CNC · Metal

CNC Brass Alloys

CNC Brass Alloys are metal materials with copper (Cu) and zinc (Zn) as the main components, commonly used for CNC machining. Depending on the alloy composition, brass can provide good mechanical properties, corrosion resistance, and excellent electrical and thermal conductivity.

Excellent Machinability

Corrosion Resistance

Electrical Conductivity

cnc-brass-alloys

Lead Time

5~7 days

Density

8.4-8.7 g/cm³

Typical Tolerance

±0.08 mm

Max Size

3600 x 2500 x 600 mm

Material Profile

Why Brass Alloys Make Sense for CNC Machining

Excellent machinability

Brass alloys such as C360 are among the easiest metals to CNC machine, allowing high cutting speeds and excellent surface finishes.

Good corrosion resistance

Brass resists corrosion in air and many water environments, making it suitable for valves, fittings, and decorative hardware.

Good electrical and thermal conductivity

Brass provides better conductivity than many steels, making it useful for electrical connectors, terminals, and heat-transfer parts.

Attractive appearance

The natural golden color of brass is suitable for visible components, nameplates, instruments, and decorative precision parts.

Performance Snapshot

Material Characteristics at a Glance

Relative performance profile across key engineering parameters. Values are contextual — not absolute stress ratings.

Detail

評価スコア:3/5

Strength

優秀

評価スコア:5/5

Flexibility

低い

評価スコア:2/5

Benefits

  • Excellent machinability, making brass one of the easiest metals to CNC machine
  • Good corrosion and oxidation resistance for decorative and functional parts
  • Good electrical and thermal conductivity
  • Suitable for precision components, fittings, bushings, and low-friction parts

Limitations

  • Higher material cost than many common aluminum or steel options
  • Softer and lower in strength than steel or titanium, making it less suitable for high-load structural parts

Technical Specifications

CNC Brass Alloys Family Data

Material Properties

Density
8.4-8.7 g/cm³
Melting Point
900-940°C
Thermal Conductivity
110-120 W/m·K
Electrical Conductivity
15-20 MS/m
Coefficient of Expansion
19-21 µm/m·K

Machining Rules

Max Build Size
850 x 500 x 500 mm
Minimum Wall Thickness
1 mm
Minimum Assembly Gap
0.01 mm
Minimum End Mill Size
1 mm
Minimum Drill Size
0.5 mm
Tolerances
Typical tolerances are ±0.08 mm, depending on the specific requirements of the part.

Available Finishes

Finishes That Make Sense For Brass Alloys

P

Polishing

Produces a smooth, bright surface that highlights the natural golden color of brass.

N

Nickel Plating

Adds a durable nickel surface to improve wear resistance, corrosion resistance, and decorative appearance.

C

Chrome Plating

Provides a bright, hard, and corrosion-resistant surface for decorative and functional brass components.

C

Clear Coating

Applies a transparent protective layer to slow tarnishing while preserving the natural brass appearance.

Compare & Decide

Pick A Different CNC Family

Wear Resistance

CNC Bronze Alloys

CNC Bronze Alloys are a class of alloy materials containing copper base, usually composed of copper (Cu) with elements such as tin (Sn), aluminum (Al), phosphorus (P), silicon (Si) or manganese (Mn). These alloys have good mechanical properties, wear resistance, corrosion resistance and excellent machinability, and are widely used in industrial manufacturing.

Electrical Conductivity

CNC Copper Alloys

CNC Copper Alloys are a class of high-performance metal materials with excellent electrical conductivity, thermal conductivity, corrosion resistance, and good machinability. With their excellent physical and chemical properties, they play a key role in modern industrial production and are an ideal choice for high-precision, durable, and reliable parts.

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