CNC Milling Ti-6Al-4V Titanium

VT machining offers CNC Milling for Ti-6Al-4V Titanium (UNS R56400 / R56401 (ELI) / TC4), typically supplied annealed or STA. Same alloy as Grade 5; ELI version (Gr23) is specified for implants.

CNC Milling Notes for Ti-6Al-4V Titanium

We use high-efficiency toolpaths with constant engagement on Ti-6Al-4V Titanium to keep cutting temperature and tool wear under control.

For estimating, a 100 × 100 × 10 mm block of Ti-6Al-4V Titanium weighs about 0.44 kg.

Starting Parameters for CNC Milling Ti-6Al-4V Titanium

Cutting speed (carbide)35-75 m/min
Feed per tooth0.028-0.07 mm
Spindle speed, Ø10 mm end mill1110-2390 rpm
Insert / tool classISO S — sharp PVD-coated carbide
CoolantHigh-pressure flood emulsion (70 bar+ through-tool where possible)
Thermal growth, 100 mm part, +10 °C8.8 µm (CTE 8.8 µm/m·K)

Starting values for Ti-6Al-4V Titanium, Annealed or STA; optimised on the first article.

Ti-6Al-4V Titanium Data Relevant to CNC Milling

Equivalent designationsUNS R56400 / R56401 (ELI) / TC4
Key compositionAl 5.5-6.75%, V 3.5-4.5%
Typical supply conditionAnnealed or STA
Hardness (typical)~36 HRC annealed
Machinability rating22% (AISI B1112 = 100%)

Typical values; we work to your drawing and mill certificate.

How Ti-6Al-4V Titanium Differs

Same alloy as Grade 5; ELI version (Gr23) is specified for implants.

Typical applications: Aerospace, medical, high-performance parts.

Ti-6Al-4V Titanium vs Similar Grades

Ti-6Al-4V TitaniumGrade 5 TitaniumGrade 7 TitaniumGrade 4 Titanium
Key compositionAl 5.5-6.75%, V 3.5-4.5%Al 5.5-6.75%, V 3.5-4.5%CP Ti + Pd 0.12-0.25%CP Ti, O ≤0.40%
Hardness~36 HRC annealed~36 HRC~160-200 HB~250 HB
Tensile (MPa)≥895 (≥828 ELI)≥895≥345≥550
Machinability %22222522
Typical useAerospace, medical, high-performance partsAerospace brackets, implants, motorsportChemical processing, acid handlingDental implants, surgical hardware

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.

Quoting CNC Milling Ti-6Al-4V Titanium

Send a STEP/IGES model or PDF drawing, confirm Ti-6Al-4V Titanium and its condition (we usually see it supplied annealed or STA), the quantity, critical tolerances and any finish or certificate requirements.

Ti-6Al-4V Titanium in Other Processes

Related

Send the drawing, the Ti-6Al-4V Titanium condition and the quantity — pricing and lead time come back the same or next business day.

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Frequently Asked Questions

What tolerances can you hold for CNC Milling Ti-6Al-4V Titanium?

Achievable tolerances for Ti-6Al-4V Titanium 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.

Why is Ti-6Al-4V Titanium a good choice for CNC Milling?

Ti-6Al-4V 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 Ti-6Al-4V Titanium machining part meets your dimensional and functional requirements.

What surface finish is achievable on Ti-6Al-4V Titanium with CNC Milling?

Surface finish on Ti-6Al-4V Titanium is controlled to your specification; we confirm the achievable Ra against your callout.

Can VT machining make custom Ti-6Al-4V Titanium parts to my drawing?

Yes. Ti-6Al-4V Titanium machining 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.