Aluminum Bronze Alloy
Description
Aluminum bronze alloy is used in marine components bearings and industrial manufacturing.
Aluminum bronze is a high-strength, corrosion-resistant copper-based alloy containing 5–12% aluminum, often with iron, nickel, silicon, or manganese added. Known for its exceptional wear, cavitation, and oxidation resistance, it is widely used in marine, industrial, and acidic environments for parts like valves, gears, bearings, and fasteners.
Key Characteristics and Properties
- Composition: Primarily copper and aluminum, with iron and nickel added to enhance mechanical properties.
- Corrosion Resistance: Forms a protective, adherent alumina film, making it highly resistant to sea water and non-oxidizing acids.
- Mechanical Strength: High strength, comparable to medium-carbon steel.
- Wear/Galling Resistance: Superior resistance to wear, fatigue, and erosion.
- Color: Typically golden in color.
Common Applications
- Marine Components: Propeller blades, shafts, pump components, and hardware.
- Industrial Machinery: Heavy-duty bearings, bushes, machine tool ways, and gears.
- Chemical Processing: Valve components, valve bodies, and components for handling acids.
- Fasteners: Nuts and bolts.
Common Alloys and Specifications
- C95400 (Cast): High strength, widely used for bearings and wear plates.
- C95410 (Cast): Contains approx. 10-11.5% aluminum, used for heavy-duty components.
- C62300 (Wrought): Excellent for corrosion resistance.
- C64200 (Wrought): Often used for valve components and fasteners due to its hot-forming capabilities.
Aluminum bronzes are notable for their sustainability, as they are recyclable and possess long service lives, reducing the need for frequent replacement.
