# Heat Treated (HT) C82400 Copper

HT C82400 copper is C82400 copper in the heat treated (HT) condition. The graph bars on the material properties cards below compare HT C82400 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* 17 *x 10 ^{6} psi*

Elongation at Break

1.0 *%*

Poisson's Ratio

0.33

Rockwell C Hardness

38

Shear Modulus

45 *GPa* 6.5 *x 10 ^{6} psi*

Tensile Strength: Ultimate (UTS)

1030 *MPa* 150 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

970 *MPa* 140 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

230 *J/g*

Maximum Temperature: Mechanical

270 *°C* 520 *°F*

Melting Completion (Liquidus)

1000 *°C* 1820 *°F*

Melting Onset (Solidus)

900 *°C* 1650 *°F*

Specific Heat Capacity

380 *J/kg-K* 0.092 *BTU/lb-°F*

Thermal Conductivity

130 *W/m-K* 77 *BTU/h-ft-°F*

Thermal Expansion

17 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

25 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

26 *% IACS*

## Otherwise Unclassified Properties

Density

8.8 *g/cm ^{3}* 550

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

140 *MJ/kg* 60 *x 10 ^{3} BTU/lb*

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

10 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

3870 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.6 *points*

Stiffness to Weight: Bending

19 *points*

Strength to Weight: Axial

33 *points*

Strength to Weight: Bending

26 *points*

Thermal Diffusivity

39 *mm ^{2}/s*

Thermal Shock Resistance

36 *points*

## Alloy Composition

Cu | 96 to 98.2 | |

Be | 1.6 to 1.9 | |

Co | 0.2 to 0.65 | |

Ni | 0 to 0.2 | |

Fe | 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