VT machining offers CNC Polishing for D3 Tool Steel (UNS T30403 / 1.2080 / SKD1), typically supplied annealed or hardened. Higher carbon than D2 for maximum wear but lower toughness.
CNC Polishing Notes for D3 Tool Steel
Hardened D3 Tool Steel polishes to a high mirror finish.
Process Data for CNC Polishing D3 Tool Steel
| Best achievable finish | Ra ≤0.02 µm (mirror) |
|---|---|
| Final abrasive | 3-1 µm diamond paste |
Typical values for D3 Tool Steel, Annealed or hardened; confirmed on the first part.
D3 Tool Steel Data Relevant to CNC Polishing
| Equivalent designations | UNS T30403 / 1.2080 / SKD1 |
|---|---|
| Typical supply condition | Annealed or hardened |
| Hardness (typical) | Up to ~64 HRC |
Typical values; we work to your drawing and mill certificate.
More on CNC Polishing Alloy Steel
Finishing options, quality documentation and general cnc polishing guidance for all alloy steel grades are on our CNC Polishing Alloy Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Polishing D3 Tool Steel
Send a STEP/IGES model or PDF drawing, confirm D3 Tool Steel and its condition (we usually see it supplied annealed or hardened), the quantity, critical tolerances and any finish or certificate requirements.
D3 Tool Steel in Other Processes
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Send the drawing, the D3 Tool Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Why is D3 Tool Steel a good choice for CNC Polishing?
D3 Tool Steel is wear-resistant and hardenable for tooling, which makes it well suited to CNC Polishing. We tune the process to the alloy so the finished D3 Tool Steel finishing part meets your dimensional and functional requirements.
Can VT machining make custom D3 Tool Steel parts to my drawing?
Yes. D3 Tool Steel finishing 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.
Does CNC Polishing D3 Tool Steel require dedicated tooling?
Most D3 Tool Steel finishing work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What surface finish is achievable on D3 Tool Steel with CNC Polishing?
Our finishing processes refine D3 Tool 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 Polishing D3 Tool Steel?
CNC Polishing prototypes for D3 Tool 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.