Product RFQ page
Structural Pipe
This structural steel pipe RFQ route starts from drawings and engineering requirements, then separates production route, traceability, inspection, coating and staged delivery before price comparison.
RFQ specification table
Details to confirm before price comparison
| RFQ field | Qualification guidance |
|---|---|
| Design input | Drawing, load, dimensions, or project bill of quantities |
| Grade | Q235, Q355, ASTM/EN project grades |
| Wall | Medium or heavy wall by engineering requirement |
| Surface | Black, painted, galvanized, or anti-corrosion system |
| Delivery | Project marking, staged packing, and loading coordination |
Production-route guidance
Structural pipe production-route and project-control checkpoints
This explains the checkpoints a buyer should verify. It does not claim that KeelGauge manufactures the product or that every supplier uses the same route.
- 01
Select the applicable ERW, LSAW, SSAW, or other project-approved production route.
- 02
Verify plate, coil, or billet grade, heat traceability, and engineering dimensions.
- 03
Form and weld or otherwise produce the pipe according to the selected route.
- 04
Control geometry, weld quality, wall thickness, straightness, and cut length.
- 05
Complete specified mechanical, chemical, hydrostatic, NDT, or third-party checks.
- 06
Apply coating, project marking, staged packing, and loading-plan coordination.
Platform-owned RFQ, certified supplier matching
Buyer information remains in the platform CRM. Supplier specialists only receive assigned, qualified leads for quotation and manufacturing confirmation after platform matching.
Decision resources for this RFQ
Buyer questions
Structural Pipe RFQ FAQ
Answers are procurement guidance. Final compliance depends on the selected supplier, product scope, documents, and contract.
What engineering inputs are needed before structural pipe supplier matching?
Provide drawings or a bill of quantities, outside dimensions, wall thickness, grade, design and product standards, production-route restrictions, tolerances, weld requirements, coating system, inspection points, project marking, quantity, delivery sequence and destination. Load data may also be needed, but supplier review does not replace the project engineer's design approval.
How should ERW, LSAW and SSAW structural pipe routes be compared?
Compare only routes permitted by the project specification. Diameter, wall thickness, seam configuration, dimensional tolerance, mechanical requirements, inspection, availability, minimum order and delivery time can all affect suitability. The quotation should name the route and mill rather than presenting different routes under one generic pipe description.
Can project marking and staged delivery be included in the RFQ?
Yes. Provide the required mark format, drawing or zone reference, bundle sequence, packing list structure, delivery batches, lifting restrictions and site priority. These requirements should be reviewed before production because they affect marking control, bundle composition, storage, container planning and documentation cost.
Supplier evidence is matched to the final route
Standards, listings, MTCs, coating records, inspection reports, and project references must belong to the applicable selected supplier and product scope.
Platform Buyer Desk
Build a supplier-ready Structural Pipe request
Include size, wall thickness, grade, standard, surface, processing, quantity, destination, inspection, packing, and purchase timing.
Start structured RFQ
Buyer data stays in the platform CRM.