VT machining offers CNC 4-Axis Machining 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 4-Axis Machining Notes for 303 Stainless Steel
Multi-axis machining lets 303 Stainless Steel parts be completed in one or two setups, which improves feature-to-feature accuracy.
For estimating, a 100 × 100 × 10 mm block of 303 Stainless Steel weighs about 0.79 kg.
Starting Parameters for CNC 4-Axis Machining 303 Stainless Steel
| Cutting speed (carbide) | 155-280 m/min |
|---|---|
| Feed per tooth | 0.028-0.088 mm |
| Spindle speed, Ø10 mm end mill | 4930-8910 rpm |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
| Rotary positioning accuracy | ±10 arc-sec (≈ ±0.005 mm at Ø100 mm) |
Starting values for 303 Stainless Steel, Annealed; optimised on the first article.
Full material data for 303 Stainless Steel (UNS S30300 / 1.4305 / SUS303) is on the CNC Milling 303 Stainless Steel page.
More on CNC 4-Axis Machining Stainless Steel
Finishing options, quality documentation and general cnc 4-axis machining guidance for all stainless steel grades are on our CNC 4-Axis Machining Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC 4-Axis Machining 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 is the typical lead time and minimum order for CNC 4-Axis Machining 303 Stainless Steel?
CNC 4-Axis Machining 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.
Why is 303 Stainless Steel a good choice for CNC 4-Axis Machining?
303 Stainless Steel is corrosion resistant, strong and hygienic, which makes it well suited to CNC 4-Axis Machining. We tune the process to the alloy so the finished 303 Stainless Steel machining part meets your dimensional and functional requirements.
What is CNC 4-Axis Machining 303 Stainless Steel and how is it done?
CNC 4-Axis Machining 303 Stainless Steel refers to four-axis machining adds a rotary axis for indexed or continuous machining around a part. 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.
Can VT machining make custom 303 Stainless Steel parts to my drawing?
Yes. 303 Stainless Steel machining is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.
What tolerances can you hold for CNC 4-Axis Machining 303 Stainless Steel?
Achievable tolerances for 303 Stainless Steel machining depend on the alloy, geometry and feature size. Milling holds positional and dimensional tolerances to around ±0.01 mm, tighter with precision setups. Exact figures are confirmed against your drawing callouts.
Does CNC 4-Axis Machining 303 Stainless Steel require dedicated tooling?
Most 303 Stainless Steel machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.