Api 5L Steel Pipe
API 5L steel pipe is specified for onshore and offshore pipeline systems where consistent mechanical properties and weld integrity are required across long distances. Jialu Metal supplies both seamless and welded API 5L PSL1 and PSL2 grades from A through X70, so a project requiring multiple grades and types does not need to be split across separate mills. One contract covers all grades, one inspection date, and one
- Supplies both seamless and welded API 5L PSL1 and PSL2 pipe on one stock list, reducing sourcing complexity
- Grade coverage from A to X70 allows one order to meet varying pressure and environmental demands
- PSL1 and PSL2 options available, so low- and high-integrity service lines can be sourced together
- One supplier for mixed-type projects avoids splitting orders between seamless and welded mills
Mill certificates issued against the ordered grade and standard. Third-party inspection available on request.
What This Material Is For
API 5L steel pipe is specified for onshore and offshore pipeline systems where consistent mechanical properties and weld integrity are required across long distances. Jialu Metal supplies both seamless and welded API 5L PSL1 and PSL2 grades from A through X70, so a project requiring multiple grades and types does not need to be split across separate mills. One contract covers all grades, one inspection date, and one shipment, reducing coordination effort and delivery risk for buyers sourcing pipeline materials globally.
Why Buyers Choose It
- Supplies both seamless and welded API 5L PSL1 and PSL2 pipe on one stock list, reducing sourcing complexity
- Grade coverage from A to X70 allows one order to meet varying pressure and environmental demands
- PSL1 and PSL2 options available, so low- and high-integrity service lines can be sourced together
- One supplier for mixed-type projects avoids splitting orders between seamless and welded mills
- Third-party inspection can be arranged before shipment, not after arrival
Where It Is Used
- Onshore transmission pipelines requiring API 5L X60 and X70 for high-pressure gas or crude oil transport
- Offshore risers and subsea flowlines using API 5L PSL2 grades with enhanced weld quality and testing
- Pipeline projects in North America, South America, the Middle East or Africa that require API 5L compliance
- Projects needing both seamless and welded pipe types in the same system, such as high-pressure headers and low-pressure distribution
- Projects with mixed grades on one drawing set, such as A/B for low-pressure sections and X60/X70 for mainline
Who It Is For
- Pipeline contractors sourcing mixed-grade and mixed-type pipe for a single project
- Oil and gas operators procuring line pipe for onshore or offshore systems under API 5L
- EPC firms managing integrated pipeline packages requiring one supplier for multiple pipe types
- Distributors stocking API 5L pipe for regional or project-based delivery
- Fabricators needing both seamless and welded pipe for different system zones
Problems It Solves
- Splitting one pipeline scope across multiple mills due to grade or type limitations
- Delays caused by separate inspection dates for seamless and welded pipe from different suppliers
- Inconsistent documentation and certification when sourcing from mills with different standards
- Difficulty in matching PSL1 and PSL2 grades within one order for mixed-service pipelines
- Increased logistics complexity when pipe types and grades arrive from different suppliers
Technical Features
- API 5L PSL1 and PSL2 grades available in both seamless and welded construction
- Grade range from A to X70, covering low- to high-pressure service applications
- Welded pipe produced via ERW or SAW methods, with full radiographic or ultrasonic testing available
- Seamless pipe produced via hot piercing and cold drawing for consistent wall thickness and strength
- Pipe available in standard and custom lengths, with end preparation options including beveling and threading
Grades Standards And Size Range
Values below come from the published product data. Anything not listed is confirmed per enquiry.
| API 5L PSL1 and PSL2 grades | A, B, X42, X46, X52, X56, X60, X65, X70 |
|---|---|
| Construction type | Seamless, Welded |
| Standard | API Spec 5L |
| Weld quality | PSL1 and PSL2 options available |
| Testing | Hydrostatic, NDT, radiographic or ultrasonic testing on request |
| End preparation | Plain end, beveled end, threaded end |
| Length | Standard and custom lengths available |
| Outside diameter and wall thickness | TBC |
Materials
- Carbon steel for general pipeline service in API 5L A and B grades
- Low-alloy steel for higher strength and pressure resistance in X42 through X70 grades
- Seamless pipe made from high-quality billets for consistent mechanical properties
- Welded pipe with controlled weld geometry and post-weld heat treatment where required
Manufacturing Route
Quality Control
- Chemical composition and mechanical property testing against API 5L specification
- In-house CNAS-certified laboratory performs routine testing and verification
- Third-party inspection available on request, bookable at order stage
- Mill certificates issued per purchase order, including test results and compliance statement
- Traceability maintained from billet to final shipment
Customisation Options
- Grade and type (seamless or welded) selected per line item, so one order can mix both
- Custom lengths and end preparation specified at order stage
- OEM service accepted for branding and marking
- Packing and labeling arranged to meet destination port requirements and inspection regimes
How It Compares With The Alternatives
| Seamless pipe | Seamless is more expensive and limited in diameter; welded pipe offers larger sizes and lower cost for standard pressure service |
|---|---|
| ERW welded pipe | ERW is faster and cheaper; seamless is preferred for high-pressure, high-temperature or sour service where no weld seam is acceptable |
| SAW welded pipe | SAW is used for large-diameter, high-volume lines; welded API 5L ERW is better for medium diameters and cost-sensitive projects |
Buying Guide
- Start with the project’s pressure rating and service environment to select the appropriate grade (A/B vs X42–X70)
- Specify whether PSL1 or PSL2 is required, especially for offshore or high-integrity systems
- Indicate if seamless or welded construction is needed, based on code or inspection requirements
- Send the required dimensions and quantity table with the enquiry, as availability varies by size
- Book third-party inspection at order stage to avoid delays in shipment
Questions About Api 5L Steel Pipe
What API 5L grades do you supply?
We supply API 5L PSL1 and PSL2 grades A, B, X42, X46, X52, X56, X60, X65, and X70.
Do you supply both seamless and welded pipe?
Yes. Both seamless and welded construction are available for API 5L grades.
Can one order include both seamless and welded pipe?
Yes. Mixed types and grades can be included in a single order, which is common for pipeline projects.
What certification do you have for API 5L pipe?
We hold ISO 9001, API Q1, PED, CE, API 5L, API 5CT, and API 5DP, with an in-house CNAS-certified laboratory.
Can we arrange third-party inspection?
Yes. Third-party inspection is available on request and is best booked at order stage.
What payment terms and currencies do you accept?
We accept L/C, T/T, PayPal, and credit card, in USD, CAD, AUD, SGD, EUR, or RMB.
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Get Api 5L Steel Pipe Quoted
Send the grade, size and quantity. Availability, price and lead time come back per line item.