VT machining offers CNC Cylindrical Grinding for D2 Tool Steel (UNS T30402 / 1.2379 / SKD11), typically supplied annealed or hardened. High-chromium, high wear resistance; harder to grind than A2.
CNC Cylindrical Grinding Notes for D2 Tool Steel
D2 Tool Steel is ground with aluminium-oxide or CBN wheels chosen for its hardness (~255 HB annealed; 58-62 HRC hardened).
Process Data for CNC Cylindrical Grinding D2 Tool Steel
| Wheel (supply condition) | Ceramic aluminium oxide |
|---|---|
| Wheel (hardened to ~62 HRC) | CBN |
| Depth per pass (rough / finish) | 0.005-0.015 / 0.002-0.005 mm |
| Achievable finish | Ra 0.1-0.2 µm |
| Typical size tolerance | Ø ±0.002 mm, roundness 0.001-0.002 mm |
| Diameter growth, Ø50 mm, +3 °C | 1.6 µm |
| Work speed | 15-30 m/min (between centres) |
Typical values for D2 Tool Steel, Annealed or hardened; confirmed on the first part.
Full material data for D2 Tool Steel (UNS T30402 / 1.2379 / SKD11) is on the CNC Surface Grinding D2 Tool Steel page.
More on CNC Cylindrical Grinding Alloy Steel
Finishing options, quality documentation and general cnc cylindrical grinding guidance for all alloy steel grades are on our CNC Cylindrical Grinding Alloy Steel page.
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Quoting CNC Cylindrical Grinding D2 Tool Steel
Send a STEP/IGES model or PDF drawing, confirm D2 Tool Steel and its condition (we usually see it supplied annealed or hardened), the quantity, critical tolerances and any finish or certificate requirements.
D2 Tool Steel in Other Processes
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Send the drawing, the D2 Tool Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What tolerances can you hold for CNC Cylindrical Grinding D2 Tool Steel?
Achievable tolerances for D2 Tool 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.
What surface finish is achievable on D2 Tool Steel with CNC Cylindrical Grinding?
Grinding can take D2 Tool Steel to a fine finish — typically Ra 0.1–0.4 µm, and to a mirror grade on suitable alloys.
Can VT machining make custom D2 Tool Steel parts to my drawing?
Yes. D2 Tool 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.
Why is D2 Tool Steel a good choice for CNC Cylindrical Grinding?
D2 Tool Steel is wear-resistant and hardenable for tooling, which makes it well suited to CNC Cylindrical Grinding. We tune the process to the alloy so the finished D2 Tool Steel grinding part meets your dimensional and functional requirements.
What is CNC Cylindrical Grinding D2 Tool Steel and how is it done?
CNC Cylindrical Grinding D2 Tool Steel refers to cylindrical grinding finishes outer diameters of rotational parts to precise size and roundness. Applied to D2 Tool Steel — wear-resistant and hardenable for tooling — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Does CNC Cylindrical Grinding D2 Tool Steel require dedicated tooling?
Most D2 Tool Steel grinding work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.