VT machining offers CNC Wire EDM for 309 Stainless Steel (UNS S30900 / 1.4828), typically supplied annealed. Higher Cr/Ni for oxidation resistance to ~1000 °C.
CNC Wire EDM Notes for 309 Stainless Steel
Wire EDM cuts 309 Stainless Steel with fine detail and sharp internal corners down to the wire radius.
Process Data for CNC Wire EDM 309 Stainless Steel
| Area cutting rate (0.25 mm brass wire) | ~130 mm²/min |
|---|---|
| Linear speed at 10 mm thick | ~13 mm/min |
| Linear speed at 30 mm thick | ~4.3 mm/min |
| Linear speed at 60 mm thick | ~2.2 mm/min |
| Achievable accuracy | ±0.005 mm with 3-4 skim passes; Ra 0.4-0.8 µm |
Typical values for 309 Stainless Steel, Annealed; confirmed on the first part.
309 Stainless Steel Data Relevant to CNC Wire EDM
| Equivalent designations | UNS S30900 / 1.4828 |
|---|---|
| Hardness (typical) | ≤95 HRB |
| Density | 7.9 g/cm³ |
Typical values; we work to your drawing and mill certificate.
More on CNC Wire EDM Stainless Steel
Finishing options, quality documentation and general cnc wire edm guidance for all stainless steel grades are on our CNC Wire EDM Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Wire EDM 309 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 309 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
309 Stainless Steel in Other Processes
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Send the drawing, the 309 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
How clean are the edges produced by CNC Wire EDM on 309 Stainless Steel?
Machined 309 Stainless Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Can you EDM-machine hardened 309 Stainless Steel?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult 309 Stainless Steel can be machined to fine detail and tight tolerance without distortion.
Does CNC Wire EDM 309 Stainless Steel require dedicated tooling?
Wire EDM needs no shaped tooling; sinker EDM uses a shaped electrode we produce in-house for your cavity.
What is the typical lead time and minimum order for CNC Wire EDM 309 Stainless Steel?
CNC Wire EDM prototypes for 309 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.
What is CNC Wire EDM 309 Stainless Steel and how is it done?
CNC Wire EDM 309 Stainless Steel refers to wire EDM cuts conductive metal with a charged wire, achieving fine detail and tight tolerance with no cutting force. Applied to 309 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.