Pipe procurement route
Choose process first, then lock OD and wall
Use the manufacturing route for the first cut. Complete the RFQ with NPS or OD, actual wall or schedule, length, ends, coating, hydrotest, NDT, quantity, and destination.
Products
Products in this family
Review seamless, ERW, LSAW, welded pipe, and fittings for lines, mechanical service, and structural packages. Confirm standard (ASTM/API/EN), grade, OD, wall thickness, end finish, length, NDT, and packing before quotation. Tsingshan Steel aligns MTC, heat marks, and third-party inspection scope with the export route.
Quick filters
Common grades
Common standards
Recommended for RFQ
Commercially important products with complete specifications and RFQ guidance.
Quick quote details
Confirm these points before inquiry so the quotation can be practical and specific.
- State seamless vs welded/ERW and the governing standard.
- Provide OD, WT, length, and end type (PE/BE/threaded if any).
- List required tests: hydro, eddy current, UT, or project NDT.
- Confirm quantity, delivery schedule, and destination port.
- Request MTC 3.1 and marking rules matching the PO.
Showing 12 of 12 products
Buyer path
Compare, specify, then quote
Keep the grade in its governing standard. Use the guide and selection tool before sending the dimensions, quantity, inspection scope and destination.
Required RFQ fields
- grade, standard and PSL where applicable
- manufacturing route and pipe type
- OD, wall thickness or schedule, and length
- end finish and coating requirement
- hydrostatic and NDT scope
- quantity and destination port
- MTC, marking and export packing
Product family comparison
Compare approved Steel Pipes, Tubes and Fittings for Industrial Export specifications
This table uses technically approved specification records only. An empty cell means no public value has been approved yet.
| Product | Standard | Grade | Manufacturing process |
|---|---|---|---|
| ERW Steel PipeView product | ASTM A53/A53M; ASTM A500/A500M | No approved public value | ERW welded |
| Seamless Steel PipeView product | No approved public value | No approved public value | seamless |
| LSAW Steel PipeView product | No approved public value | No approved public value | lsaw-welded |
| API 5L Carbon Steel PipeView product | No approved public value | No approved public value | No approved public value |
| A53 Carbon Steel PipeView product | No approved public value | No approved public value | No approved public value |
| A106 GRB Carbon Steel PipeView product | ASTM A106/A106M | Grade B | No approved public value |
| Welded API 5L Line PipeView product | No approved public value | No approved public value | welded-unspecified |
| Structural Steel PipeView product | No approved public value | No approved public value | No approved public value |
| Seamless Boiler TubeView product | No approved public value | No approved public value | seamless |
| API 5L X80 Welded Steel PipeView product | No approved public value | No approved public value | welded-unspecified |
| X42 Carbon Steel PipeView product | No approved public value | No approved public value | No approved public value |
| A192 Carbon Steel PipeView product | No approved public value | No approved public value | seamless |
Grades, standards, applications
Grades, standards, applications
Common grades
State seamless vs ERW/LSAW, PSL level for line pipe, and OD × wall before quotation.
- Pipe Carbon Steel
- Structural Carbon Steel
- Alloy Steel
Common standards
- ASTM A53
- API 5L
- EN 10219
- ASTM A500
- ASTM A106
- ASTM A53 (SEAMLESS)
- EN 10216 (PROJECT)
- EN 10216
- EN 10204
- ISO 3183
- PROJECT STRUCTURAL PRACTICE
- ASTM A179
Typical applications
- Process and utility piping
- Oil and gas line pipe packages
- Structural and mechanical tubing
- Boiler and heat-service tubes where specified
- Export EPC bulk pipe lists
Size & dimension range
- State OD × wall thickness and length (SRL/DRL/fixed).
- Process: seamless, ERW, or LSAW as required.
- Confirm end finish and surface (black, painted, galvanized).
- For line pipe: PSL/grade plus export bundle packing.
Category FAQ
Category FAQ
When should I choose seamless over ERW?
Choose seamless when pressure, temperature, or the project specification requires it. ERW can be practical for structural and lower-duty lines when the standard and tests are met.
What belongs in a pipe RFQ?
Form, standard, grade, OD, WT, length, ends, quantity, tests, coating if any, packing, and port.
Can fittings ship with pipe in one lot?
Yes when line items and marks stay separate. List fittings by type, size, and standard to keep MTC mapping clean.
Do you support API line pipe grades?
API references can be reviewed against available supply routes. Send the exact grade, PSL, OD, WT, and test scope for a practical check.
Product center
Switch to Other Steel Families
Navigate to other metallurgical groups for cross-reference pre-qualification.
Request a Quote
Choose Steel Pipes, Tubes and Fittings for Industrial Export for your application
Send the grade, dimensions, quantity and destination port. We will match the product and prepare a specific quotation.