Name: China Large Diameter ERW Pipe 273mm - 1219mm API 5L X52 / X60 PSL1 / PSL2 Manufacturers Suppliers Factory - Shenzhoutong Steel Pipe
Brand: Shenzhoutong
SKU: 305203374

Products Description

Parameter	Details
Product Name	Large Diameter ERW Line Pipe
Manufacturing Process	Electric Resistance Welding (ERW)
Applicable Standard	API Spec 5L, ASTM A53, GB/T 9711
Available Steel Grades	API 5L X52 (L360), API 5L X60 (L415)
Quality Level	PSL1, PSL2
Outer Diameter Range	273 mm – 1219 mm (10" – 48" NPS)
Wall Thickness Range	6.35 mm – 25.40 mm
Schedule Equivalent	Sch 20, Sch 40, Sch 80
Available Length	6 – 12 m random length; Fixed length up to 18 m; Custom lengths available upon request
End Types	Plain ends, Beveled ends (for welding connection), Threaded ends with coupling

Mechanical Properties

Steel Grade	Minimum Yield Strength (MPa)	Minimum Tensile Strength (MPa)	Elongation (%)	Hardness Limit (HV)
X52 (L360)	359 – 517	455 – 758	20	≤ 220
X60 (L415)	414 – 586	483 – 758	18	≤ 228

Difference between PSL1 and PSL2

Requirement	PSL1	PSL2
Impact Testing	Not Required	Mandatory (-20°C, 27J minimum) for fracture resistance
Weld Normalizing	Optional	Mandatory (Induction annealing of weld zone at 900–950°C, air cool) to restore weld toughness
Non-Destructive Testing	Spot ultrasonic testing (optional)	100% Ultrasonic Testing + 100% Eddy Current Testing for full defect detection
Chemical Composition Control	Looser tolerance	Stricter carbon equivalent and trace element control for better weldability and corrosion resistance
Suitable Application	General low-pressure transmission pipeline, structural piling	High-pressure long-distance oil/gas transmission, sour service environment, low-temperature operation condition

Delivery Schedule & Stock Availability

Outer Diameter Range	Stock Availability (PSL1)	Lead Time (PSL2 Mill Order)
273 mm – 323.8 mm (10" – 12")	In stock for Gr.B/X52/X60	3 – 4 weeks
355.6 mm – 609.6 mm (14" – 24")	Partial stock available for X52	4 – 5 weeks
609.6 mm – 1219 mm (24" – 48")	Mill order only	5 – 6 weeks

Surface Treatment & Additional Options

Item	Available Options
Surface Coating	Bare black paint, Anti-corrosion epoxy coating, 3PE/PP external coating, Internal anti-corrosion coating
End Protection	Plastic caps, Steel protectors for threaded ends
Special Requirements	Sour service (H₂S resistant) treatment, Ultrasonic testing full report, Third-party inspection (SGS/BV) available

Main Applications

→Crude oil and natural gas long-distance transmission pipelines.

→Urban water supply and drainage pipeline systems.

→Offshore platform and chemical industrial fluid transmission.

→Bridge piling, port construction and marine engineering structural pipes.

→Geothermal energy and mining drainage pipeline projects

Products Show

FAQ

Q: Q: 1. What's the difference between API 5L PSL1 and PSL2 for X52/X60 ERW pipe?

A: A: PSL1 is the basic quality level with lower testing requirements, designed for general low-pressure fluid transmission, structural piling and non-critical applications. PSL2 is the stricter high-performance level, which includes mandatory weld annealing, full-body non-destructive testing, impact toughness testing and tighter chemical composition control, making it suitable for high-pressure long-distance oil and gas transmission, low-temperature operation and sour service projects. We can supply both quality levels with full certification for all X52 and X60 grades in this size range.

Q: 2. Can you supply this product with third-party inspection reports?

A: Yes, absolutely. All our API 5L ERW pipes come with factory material test reports (MTR) that meet international traceability requirements. We can also arrange for third-party inspection by reputable agencies like SGS, BV or Intertek at your request, covering chemical composition, mechanical properties, NDT and dimensional checks before shipment.

Q: 3. What surface coating options do you provide for these pipes?

A: We offer a full range of coating options to suit different application environments, including standard black paint for general use, external 3PE/3PP anti-corrosion coating, internal epoxy anti-corrosion coating for fluid transmission, and special rust-proof packaging for long-term ocean transportation. Custom coating requirements are also welcome.

Q: 4. Do you have in-stock options for fast delivery?

A: We keep common sizes in stock for immediate shipment: all X52 and X60 PSL1 pipes between 273mm and 323.8mm outer diameter are available from stock, and partial stock is held for sizes up to 609.6mm. For PSL2 pipes and sizes larger than 609.6mm, the standard lead time is 3 to 6 weeks from order confirmation, depending on quantity and custom requirements.

Q: 5. What projects is this 273mm-1219mm X52/X60 ERW pipe commonly used for?

A: This size and grade combination is one of the most popular choices for mid-to-large scale projects including long-distance crude oil and natural gas transmission pipelines, urban municipal water supply networks, port and bridge structural piling, offshore platform construction, geothermal energy systems, and industrial fluid transmission lines. It balances cost efficiency and mechanical strength, making it a more practical alternative to seamless pipe for large diameter applications.

Q: 6. Can you cut pipes to custom fixed lengths for my project?

A: Yes, we offer custom cutting services. Standard ERW pipe lengths range from 6m to 12m random length, but we can cut pipes to your required fixed length (up to 18m maximum) with precise end processing to meet your installation needs.