VT machining offers CNC Honing for 303 Stainless Steel (UNS S30300 / 1.4305 / SUS303), typically supplied annealed. Sulfur addition makes it the most machinable austenitic grade, at the cost of weldability and some corrosion resistance.
CNC Honing Notes for 303 Stainless Steel
Honing gives 303 Stainless Steel bores precise size, roundness and a controlled cross-hatch.
Process Data for CNC Honing 303 Stainless Steel
| Stone | Aluminium oxide or CBN |
|---|---|
| Size tolerance | Ø ±0.002-0.005 mm, roundness ≤0.002 mm |
| Surface finish | Ra 0.1-0.3 µm, 30-45° cross-hatch |
Typical values for 303 Stainless Steel, Annealed; confirmed on the first part.
Full material data for 303 Stainless Steel (UNS S30300 / 1.4305 / SUS303) is on the CNC Polishing 303 Stainless Steel page.
More on CNC Honing Stainless Steel
Finishing options, quality documentation and general cnc honing guidance for all stainless steel grades are on our CNC Honing Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Honing 303 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 303 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
303 Stainless Steel in Other Processes
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Send the drawing, the 303 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What tolerances can you hold for CNC Honing 303 Stainless Steel?
Achievable tolerances for 303 Stainless Steel finishing depend on the alloy, geometry and feature size. We hold tight, repeatable tolerances appropriate to the feature and material. Exact figures are confirmed against your drawing callouts.
What is CNC Honing 303 Stainless Steel and how is it done?
CNC Honing 303 Stainless Steel refers to honing finishes bores with abrasive stones to precise size, roundness and a cross-hatch surface. Applied to 303 Stainless Steel — corrosion resistant, strong and hygienic — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What surface finish is achievable on 303 Stainless Steel with CNC Honing?
Our finishing processes refine 303 Stainless Steel surfaces to Ra values as low as 0.05 µm for cosmetic or sealing faces.
What is the typical lead time and minimum order for CNC Honing 303 Stainless Steel?
CNC Honing prototypes for 303 Stainless Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Does CNC Honing 303 Stainless Steel require dedicated tooling?
Most 303 Stainless Steel finishing work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.