C62300

C62300 is an aluminium bronze alloy, also known as CuAl9Fe3, widely used in aerospace, marine, and industrial applications due to its high strength and excellent corrosion resistance.

Chemical Composition

• Copper (Cu): Approximately 82.2% - 89.5%

• Aluminium (Al): 8.5% - 11.0%

• Iron (Fe): 2.0% - 4.0%

• Manganese (Mn): Up to 1.0%

• Nickel (Ni), Zinc (Zn), and other trace elements as impurities

Mechanical Properties

• Tensile Strength (Typical): 530 – 635 MPa

• Yield Strength (0.5% offset): 275 – 380 MPa

• Elongation: 15% – 25%

• Hardness: Approximately 85 – 100 HRB

Physical Properties

• Density: Approximately 7.66 g/cm³

• Melting Point Range: 1040 – 1045°C

• Thermal Conductivity: 31 Btu/(ft²·ft·hr·°F)

• Electrical Conductivity: 13% IACS

• Coefficient of Thermal Expansion: 9 × 10⁻⁶ /°F

Fabrication

• Good hot working range (~704 – 870°C)

• Brazing: Fair; Gas Shielded Arc Welding: Good

• Soldering: Not recommended

• Good machinability and wear resistance

Applications

• Aerospace components like bearing retainer rings and valve seats

• Marine hardware such as pump rods, shafts, and valves

• Industrial components exposed to corrosive environments

• Medical instruments and surfaces requiring wear resistance