The fine grain continuous cast process creates a microstructure where the individual crystals (grains) are small and uniformly distributed.

 

When fine grain continuous cast bars and tubes are specified, engineers, buyers, and producers are asking for and getting, the best cast structure available.

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Characteristics and Benefits 

• Enhanced Performance: The extreme fineness and uniformity of the structure permit more severe forming and machining operations, reducing tool wear.

• Improved Surface Finish: Fine grain cast bars and tubes are easier to micro-finish, providing longer life for bearings and gears.

• Structural Composition: Typically consists of a solid solution phase (𝛼-phase) along with other, more finely dispersed phases (such as 𝛿-eutectoid in CuSn12-C).

• Strength and Durability: Manganese bronze and Aluminum bronze often exhibit high tensile and yield strength, with aluminum bronze forming a protective surface layer, making it ideal for harsh, corrosive environments. 

 

Common Applications 

• Bearings and Gears: Fine-grain structures are essential for high-wear applications.

• Marine Equipment: Manganese bronze and aluminum bronze are used for propellers and pumps.

• Valve Components: Due to superior machinability and strength.