Start with the project specification
State the material grade, governing standard and application; add PSL for line pipe where required.
LEKE PIPING / STEEL PIPE SUPPLY
API 5L line pipe is a key focus of our steel pipe supply. We also supply other carbon steel, stainless steel and alloy steel pipe options. Send your standard, grade, dimensions and project requirements for review.

PRIMARY SUPPLY FOCUS
Specify the API 5L edition, grade and Product Specification Level (PSL 1 or PSL 2).
Include pipe type, outside diameter, wall thickness, length, delivery condition and end preparation. State any project testing, marking or inspection document requirements.
Documentation is reviewed for the order. Supply to API 5L does not by itself indicate certification or licensing.
| Parameter | Details to confirm |
|---|---|
| Specification | API 5L; state the required edition |
| Grade and PSL | Provide the specified grade and PSL 1 or PSL 2 requirement |
| Pipe type | State seamless or the required welded pipe type |
| Dimensions | Outside diameter / nominal size, wall thickness and length |
| Delivery | End preparation, delivery condition and quantity |
| Documents | Inspection, testing, traceability and project requirements |
BEFORE QUOTATION
State the material grade, governing standard and application; add PSL for line pipe where required.
Include diameter, wall thickness, length and pipe type.
List quantity, end preparation, delivery condition and documentation.
MATERIAL OPTIONS
For carbon steel pipe requirements outside the API 5L focus above, provide the exact standard and grade. Material and specification are different dimensions; confirm the required pipe type and supply conditions.
Discuss this pipe requirement →| Parameter | Details to confirm |
|---|---|
| Standard and grade | State the applicable requirement |
| Dimensions | Nominal size / OD, wall, length and ends |
MATERIAL OPTIONS
Specify the stainless steel grade and product standard, together with the manufacturing form, dimensions, surface and documentation requirements.
Discuss this pipe requirement →| Parameter | Details to confirm |
|---|---|
| Material | Required stainless grade and standard |
| Supply details | Size, wall, length, surface and inspection documents |
MATERIAL OPTIONS
State the alloy steel grade, applicable standard and delivery condition. Include the testing and documentation required by the project.
Discuss this pipe requirement →| Parameter | Details to confirm |
|---|---|
| Material | Required alloy grade and standard |
| Supply details | Dimensions, delivery condition and testing requirements |
TECHNICAL RESOURCES
API 5L
Check the stated edition, units and scope. The confirmed project specification governs final requirements.
COMMON QUESTIONS
Include material grade, standard, pipe type, diameter, wall thickness, length, quantity and inspection documents. For line pipe, include the specified PSL where applicable.
Yes. This page also covers other carbon steel, stainless steel and alloy steel pipe requirements. The actual grade and supply scope are confirmed against your enquiry.
Use the actual governing standard and grade for each pipe item. Do not assume all pipe materials on this page follow the same specification.
Yes. Separate the items in the material list and state the actual specification, grade and dimensions for each. Do not apply a line-pipe designation to every material group.
State the required length per piece, number of pieces or total length, and any acceptable length tolerance. Identify fixed-length or variable-length requirements explicitly.
Provide the coating system, surface preparation and inspection requirements, plus the required end protection and packaging. Availability and scope must be confirmed against the enquiry.
No. It estimates pipe material weight from dimensions and density. Coatings, packing, dimensional variation and other shipment items can change the actual shipping weight.
PIPE WEIGHT TOOL
Use actual outside diameter, wall thickness, length and density for a preliminary theoretical weight.
Open steel pipe weight calculator →MATERIAL SELECTION
| Parameter | Details to confirm |
|---|---|
| Carbon steel pipe | Confirm the service, grade, product standard, manufacturing form, diameter and wall thickness. API 5L line pipe requirements are reviewed in the section above. |
| Stainless steel pipe | State the exact grade, corrosion or cleanliness requirements, surface finish, ends and documentation. Do not specify by stainless appearance alone. |
| Alloy steel pipe | State the alloy grade, service temperature, delivery condition, product standard and any heat-treatment or testing requirements. |
| Special material requirements | Send the grade, governing specification and approved drawing. Supply availability and manufacturing scope require confirmation. |
PRODUCT VIEWS
Compare the product views. Use the dimensional drawings and confirmed specifications for your order.


















SEND YOUR REQUIREMENT
Send your drawing or product list directly. Mark any details that still need to be confirmed.
Attach drawings and inspection or documentation requirements where available.