CNC milling parts AL6061-T6 black oxide & sandblasting

Short Description:

Precision Machining Parts

Machinery Axis: 3,4,5,6
Tolerance:+/- 0.01mm
Special Areas : +/-0.005mm
Surface Roughness: Ra 0.1~3.2
Supply Ability:300,000Piece/Month
MOQ:1Piece
3-H Quotation
Samples: 1-3 Days
Lead time: 7-14 Days
Certificate:Medical,Aviation,Automobile,
ISO9001,AS9100D,ISO13485,ISO45001,IATF16949,ISO14001,RoHS,CE etc.
Processing Materials: aluminum, brass, copper, steel, stainless steel, titanium,iron, rare metals，plastic, and composite materials etc.

Send email to us

Product Detail

Product Tags

When you hold a precision CNC-milled part in your hand, the difference is immediately clear. The cool touch of aluminum, the uniform matte surface from sandblasting, and the subtle dark protection of black oxide finishing—it’s more than just a component; it’s the result of precise engineering and surface treatment expertise.

In this guide, we’ll share practical experience from our factory floor, including real testing data, to explain why AL6061-T6 CNC milling parts with black oxide + sandblasting + smooth surface polishing are so widely used in industrial applications.

Why Choose AL6061-T6 for CNC Milling?

AL6061-T6 aluminum alloy is one of the most popular materials for CNC machining because it balances:

High strength-to-weight ratio (tensile strength 290 MPa after T6 treatment).
Excellent machinability – reduces tool wear and shortens cycle time by 15–20% compared to harder alloys.
Corrosion resistance – especially after anodizing or black oxide finishing.
Surface adaptability – ideal for secondary processes like sandblasting and polishing.