW API 5L Grade B Carbon Steel Pipe |
|
Executive Standard |
API 5L (PSL1/PSL2), equivalent to ISO 3183 L245, ASTM A53 Grade B |
|
Outer Diameter (OD) |
21.3mm–660mm (1/4"–24"), conventional sizes: 60.3mm, 114.3mm, 168.3mm, 219.1mm, 273.1mm |
|
Wall Thickness (WT) |
1.65mm–20mm, SCH 10/SCH 40/SCH 80/SCH 160, STD/XS/XXS |
|
Steel Grade |
Grade B (L245), PSL1/PSL2 dual specifications available |
|
Production Process |
High-frequency Electric Resistance Welding (ERW), straight seam welded |
|
Standard Length |
6m (20ft), 12m (40ft); customizable fixed length (3–12m) |
|
Working Medium |
Crude oil, natural gas, refined oil, tap water, industrial circulating water, non-corrosive fluid |
|
Working Pressure |
Medium-pressure pipeline systems (≤10MPa), suitable for PSL1 conventional and PSL2 enhanced requirements |
|
Pipe End Treatment |
Plain ends / beveled ends, optional plastic protective end caps |
|
Surface Treatment |
Black steel finish, oiled anti-rust, 3PE/FBE anti-corrosion, hot dip galvanized optional |
|
Core Features |
API 5L certified, high weld strength, good toughness, wide size range, cost-effective, oil/gas/water transmission dedicated |
Core Product Advantages
Strict API 5L Standard Compliance
Produced in full compliance with API 5L PSL1/PSL2 standards, with chemical composition and mechanical properties meeting international oil and gas pipeline engineering requirements. Grade B (L245) has a minimum yield strength of 245MPa and tensile strength of 415–655MPa, supporting third-party inspection and international project acceptance.
Excellent Weld Quality & Airtightness
Adopting high-frequency ERW integrated forming technology, the weld seam is fine and uniform without cracks, slag inclusion or leakage risks. 100% full-length hydrostatic pressure test and weld non-destructive testing ensure no leakage during long-distance oil and gas transmission, adapting to harsh burial and exposed environments.
Good Mechanical Properties & Durability
Made of high-quality carbon steel, the pipe body has uniform structure, good toughness and impact resistance. It can resist external pressure and slight impact, with stable performance in low-temperature environments, suitable for onshore and offshore pipeline projects, and long service life.
Wide Size Range & Strong Compatibility
Covers common sizes from 1/4" to 24", matching international standard elbows, flanges, valves and other pipe fittings. Supports SCH series wall thickness customization, with strong adaptability to different pressure requirements, convenient on-site construction and high efficiency.
High Cost Performance & Wide Applicability
Compared with seamless steel pipes, ERW Grade B pipes have lower procurement costs while meeting medium-pressure transmission requirements. With stable quality and low maintenance rate, they are the preferred bulk pipe for oil and gas, petrochemical and municipal water supply projects.
Chemical Composition (PSL1)
|
Element |
C |
Mn |
P |
S |
Cu |
Ni |
Cr |
Mo |
|
Content (Max) |
0.26% |
1.20% |
0.030% |
0.030% |
0.50% |
0.50% |
0.50% |
0.15% |
|
Note: PSL2 has stricter component limits; carbon equivalent (Ceq) ≤0.43% ensures excellent weldability. |
Mechanical Properties
|
Property |
PSL1 |
PSL2 |
|
Minimum Yield Strength |
≥245MPa (35,500psi) |
≥290MPa (42,100psi) |
|
Tensile Strength |
415–655MPa |
415–655MPa |
|
Minimum Elongation |
≥20% |
≥20% |
|
Weld Tensile Strength |
≥415MPa |
≥415MPa |
|
Hydrostatic Test |
100% full-length tested |
100% full-length tested |
Dimensional Tolerance Standard
|
Inspection Item |
Standard Tolerance |
|
Outer Diameter (OD) |
±0.75% (OD ≤168.3mm); ±1.0% (OD >168.3mm) |
|
Wall Thickness (WT) |
+15% / −12.5% |
|
Straightness |
≤1.5mm per meter |
|
Out-of-Roundness |
≤1.0% of OD |
|
Pipe Length |
+100mm / −0mm |
Manufacturing Process
Raw Material Inspection: Select qualified carbon steel strips, strictly check chemical composition and mechanical properties to meet API 5L Grade B standards.
Precision Forming: Continuous rolling and forming of steel strips to ensure uniform pipe roundness and wall thickness.
High-frequency Welding: Adopt high-frequency resistance welding for seamless weld forming, stable and firm weld seam.
Weld Finishing: Remove internal and external welding burrs to ensure smooth pipe wall and low fluid resistance.
Heat Treatment: Eliminate welding internal stress, improve pipe toughness and prevent weld cracking.
Sizing & Straightening: Precision sizing and straightening to ensure dimensional accuracy and pipe flatness.
Fixed-length Cutting: Cut according to customer requirements, neat pipe end without burrs.
Full Quality Inspection: 100% hydrostatic pressure test, weld non-destructive testing and dimensional re-inspection.
Anti-rust Treatment & Packaging: Surface oiled anti-rust or anti-corrosion coating treatment, standard marking and professional packaging.
Main Application Scope
Onshore and offshore oil and natural gas transmission pipeline projects.
Petrochemical industry refined oil, chemical raw material transmission pipelines.
Municipal water supply, industrial circulating water and wastewater treatment pipelines.
Power plant, heating system and energy engineering fluid transmission pipelines.
Low-temperature environment pipeline projects (PSL2 specification recommended).
Long-distance buried pipeline projects with high airtightness requirements.
Quality Inspection & Certification
Full compliance with API 5L (PSL1/PSL2) international standard.
100% online weld flaw detection and full-length hydrostatic pressure test.
Qualified flattening test, bending test and Charpy impact test.
Complete factory test report, material certification and API certification.
Support third-party inspection (SGS/BV) and international project acceptance.
ISO 9001 quality management system certified.
Packaging & Delivery
Packaging: Oiled anti-rust, wrapped with PE film, bundled with steel strips, equipped with plastic end caps; anti-corrosion coated pipes with special protective packaging.
Product Marking: Standard marking including API 5L Grade B, specification, PSL level, batch number, production date and manufacturer logo.
Trade Terms: FOB, CIF, CFR, DAP.
Shipping Ports: Tianjin, Qingdao, Shanghai, Ningbo.
Customization: Custom length, 3PE/FBE anti-corrosion, galvanized treatment, special pipe end processing.
Why Choose Our ERW API 5L Grade B Steel Pipe
International Standard Certification: Strictly produced in accordance with API 5L PSL1/PSL2, meeting global oil and gas pipeline project standards.
Reliable Weld Performance: High-frequency ERW welding, 100% leak test, safe for long-term oil and gas transmission.
High Mechanical Strength: Grade B (L245) material, good toughness and pressure resistance, adapting to harsh environments.
Strict Quality Control: Full-process testing, zero unqualified products delivered, supporting third-party inspection.
Factory Direct Price: No middlemen, cost-effective for bulk oil and gas projects.
Stable Supply & Fast Delivery: Sufficient inventory of conventional sizes, supporting customized production and timely delivery.
Contact Us
For factory quotations, detailed technical parameters, bulk order discounts and delivery arrangements of ERW API 5L Grade B Carbon Steel Pipe, please contact our professional sales team. We provide API 5L certified steel pipes and one-stop supporting solutions for global oil, gas, water and petrochemical pipeline projects.
About us
Hebei Huayang Steel Pipe Co., Ltd. was founded in 2005, with a registered capital of 500 million yuan. The company covers an area of more than 1,000 mu, with annual sales of 10 billion yuan, more than 600 employees and an annual productivity of 2.75 million tons. The company has 17 new automatic steel pipe production lines and 14 high-frequency production lines, with a diameter of 73-660 mm; Three double-sided submerged arc welded steel pipe production lines with diameters of 406.4-1422.4mm;; 24 hot tube expanding production lines, with a diameter of 230-820mm; Two anticorrosion steel pipe production lines with a diameter of 73-1626 mm; 2 automatic painting production lines. With 3 branches and 5 offices, the products are sold to various cities and exported to more than 80 countries such as Southeast Asia, Middle East, Europe and America.
Packaging, transportation and delivery
Packaging, transportation and delivery
At Hebei Huayang Steel Pipe Co., Ltd., we apply standardized and reliable packaging solutions for all our steel pipe products. Our pipes can be securely packed by hexagonal bundling or circular bundling according to product diameter, wall thickness and customer requirements. Each pipe end is protected with high‑strength plastic pipe caps to avoid collision damage, dust and moisture during transportation and storage. The whole bundle is firmly wrapped with durable woven bags to enhance stability and prevent scratches or deformation.
We support a complete range of transportation methods to satisfy global customers, including road transportation, railway transportation, sea freight and container shipping. Based on our strategic location in Cangzhou, Hebei Province, we enjoy convenient access to major ports such as Tianjin Port, which greatly improves logistics efficiency and reduces transportation costs.
For standard specifications and normal order quantities, the general delivery time is about 30 days after order confirmation and deposit receipt. For large‑scale orders, special sizes or customized processing requirements, our production and sales team will formulate a detailed production plan and provide an accurate delivery schedule accordingly to ensure on‑time supply and stable performance for projects and clients worldwide.
Strict quality control
1. During and after the production, experienced quality inspectors randomly check the products to ensure that each steel pipe is qualified for production and application.
2. A nationally recognized laboratory with CNAS certification and certification by French Classification Society.
3. Have CNOOC access certificate, KOC oil company access network, ADNOC Abu Dhabi oil company access network, Petrobras access network, etc.
4. Accept the inspection by the third party designated/paid by the buyer, such as SGS and BV.
Certifications
API 2B
API 5L
GOST
ISO 9001
EN 10219
EN 10210
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