VT machining offers CNC Thread Grinding for 309S Stainless Steel (UNS S30908 / 1.4833), typically supplied annealed. Low-carbon 309 for better weldability in high-temperature fabrications.
CNC Thread Grinding Notes for 309S Stainless Steel
Thread grinding on 309S Stainless Steel is used when lead accuracy or finish exceeds what cutting or rolling can achieve.
Process Data for CNC Thread Grinding 309S Stainless Steel
| Wheel (supply condition) | Aluminium oxide (white/ceramic), soft grade |
|---|---|
| Depth per pass (rough / finish) | 0.01-0.03 / 0.002-0.005 mm |
| Achievable finish | Ra 0.2-0.4 µm |
| Typical size tolerance | Thread class 4h / lead ±0.003 mm per 25 mm |
Typical values for 309S Stainless Steel, Annealed; confirmed on the first part.
Full material data for 309S Stainless Steel (UNS S30908 / 1.4833) is on the CNC Surface Grinding 309S Stainless Steel page.
More on CNC Thread Grinding Stainless Steel
Finishing options, quality documentation and general cnc thread grinding guidance for all stainless steel grades are on our CNC Thread Grinding Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Thread Grinding 309S Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 309S Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
309S Stainless Steel in Other Processes
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Send the drawing, the 309S Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Why is 309S Stainless Steel a good choice for CNC Thread Grinding?
309S Stainless Steel is corrosion resistant, strong and hygienic, which makes it well suited to CNC Thread Grinding. We tune the process to the alloy so the finished 309S Stainless Steel grinding part meets your dimensional and functional requirements.
Does CNC Thread Grinding 309S Stainless Steel require dedicated tooling?
Most 309S Stainless Steel grinding work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What tolerances can you hold for CNC Thread Grinding 309S Stainless Steel?
Achievable tolerances for 309S Stainless Steel grinding depend on the alloy, geometry and feature size. Grinding routinely holds single-micron tolerances on diameter, flatness and parallelism. Exact figures are confirmed against your drawing callouts.
Can VT machining make custom 309S Stainless Steel parts to my drawing?
Yes. 309S Stainless Steel grinding 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.