ASTM API 5L LSAW steel pipe

ASTM API 5L LSAW Steel Pipe

Product Overview

The API 5L LSAW Steel Pipe from JS FITTINGS is a heavy-duty solution for high-pressure energy transmission. Using the advanced JCOE and UOE forming processes, we produce large-diameter pipes (up to 1524mm) with wall thicknesses up to 50mm+. Engineered for PSL2 critical service, our pipes deliver exceptional fracture toughness and dimensional precision, ensuring reliability in offshore, deep-water, and cross-continent pipeline projects.

Key Features & Advantages

Dual-Standard Compliance: API 5L + ASTM A53/A252 certification ensures your projects meet both American petroleum and general structural requirements.

Large-Diameter Capability: Manufacture pipes up to 1524mm diameter with precision tolerance control for automated field welding compatibility.

High-Pressure Performance: Wall thickness options up to 50mm+ provide the structural integrity needed for deepwater offshore and high-pressure transmission lines.

Superior Weldability: Low Carbon Equivalent (CE) composition guarantees excellent field welding performance while maintaining joint integrity.

Fracture Toughness: PSL2 delivery conditions include mandatory Charpy V-Notch testing to prevent catastrophic crack propagation in harsh environments.

Technical Specifications

 Standards & Certifications

· API 5L: American Petroleum Institute Specification

· ASTM A53/A252: Structural and general purpose applications

· ISO 9001: Quality management system certification

· CE Marking: European conformity standards

· GOST-R: Russian technical regulation compliance

· Third-Party Inspection: SGS, TUV, BV, Lloyd's available

Chemical Composition & Mechanical Properties

Chemical Composition Control:

· Carbon (C): ≤0.24% for enhanced weldability

· Manganese (Mn): 0.90-1.65% for strength optimization

· Sulfur (S): ≤0.015% (PSL2) for improved toughness

· Phosphorus (P): ≤0.020% (PSL2) for crack resistance

· Carbon Equivalent: Controlled per grade requirements

Mechanical Properties:

· Impact toughness testing at specified temperatures

· Hydrostatic testing to 1.5x design pressure

· 100% ultrasonic and radiographic weld inspection

· Dimensional tolerance: ±0.5% on diameter, ±12.5% on wall thickness

Manufacturing Process

Our ASTM Api 5L Lsaw Steel Pipe follows a comprehensive 20-step manufacturing sequence:

Plate Preparation: Edge milling and beveling → Board inspection → Edge crimping

Forming Process: JCOE molding → Tack welding → Internal welding

Quality Control: Slag removal → External welding → Ultrasonic inspection

Final Processing: X-ray inspection → Mechanical expansion → Hydrostatic testing

Finishing: End facing and beveling → Weighing → Spray marking → Final inspection

This controlled process ensures uniform wall thickness and superior weld integrity throughout the pipe length.

Surface Finish & Coating Options

Standard Finishes:

· Shot blasted to Sa2.5 surface preparation

· 100-meter automated painting line application

· Eco-friendly coating systems available

Coating Systems:

· 3PE (Three-layer polyethylene) for buried pipelines

· FBE (Fusion bonded epoxy) for corrosion protection

· Coal tar enamel for marine environments

· Internal flow coatings for enhanced throughput

Applications

Oil & Gas Transmission: Trunk line transportation of crude oil and natural gas across continental distances with high-pressure requirements.

Offshore Pipeline Systems: Subsea installations where collapse resistance and external pressure capability are critical for deepwater operations.

Sour Service Applications: H2S-containing environments requiring special metallurgy to prevent hydrogen-induced cracking and sulfide stress corrosion.

Structural Piling: Foundation support for bridges, wind turbines, and marine structures where ASTM A252 compatibility provides dual-use flexibility.

Industrial Process Lines: Chemical plants and refineries requiring large-diameter transport with stringent safety factors.

Packaging & Delivery

Protective Packaging: Pipe ends capped with plastic protectors, bundled with steel strapping for handling stability.

Global Logistics Network: Specialized shipping solutions covering Central Asia and Middle East markets with dedicated oil & gas project logistics.

Documentation Package: Mill test certificates, third-party inspection reports, and compliance documentation included with each shipment.

Delivery Timeline: Standard production lead time 25-35 days, expedited service available for urgent projects.

Customization Service

Cut-to-Length Service: Precision cutting to your exact specifications eliminates field waste and installation time.

Custom End Preparation: Beveling angles, threading, and special end configurations available per your welding procedures.

Special Grades: Non-standard chemical compositions and mechanical properties engineered for unique service conditions.

Marking Requirements: Custom stenciling, color coding, and identification systems to match your project specifications.

Quality Control

Every pipe undergoes comprehensive testing protocols:

· 100% ultrasonic weld inspection using automated systems

· Hydrostatic testing to verify pressure capability

· Charpy V-Notch impact testing for PSL2 grades

· Dimensional verification using laser measurement systems

· Chemical composition analysis via optical emission spectroscopy

Our quality management system ensures traceability from steel plate source through final delivery.

Certificates

We hold multiple certifications to guarantee product quality and reliability:

• ISO 9001:2015
• API 5L
• CE marking
• GOST-R
• Additional certifications available upon request

Customer Reviews

"I am thoroughly impressed with the quality of the seamless pipe fittings provided by JSFITTINGS. Each piece we've received has been meticulously crafted, displaying a standard of workmanship that is truly top-notch."

"We tested the elbows and flanges, their performance is very nice. We will make the new purchase plan for the warehouse."

"JSFITTINGS completed the production ahead of schedule. The delivery was equally impressive – it arrived earlier than anticipated, which greatly helped in keeping our project timeline on track."

FAQ

Q: Can you provide HIC and SSCC resistant LSAW pipes for sour service?
A: Yes. We specialize in Sour Service (NACE MR0175/ISO 15156) pipes. We use vacuum-degassed, calcium-treated steel plates with low sulfur and phosphorus content to prevent hydrogen-induced cracking.

Q: What's the difference between PSL1 and PSL2 specifications?

A: PSL2 includes mandatory impact toughness testing, stricter chemical composition limits, and enhanced non-destructive testing requirements for critical applications.

Q: Can you provide sour service grades for H2S environments?

A: Yes, we manufacture HIC-resistant grades with special sulfur and inclusion control for hydrogen sulfide service conditions.

Q: What's your minimum order quantity for ASTM Api 5L Lsaw Steel Pipe?

A: Our 30,000-ton production capacity allows flexible order sizes, typically starting from 50 tons depending on specifications.

Q: Do you provide third-party inspection services?

A: We work with SGS, TUV, BV, and Lloyd's Register for independent quality verification when required by your specifications.

Q: What coating systems do you recommend for buried pipelines?

A: 3PE coating systems provide optimal corrosion protection for buried ASTM Api 5L Lsaw Steel Pipe installations in most soil conditions.

Contact Us

Get your ASTM API 5L LSAW steel pipe quote today. Email: admin@jsfittings.com mailto:admin@jsfittings.com for technical specifications and pricing.