
Produced in stainless steel by Aunov Tech, the Stainless Steel Tube Round Pipe 304 316 Stainless Steel Tube for is formed and machined on the same floor. In operation, the deep drawn tube guides or contains the mating part along its bore. Forming and machining share equipment, staff and batch records, which keeps tolerances consistent from sample to volume without handing the part to another vendor.
Product overview
This stainless steel tube is defined by, the forming route, the tolerance band and the sealing faces, audited against the approved sample at each production release.
Die work and machining for this stainless steel tube sit on the same floor, so the route from print to sample stays short, and the same die can be re-cut from the original data.
How it is manufactured
This is how the stainless steel tube is built: Coil is blanked and drawn through progressive and single-stage dies; the part is annealed between stages so the wall thins evenly.
The sensor tube manufacturing record is archived together with the drawing revision that produced it. Process settings for the sensor tube are archived, so later runs can be compared with the one you approved.
Materials and finishing
Standard stock includes SPCC / DC01 carbon steel, 304 / 316 stainless, aluminium, brass, copper and bronze and this stainless steel tube is costed in 304 / 316 stainless steel.
The finish is chosen for the duty it will see: zinc and nickel plating, chrome, anodising, powder coating and passivation. It is fixed on the drawing for this stainless steel tube, so repeat orders never reopen the question.
The sensor tube manufacturing record is archived together with the drawing revision that produced it. Mill certificates are filed per heat, so sensor tube traceability survives a change of material batch.
Quality control and inspection
Production runs under an ISO 9001 certified quality system: material traceability starts with mill certificates, the first article is CMM-measured against the print, and every production run is inspected against the first-article report. First-article measurement of the sensor tube includes wall thickness. Tests for torque, leakage or pressure can be arranged when the service demands them, and results travel with the batch paperwork.
Applications
The stainless steel tube is specified into industrial equipment and general assembly work across automotive, appliance and industrial programmes.
Drawings for this stainless steel tube are adapted across programmes, so the finish is chosen to cover the harshest of them, and the same first article applies throughout.
Options and variations
Options changed most often
Material – carbon steel, stainless, aluminum or brass; finish – plating, anodizing or coating matched to the working environment; features – closed or open ends, wall bands, inside finish ranges, flanges and port features added by secondary ops; lot size – prototypes for validation, then scheduled batches against a call-off.
The quotation separates what existing tooling already covers from what a change would add: free variations stay free, and anything needing a die or fixture is priced separately.
Specifications
| Item | Stainless Steel Tube Round Pipe 304 316 Stainless Steel Tube for |
|---|---|
| Brand | AUNOV |
| Designing | Made to your 2D/3D drawings (PDF, DWG, STEP, IGS) – DFM notes are returned before any tooling is cut; the agreed version governs every later batch. |
| Tooling | Our toolroom covers die design, wire-cut EDM and maintenance, so tooling lead time stays under our control, and maintenance is tracked against the part number. |
| Samples | Sample approval is documented: dimensions, finish and material recorded for later comparison. |
| Materials | Materials held include carbon steel, 304 / 316 stainless, aluminium and brass; special grades are sourced to the drawing when volumes justify. |
| Surface finish | Zinc, nickel or chrome plating, anodising, passivation or e-coat; the agreed finish travels with the part number. |
| Processing | Blanking, drawing and piercing in sequence, then machining of sealing faces; every stage is logged against your part number. |
| Equipment | Hydraulic presses for drawing, with CNC turning for finishing, with in-house toolmaking to keep dies and fixtures maintained. |
| Tolerance | +/-0.01 mm on turned or milled features, +/-0.03 mm on formed details; GD&T per drawing, PPAP-style reports on request. |
| Delivery terms | FOB, with DDP offered for EU and US addresses, payment by T/T or L/C, quoted in USD or EUR; call-off schedules are supported. |
Packaging and delivery
The packing method protects the surfaces of this stainless steel tube: interleaves, bags or trays are matched to the surface treatment, then cartons are sealed and palletised, with marks and documents as you specify.




