VT machining offers CNC Milling for Grade 7 Titanium (UNS R52400 / ASTM B348 Gr7), typically supplied annealed. Gr2 with palladium for superior resistance in reducing acids.
CNC Milling Notes for Grade 7 Titanium
We use high-efficiency toolpaths with constant engagement on Grade 7 Titanium to keep cutting temperature and tool wear under control.
For estimating, a 100 × 100 × 10 mm block of Grade 7 Titanium weighs about 0.45 kg.
Starting Parameters for CNC Milling Grade 7 Titanium
| Cutting speed (carbide) | 40-85 m/min |
|---|---|
| Feed per tooth | 0.028-0.07 mm |
| Spindle speed, Ø10 mm end mill | 1270-2710 rpm |
| Insert / tool class | ISO S — sharp PVD-coated carbide |
| Coolant | High-pressure flood emulsion (70 bar+ through-tool where possible) |
| Thermal growth, 100 mm part, +10 °C | 8.8 µm (CTE 8.8 µm/m·K) |
Starting values for Grade 7 Titanium, Annealed; optimised on the first article.
Grade 7 Titanium Data Relevant to CNC Milling
| Equivalent designations | UNS R52400 / ASTM B348 Gr7 |
|---|---|
| Key composition | CP Ti + Pd 0.12-0.25% |
| Typical supply condition | Annealed |
| Hardness (typical) | ~160-200 HB |
| Machinability rating | 25% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How Grade 7 Titanium Differs
Gr2 with palladium for superior resistance in reducing acids.
Typical applications: Chemical processing, acid handling.
Grade 7 Titanium vs Similar Grades
| Grade 7 Titanium | Grade 9 Titanium | Grade 5 Titanium | Grade 12 Titanium | |
|---|---|---|---|---|
| Key composition | CP Ti + Pd 0.12-0.25% | Al 2.5-3.5%, V 2-3% | Al 5.5-6.75%, V 3.5-4.5% | Mo 0.2-0.4%, Ni 0.6-0.9% |
| Hardness | ~160-200 HB | ~28 HRC | ~36 HRC | ~200-235 HB |
| Tensile (MPa) | ≥345 | ≥620 | ≥895 | ≥483 |
| Machinability % | 25 | 25 | 22 | 25 |
| Typical use | Chemical processing, acid handling | Aircraft hydraulic tubing, bike frames | Aerospace brackets, implants, motorsport | Heat exchangers, chemical vessels |
More on CNC Milling Titanium
Finishing options, quality documentation and general cnc milling guidance for all titanium grades are on our CNC Milling Titanium page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Milling Grade 7 Titanium
Send a STEP/IGES model or PDF drawing, confirm Grade 7 Titanium and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
Grade 7 Titanium in Other Processes
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Send the drawing, the Grade 7 Titanium condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Why is Grade 7 Titanium a good choice for CNC Milling?
Grade 7 Titanium is high strength-to-weight, biocompatible and corrosion resistant, which makes it well suited to CNC Milling. We tune the process to the alloy so the finished Grade 7 Titanium machining part meets your dimensional and functional requirements.
Does CNC Milling Grade 7 Titanium require dedicated tooling?
Most Grade 7 Titanium machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What is the typical lead time and minimum order for CNC Milling Grade 7 Titanium?
CNC Milling prototypes for Grade 7 Titanium 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 material thickness or size range suits CNC Milling Grade 7 Titanium?
We machine Grade 7 Titanium across a broad size range; share your part envelope for confirmation.