# Heat Treated (HT) C82800 Copper

HT C82800 copper is C82800 copper in the heat treated (HT) condition. The graph bars on the material properties cards below compare HT C82800 copper to: cast 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* 18 *x 10 ^{6} psi*

Elongation at Break

1.0 *%*

Poisson's Ratio

0.33

Rockwell B Hardness

45

Shear Modulus

46 *GPa* 6.7 *x 10 ^{6} psi*

Tensile Strength: Ultimate (UTS)

1140 *MPa* 170 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

1000 *MPa* 150 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

240 *J/g*

Maximum Temperature: Mechanical

310 *°C* 580 *°F*

Melting Completion (Liquidus)

930 *°C* 1710 *°F*

Melting Onset (Solidus)

890 *°C* 1630 *°F*

Specific Heat Capacity

390 *J/kg-K* 0.092 *BTU/lb-°F*

Thermal Conductivity

120 *W/m-K* 71 *BTU/h-ft-°F*

Thermal Expansion

17 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

18 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

19 *% IACS*

## Otherwise Unclassified Properties

Density

8.7 *g/cm ^{3}* 540

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

190 *MJ/kg* 82 *x 10 ^{3} BTU/lb*

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

11 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

4080 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.8 *points*

Stiffness to Weight: Bending

19 *points*

Strength to Weight: Axial

36 *points*

Strength to Weight: Bending

28 *points*

Thermal Diffusivity

36 *mm ^{2}/s*

Thermal Shock Resistance

39 *points*

## Alloy Composition

Cu | 94.6 to 97.2 | |

Be | 2.5 to 2.9 | |

Co | 0.15 to 0.7 | |

Si | 0.2 to 0.35 | |

Fe | 0 to 0.25 | |

Ni | 0 to 0.2 | |

Al | 0 to 0.15 | |

Ti | 0 to 0.12 | |

Cr | 0 to 0.1 | |

Sn | 0 to 0.1 | |

Zn | 0 to 0.1 | |

Pb | 0 to 0.020 | |

res. | 0 to 0.5 |

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

## Followup Questions

## Further Reading

ASM Specialty Handbook: Copper and Copper Alloys, J. R. Davis (editor), 2001