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EN CC480K (CuSn10-C) Tin Bronze

CC480K bronze is a bronze formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. CC480K is the EN numeric designation for this material. CuSn10-C is the EN chemical designation.

It has a moderately high base cost and a moderately high embodied energy among cast bronzes.

The graph bars on the material properties cards below compare CC480K bronze to: cast bronzes (top), all copper alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Brinell Hardness

88

Elastic (Young's, Tensile) Modulus

110 GPa 16 x 106 psi

Elongation at Break

13 %

Poisson's Ratio

0.34

Shear Modulus

41 GPa 5.9 x 106 psi

Tensile Strength: Ultimate (UTS)

300 MPa 44 x 103 psi

Tensile Strength: Yield (Proof)

180 MPa 26 x 103 psi

Thermal Properties

Latent Heat of Fusion

190 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

1010 °C 1840 °F

Melting Onset (Solidus)

900 °C 1650 °F

Specific Heat Capacity

370 J/kg-K 0.088 BTU/lb-°F

Thermal Conductivity

63 W/m-K 37 BTU/h-ft-°F

Thermal Expansion

18 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

11 % IACS

Electrical Conductivity: Equal Weight (Specific)

11 % IACS

Otherwise Unclassified Properties

Base Metal Price

35 % relative

Density

8.8 g/cm3 550 lb/ft3

Embodied Carbon

3.7 kg CO2/kg material

Embodied Energy

59 MJ/kg 26 x 103 BTU/lb

Embodied Water

390 L/kg 47 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

35 MJ/m3

Resilience: Unit (Modulus of Resilience)

140 kJ/m3

Stiffness to Weight: Axial

6.9 points

Stiffness to Weight: Bending

18 points

Strength to Weight: Axial

9.6 points

Strength to Weight: Bending

11 points

Thermal Diffusivity

20 mm2/s

Thermal Shock Resistance

11 points

Alloy Composition

Among cast copper alloys, the composition of CC480K bronze is notable for containing a comparatively high amount of tin (Sn) and including manganese (Mn). Tin is used to improve strength, bearing properties, and corrosion resistance against certain types of media. It also places certain constraints on cast part design, so as to avoid porosity problems. Manganese is used to improve strength without a proportional reduction in ductility.

Copper (Cu) 86 to 90
Tin (Sn) 9.0 to 11
Nickel (Ni) 0 to 2.0
Lead (Pb) 0 to 1.0
Zinc (Zn) 0 to 0.5
Phosphorus (P) 0 to 0.2
Iron (Fe) 0 to 0.2
Antimony (Sb) 0 to 0.2
Manganese (Mn) 0 to 0.1
Sulfur (S) 0 to 0.050
Silicon (Si) 0 to 0.020
Aluminum (Al) 0 to 0.010

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

EN 1982: Copper and copper alloys - Ingots and castings