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Bronze
CNC Machining Services

Material
Lead Time
5 – 22 Days
Cost

$$

Machined Bronze Description

CNC machined bronze is a strong and flexible metal used in many industries, such as aerospace, automotive, marine, and medical. Our skilled machinists use precise tools to shape the metal according to specific designs. It comes in different sizes and shapes, making it easy to create various parts, including valve components, bearing housings, bushings, and gears. Bronze is also highly corrosion-resistant, making it an excellent choice for harsh environments.

Key Characteristics

Characteristics may vary depending on the grade/alloy.

  • First Layer Oxidation, Otherwise Corrosion Resistant
  • Ductile 
  • High Strength
  • Low Friction
  • Thermal Conduction
  • Wear Resistant

Applications

  • Bearings
  • Bushings
  • Connectors
  • Gears
  • Hardware Mounts
  • Marine Applications
  • Valve Bodies

Industries Utilizing Machined Bronze

  • Aerospace & Defense
  • Automotive
  • Construction
  • Marine 
Why should you choose machined bronze for your project?

Machined bronze is an excellent material for projects that need strength, durability, and resistance to corrosion and wear. It typically contains 80-90% bronze, giving it stronger wear resistance than other materials. Bronze has a low coefficient of friction, making it ideal for bearings and other applications where smooth movement is essential.

It is also corrosion-resistant and can handle exposure to water, chemicals, and other harsh conditions. Its ability to keep its properties in extreme temperatures makes it a popular choice for industrial and aerospace uses. Using machined bronze for your project ensures a reliable, long-lasting component that can handle heavy-duty demands.

Finishes for machined bronze

Machined bronze can be finished in different ways to achieve various looks and properties. One option is a polished finish, which uses a polishing wheel or abrasive material to create a smooth, shiny surface. This finish can be a soft satin or a bright mirror-like shine.

Another option is to plate the bronze with a thin layer of gold, silver, nickel, or other metals. This plating improves corrosion resistance and adds color and shine.

Bronze can also receive chemical treatments to change its color or surface qualities. Common treatments include patination, which gives a vintage look, and anodizing, which creates a firm, colorfast surface.

Bronze FAQs

What is bronze?

Bronze is an alloy made mainly of copper. Other metals, like tin, zinc, or aluminum, are added. Bronze is strong, resists corrosion, and has a unique look. For centuries, people have used bronze for many things, including art and tools. It is warm and golden and popular for sculptures, buildings, and memorial items.

What are standard finishes for machined bronze?

Machined bronze components can have different finishes to improve their look and durability. You can choose from several options, such as polishing, brushing, and lacquering. Polishing makes the surface smooth and shiny, while brushing gives it a subtle texture. Lacquering adds a protective coating that helps prevent tarnishing and corrosion.

Advantages of machining bronze.

Bronze is an excellent material for CNC machining projects because of its special qualities. It is strong, corrosion-resistant, and conducts heat well, making it suitable for many uses. Bronze also reduces friction and wear, which leads to smoother and more accurate machined parts. Its golden color adds visual appeal, making it a popular choice for decorative and architectural items. Prototek has the expertise in CNC machining to ensure your bronze parts meet high-quality standards.

Disadvantages of machining bronze.

Bronze has a unique look and resists corrosion, but it can be challenging to machine with CNC tools. Because bronze is relatively soft, it can deform and wear out more easily during machining. Its higher density than other metals can lead to faster tool wear and slower machining speeds. It’s essential to consider these issues when using bronze in CNC machining.

Bronze Machining Alloys

Bearing Bronze C93200

Heat Treatable

No

Tensile Strength (Ultimate, PSI)

34800

Fatigue Strength (PSI)

16000

Hardness (Brinell)

65

Milled Parts Machinability (AISI Rating)

70%

Bronze C31400

Heat Treatable

No

Tensile Strength (Ultimate, PSI)

40000 – 60000

Fatigue Strength (PSI)

N/A

Hardness (Brinell)

56 – 59

Milled Parts Machinability (AISI Rating)

80%

Phosphor Bronze C54400

Heat Treatable

No

Tensile Strength (Ultimate, PSI)

47000 – 100000

Fatigue Strength (PSI)

N/A

Hardness (Brinell)

N/A

Milled Parts Machinability (AISI Rating)

80%

Silicon Aluminum Bronze C64200

Heat Treatable

No

Tensile Strength (Ultimate, PSI)

75000 – 102000

Fatigue Strength (PSI)

50000

Hardness (Brinell)

N/A

Milled Parts Machinability (AISI Rating)

60%

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