
This Custom Metal Deep Drawn One End Closed Stainless Steel Flanged Tube is an Aunov Tech production part in stainless steel, quoted and built to customer print. On the product, the deep drawn tube provides a sealed cylindrical body the assembly builds into. Die work, machining and CMM inspection are all in-house, which keeps tolerances consistent from sample to volume without a second supplier involved.
Product overview
The specification of this stainless steel tube turns on, the draw ratio, corner radii and the faces that must stay flat, each measured at first article and gauged on production batches.
Tooling and finishing for this stainless steel tube run under one roof, which keeps revision loops short and samples fast, with the tooling history retained in house.
How it is manufactured
Production follows a defined route: Coil is blanked and then drawn down in successive stages; the finishing operations hold the concentricity the drawing calls for.
Production batches of the flanged tube caps, are gauged back to the signed first article, not to a memory of it. Process settings for the flanged tube caps, are archived, so later runs can be compared with the one you approved.
Materials and surface finish
Working stock covers carbon steel SPCC / DC01, 304 and 316 stainless, aluminium, brass and copper with this stainless steel tube costed in 304 / 316 stainless steel.
The surface treatment is picked to match the service conditions: plating, anodising, powder coating, electrophoresis and passivation. It is written into the drawing for this stainless steel tube, so it cannot drift between batches.
Batch records for the flanged tube caps, are filed against the part number, so process settings are reused instead of re-invented. That record is what every flanged tube caps, reorder is built on, so nothing changes silently between shipments.
Quality control and inspection
Production runs under an ISO 9001 certified quality system: mill certificates cover every delivery of stock, a full CMM report approves the first article, and routine sampling keeps batches aligned with the first article. Wall thickness of the flanged tube caps, is measured at first article. Where the application asks for it, torque, leak or pressure testing is added to the plan, and the batch file carries the results.
Applications
Typical installation of the stainless steel tube is in industrial equipment and general assembly work for customers who own the drawing and the tooling.
The same stainless steel tube is used across several platforms, so wall bands and finishes are selected to cover the widest duty, and the die does not have to change.
Customization and options
Options buyers most often change on this flanged tube caps,
Variations that come up most often on this stainless steel tube: wall thickness bands, flange geometry, thread call-outs and the surface finish, and how the order is released – sample, pilot run or scheduled call-off.
Each quote for this stainless steel tube states which variations are already tooled, so there are no surprise tooling charges after approval. The quotation for the flanged tube caps, states both quantities and price breaks.
Specifications
| Item | Custom Metal Deep Drawn One End Closed Stainless Steel Flanged Tube |
|---|---|
| Brand | AUNOV |
| Designing | Driven by your drawing or a physical sample – DFM notes are returned before any tooling is cut; the agreed version governs every later batch. |
| Tooling | Progressive and forming dies are designed, built and maintained on site. |
| Samples | Samples are issued for approval before the run, so the part is proven before it is made in volume, and mass production is gated on that approval. |
| Materials | Stock covers carbon steel (SPCC / DC01), 304 / 316 stainless, aluminium and brass; the final grade is fixed with the drawing review. |
| Surface finish | Finish selected from the drawing: plating, coating, anodising or passivation; masking and laser marking available where needed. |
| Processing | Drawn-tube process with in-line annealing and finish turning; batch records are filed so a repeat order starts from approved data. |
| Equipment | Tube drawing benches with in-line annealing furnaces, with CNC turning centres for secondary operations and CMM inspection. |
| Tolerance | +/-0.02 mm on turned diameters, wall held to the agreed band; dimensional reports accompany the first article. |
| Delivery terms | FOB Ningbo or Shanghai, payment by T/T, L/C at sight or D/P; each volume tier carries its own quoted price. |
Packaging and delivery
This stainless steel tube is packed to protect the finish: each coating gets its own packing – interleaves, bags or trays, in sealed export cartons, palletised and marked as you direct.




