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  1. Materials
  2. Bronze
Bronze
Strength, Machinability, Wear Resistance

Bronze for CNC Machining

Bronze, an alloy composed of copper, offers outstanding machinability and possesses a variety of significant electrical, mechanical, and corrosion-resistant characteristics. Its low friction attributes make it a perfect choice for components that experience constant frictional interaction.

Bronze is created by combining copper with up to about 35% tin and up to 8% lead. The addition of lead alloy, a soft metal, enhances its machinability. Bronze is excellent for use in bearings and marine applications on pumps and fittings where resistance to seawater corrosion is necessary.

The mechanical properties of this material are not as strong as those of many other machinable metals, making it most suitable for low-stress components produced through CNC machining.

Bronze, brass, and other copper alloys possess a variety of significant electrical, mechanical, and corrosion-resistant characteristics. In particular, bronze offers outstanding machinability, rated at 100%. Additionally, it has low friction attributes, making it perfect for components that experience constant frictional interaction.

Please note

The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control.

Finishing options

Machined finish, media blasting, hand-polish, electroplating, powder coating, bead blasting, electropolishing, and various chemical treatments.

Hardness

Material hardness is based on the Brinnell Hardness Number.

View spec sheet

Bronze Alloys

Bronze 642

STRENGTH, CORROSION RESISTANCE, MACHINABILITY

This alloy is ideal when you need both strength and superior corrosion resistance, along with easy machinability. It is commonly used to manufacture bolts, gears, and valves.

Ultimate Strength Yield Strength Fatigue Strength Shear Strength Shear Modulus Hardness (Brinell) Elongation at Break
83 ksi 42 ksi 50 ksi 56 ksi 6,100 ksi 172 12%

Bronze 932

STRENGTH, WEAR RESISTANCE, MACHINABILITY

932 Bearing Bronze is a robust alloy known for its excellent wear and corrosion resistance, attributed to its composition of tin, iron, and zinc. It is primarily utilized in the production of bearings, bushings, and thrust washers. Despite its superior anti-friction characteristics, 932 Bronze cannot be heat-treated.

View Data Sheet

Ultimate Strength Yield Strength Fatigue Strength Shear Strength Shear Modulus Hardness (Brinell) Elongation
40 ksi 18 ksi 16 ksi 64-78 ksi 5,500 ksi 65 20%