
Produced in stainless steel by Aunov Tech, the Stainless Steel Temperature Control Tubes Industrial Tubes 304 is formed and machined on the same floor. Once installed, the deep drawn tube provides a sealed cylindrical body the assembly builds into. Forming and machining share equipment, staff and batch records, and a design change is re-sampled in one place with no third party in the loop.
Product overview
The critical features of this stainless steel tube are, the draw ratio, corner radii and the faces that must stay flat, all held to the drawing and verified at first article.
The press shop and machine shop that make this stainless steel tube share one floor, so feasibility questions are answered on the shop floor, and the die record stays with your part number.
From coil to finished part
Production follows a defined route: The drawn envelope is produced in stages with anneals between them; secondary machining holds the seats, threads and faces that forming cannot produce.
The closed cup manufacturing record is archived together with the drawing revision that produced it. Process settings for the closed cup are archived, so later runs can be compared with the one you approved.
Materials and finishing
Base materials in stock: carbon steel SPCC / DC01, 304 and 316 stainless, aluminium, brass and copper with 304 / 316 stainless steel specified on the drawing for this stainless steel tube.
The finish is chosen for a clean working surface: zinc and nickel plating, chrome, anodising, powder coating and passivation. The agreed finish for this stainless steel tube travels with the part number on every reorder.
The closed cup tooling and setup record is stored against the part number, so nothing depends on someone remembering. Process settings for the closed cup are archived, so later runs can be compared with the one you approved.
Quality control
The factory operates with ISO 9001 certification: mill certificates cover every delivery of stock, the first article is CMM-measured against the print, and production batches are inspected on a sampling plan. First article of the closed cup carries wall thickness data. Functional testing – torque, leak or pressure – can be written into the plan, and the report is packed with the shipment.
Typical applications
You will find this stainless steel tube inside temperature sensing and control assemblies for OEM and Tier-1 customers.
One drawing for this stainless steel tube is commonly applied to several programmes, so the finish is chosen to cover the harshest of them, and cost per piece stays at the volume tier.
Customization and options
The options customers tune most
Points customers normally tailor on this stainless steel tube: material grade, wall band, flange shape, thread size and finish for the working environment, and whether orders run as prototypes, pilot lots or scheduled batches.
The quote for this stainless steel tube separates tooled options from new work, so you can see which options are free and which need new tooling. The approved revision of the closed cup drawing becomes the master version.
Specifications
| Item | Stainless Steel Temperature Control Tubes Industrial Tubes 304 |
|---|---|
| Brand | AUNOV |
| Designing | Your drawing sets the part – DFM notes are returned before any tooling is cut; the agreed version governs every later batch. |
| Tooling | Dies, fixtures and gauges are made in our own toolroom, so tooling lead time stays under our control, and first-article timing is measured from the tooling start date. |
| Samples | Sample parts are measured and reported before submission, 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 | Plating, powder coating, anodising or polishing, per the print; alternatives quoted with the quotation, samples approved in writing. |
| 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; secondary ops run on CNC turning centres, inspection on the CMM. |
| Tolerance | +/-0.02 mm on fitted diameters, +/-0.1 mm on formed ends; capability is checked on the first article before the run continues. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, T/T with deposit and L/C for larger runs; price breaks tie to annual volume. |
Packing and shipment
Packing for this stainless steel tube is chosen around the coating: interleaves, polybags or formed trays are selected according to the coating, in sealed export cartons, palletised and marked as you direct.




