STAINLESS TUBES · PRECISION REDRAWN
Precision redrawn stainless tube
Precision redrawn tube goes through one or more additional cold-drawing passes after extrusion, to tighten dimensional tolerance and improve surface finish. Used in hydraulics, instrumentation and OEM applications where mechanical clearance must stay constant.
Request a quoteDimensional table
| NPS | DN | OD (mm) | SCH 10S (mm) | SCH 40S (mm) | SCH 80S (mm) |
|---|---|---|---|---|---|
| 1/8 | 6 | 10.3 | 1.24 | 1.73 | 2.41 |
| 1/4 | 8 | 13.7 | 1.65 | 2.24 | 3.02 |
| 3/8 | 10 | 17.1 | 1.65 | 2.31 | 3.2 |
| 1/2 | 15 | 21.3 | 2.11 | 2.77 | 3.73 |
| 3/4 | 20 | 26.7 | 2.11 | 2.87 | 3.91 |
| 1 | 25 | 33.4 | 2.77 | 3.38 | 4.55 |
| 1 1/4 | 32 | 42.2 | 2.77 | 3.56 | 4.85 |
| 1 1/2 | 40 | 48.3 | 2.77 | 3.68 | 5.08 |
| 2 | 50 | 60.3 | 2.77 | 3.91 | 5.54 |
| 2 1/2 | 65 | 73 | 3.05 | 5.16 | 7.01 |
| 3 | 80 | 88.9 | 3.05 | 5.49 | 7.62 |
| 4 | 100 | 114.3 | 3.05 | 6.02 | 8.56 |
| 5 | 125 | 141.3 | 3.4 | 6.55 | 9.53 |
| 6 | 150 | 168.3 | 3.4 | 7.11 | 10.97 |
| 8 | 200 | 219.1 | 3.76 | 8.18 | 12.7 |
| 10 | 250 | 273 | 4.19 | 9.27 | 12.7 |
| 12 | 300 | 323.8 | 4.57 | 9.53 | 12.7 |
| 14 | 350 | 355.6 | 4.78 | — | — |
| 16 | 400 | 406.4 | 4.78 | — | — |
| 18 | 450 | 457 | 4.78 | — | — |
| 20 | 500 | 508 | 5.54 | — | — |
| 24 | 600 | 610 | 6.35 | — | — |
What is precision redrawn stainless tube?
Redrawn tube is a seamless tube that has gone through one or more additional cold-drawing passes after initial extrusion, which tightens its dimensional tolerance (classes D1 to D4 and T1 to T4 per ISO 1127) and improves surface finish, at a higher production cost than standard extruded tube.
How to choose it?
This product is warranted when standard dimensional tolerance isn't enough: a hydraulic fitting needing constant clearance, instrumentation, or an OEM mechanical part where outer diameter must stay within a tight range along the full length. For standard process piping, a regular extruded tube is enough and costs less.
Available grades
Standard austenitic grades (304L, 316L) cover hydraulics and instrumentation. Heat-resistant grades (310/310S, 253 MA) apply to motorsport exhaust tubes exposed to high temperature.
Applicable standards
- ASTM A269
- EN 10216-5
- ISO 1127
Partner stock or mill?
Redrawn tube follows the same stock/mill logic as the rest of the cluster, with the tighter tolerance mainly affecting production lead time at volume.
From partner stock: 48 hours for urgent needs, 5 working days as standard.
We go through the mill when volume and lead time make sense — typically container-load quantities, sometimes less, with a lead time of a few months including transport. That arbitration is ours to make: when buying at source works out cheaper for you, we say so.
Frequently asked questions
- What dimensional tolerance do you offer?
- ISO 1127 classes D1 to D4 (diameter) and T1 to T4 (thickness) are the common reference — send the class required by your specification in the quote request.
- Does redrawing change the tube grade?
- No, the grade stays the same — redrawing is a cold mechanical operation, not a metallurgical treatment that would change composition.
- Is this product suited to motorsport exhaust?
- Yes, it is a common use: tight tolerance for bending and assembly, in standard austenitic or heat-resistant grades depending on the target exhaust temperature.
- What is the lead time for a redrawn tube order?
- As with the rest of the cluster: 5 working days standard from partner stock, longer if tolerance or diameter fall outside the everyday range — to confirm via quote request.