Tube Size Reference for Your Bending RFQ
Give your supplier the tube section and finished geometry so they can check stock, bending and assembly fit before quoting.
Example tube callouts and what to verify
| Section | Illustrative callout | Verify before quoting |
|---|---|---|
| Round | 25.4 mm OD × 1.5 mm wall | Check clamp fit and the required centerline radius. |
| Square | 25 × 25 × 2 mm wall | Show bend plane and seam orientation if they matter. |
| Rectangular | 40 × 20 × 2 mm wall | Identify which face bends and show end orientation. |
| Pipe | Nominal pipe size and schedule | Verify actual OD and wall against the specified pipe standard. |
Use these examples to prepare your request. Confirm stock and acceptance criteria for your project.

Before you send your RFQ
- Include alloy or grade and state whether substitutions are allowed.
- When preparing files for tube bending quotes, show bend angle, centerline radius, end positions and trim requirements.
- Agree how to check ovality, wall thinning or end location where the assembly depends on them.

