# Spring-Tempered (H08) C15100 Copper

H08 C15100 copper is C15100 copper in the H08 (spring) temper. It has the highest strength and lowest ductility compared to the other variants of C15100 copper. The graph bars on the material properties cards below compare H08 C15100 copper to: wrought coppers (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

Elastic (Young's, Tensile) Modulus

120 *GPa* 17 *x 10 ^{6} psi*

Elongation at Break

2.0 *%*

Poisson's Ratio

0.34

Rockwell B Hardness

64

Rockwell Superficial 30T Hardness

65

Shear Modulus

43 *GPa* 6.3 *x 10 ^{6} psi*

Shear Strength

270 *MPa* 39 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

470 *MPa* 68 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

460 *MPa* 66 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

210 *J/g*

Maximum Temperature: Mechanical

200 *°C* 390 *°F*

Melting Completion (Liquidus)

1100 *°C* 2010 *°F*

Melting Onset (Solidus)

1030 *°C* 1890 *°F*

Specific Heat Capacity

390 *J/kg-K* 0.092 *BTU/lb-°F*

Thermal Conductivity

360 *W/m-K* 210 *BTU/h-ft-°F*

Thermal Expansion

17 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

95 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

95 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

31 *% relative*

Density

9.0 *g/cm ^{3}* 560

*lb/ft*

^{3}Embodied Carbon

2.7 *kg CO _{2}/kg material*

Embodied Energy

43 *MJ/kg* 18 *x 10 ^{3} BTU/lb*

Embodied Water

310 *L/kg* 37 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

9.3 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

890 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.2 *points*

Stiffness to Weight: Bending

18 *points*

Strength to Weight: Axial

15 *points*

Strength to Weight: Bending

15 *points*

Thermal Diffusivity

100 *mm ^{2}/s*

Thermal Shock Resistance

17 *points*

## Alloy Composition

Cu | 99.8 to 99.95 | |

Zr | 0.050 to 0.15 | |

res. | 0 to 0.1 |

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

## Followup Questions

## Further Reading

Copper Alloys: Preparation, Properties and Applications, Michael Naboka and Jennifer Giordano (editors), 2013