VT machining offers CNC Drilling for 201 Stainless Steel (UNS S20100 / 1.4372 / SUS201), typically supplied annealed. Low-nickel substitute for 304; manganese raises strength but lowers corrosion resistance and work-hardens faster.
CNC Drilling Notes for 201 Stainless Steel
Drilling 201 Stainless Steel uses through-coolant carbide drills and peck cycles, because the chip tends to weld and the hole wall work-hardens if the drill dwells.
For estimating, a 100 × 100 × 10 mm block of 201 Stainless Steel weighs about 0.78 kg.
Starting Parameters for CNC Drilling 201 Stainless Steel
| Cutting speed (carbide) | 60-110 m/min |
|---|---|
| Feed, Ø8 mm drill | 0.064-0.175 mm/rev |
| Spindle speed, Ø8 mm | 2390-4380 rpm |
| Peck depth | 0.5-1 × D (through-coolant preferred) |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
Starting values for 201 Stainless Steel, Annealed; optimised on the first article.
Full material data for 201 Stainless Steel (UNS S20100 / 1.4372 / SUS201) is on the CNC Milling 201 Stainless Steel page.
More on CNC Drilling Stainless Steel
Finishing options, quality documentation and general cnc drilling guidance for all stainless steel grades are on our CNC Drilling Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Drilling 201 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 201 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
201 Stainless Steel in Other Processes
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Send the drawing, the 201 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 201 Stainless Steel a good choice for CNC Drilling?
201 Stainless Steel is corrosion resistant, strong and hygienic, which makes it well suited to CNC Drilling. We tune the process to the alloy so the finished 201 Stainless Steel machining part meets your dimensional and functional requirements.
What surface finish is achievable on 201 Stainless Steel with CNC Drilling?
Surface finish on 201 Stainless Steel is controlled to your specification; we confirm the achievable Ra against your callout.
What tolerances can you hold for CNC Drilling 201 Stainless Steel?
Achievable tolerances for 201 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.
What is CNC Drilling 201 Stainless Steel and how is it done?
CNC Drilling 201 Stainless Steel refers to programmed drilling produces accurately positioned holes, including deep and pattern hole arrays. Applied to 201 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 is the typical lead time and minimum order for CNC Drilling 201 Stainless Steel?
CNC Drilling prototypes for 201 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.