VT machining offers CNC Surface Grinding for Grade 3 Titanium (UNS R50550 / ASTM B348 Gr3), typically supplied annealed. Stronger CP grade than Gr2 with slightly lower formability.
CNC Surface Grinding Notes for Grade 3 Titanium
Grade 3 Titanium is ground with aluminium-oxide or CBN wheels chosen for its hardness (~200-230 HB).
Process Data for CNC Surface Grinding Grade 3 Titanium
| Wheel (supply condition) | Silicon carbide (green) |
|---|---|
| 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 | Flatness 0.002-0.005 mm, thickness ±0.002 mm |
| Thermal growth, 200 mm part, +2 °C | 3.5 µm (CTE 8.8 µm/m·K) |
Typical values for Grade 3 Titanium, Annealed; confirmed on the first part.
Grade 3 Titanium Data Relevant to CNC Surface Grinding
| Equivalent designations | UNS R50550 / ASTM B348 Gr3 |
|---|---|
| Typical supply condition | Annealed |
| Hardness (typical) | ~200-230 HB |
Typical values; we work to your drawing and mill certificate.
More on CNC Surface Grinding Titanium
Finishing options, quality documentation and general cnc surface grinding guidance for all titanium grades are on our CNC Surface Grinding Titanium page.
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Quoting CNC Surface Grinding Grade 3 Titanium
Send a STEP/IGES model or PDF drawing, confirm Grade 3 Titanium and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
Grade 3 Titanium in Other Processes
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Send the drawing, the Grade 3 Titanium 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 Surface Grinding on Grade 3 Titanium?
Machined Grade 3 Titanium edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Does CNC Surface Grinding Grade 3 Titanium require dedicated tooling?
Most Grade 3 Titanium grinding 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 Grade 3 Titanium with CNC Surface Grinding?
Grinding can take Grade 3 Titanium to a fine finish — typically Ra 0.1–0.4 µm, and to a mirror grade on suitable alloys.
Why is Grade 3 Titanium a good choice for CNC Surface Grinding?
Grade 3 Titanium is high strength-to-weight, biocompatible and corrosion resistant, which makes it well suited to CNC Surface Grinding. We tune the process to the alloy so the finished Grade 3 Titanium grinding part meets your dimensional and functional requirements.
What tolerances can you hold for CNC Surface Grinding Grade 3 Titanium?
Achievable tolerances for Grade 3 Titanium 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.