# Half-Hard (H02) C73100 Nickel Silver

H02 C73100 nickel silver is C73100 nickel silver in the H02 (half hard) temper. It has the lowest strength and highest ductility compared to the other variants of C73100 nickel silver. The graph bars on the material properties cards below compare H02 C73100 nickel silver to: wrought copper-nickels (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

110 *GPa* 16 *x 10 ^{6} psi*

Elongation at Break

8.0 *%*

Poisson's Ratio

0.32

Shear Modulus

43 *GPa* 6.2 *x 10 ^{6} psi*

Shear Strength

260 *MPa* 38 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

450 *MPa* 65 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

420 *MPa* 62 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

190 *J/g*

Maximum Temperature: Mechanical

170 *°C* 330 *°F*

Melting Completion (Liquidus)

1030 *°C* 1880 *°F*

Melting Onset (Solidus)

1000 *°C* 1830 *°F*

Specific Heat Capacity

390 *J/kg-K* 0.093 *BTU/lb-°F*

Thermal Conductivity

35 *W/m-K* 20 *BTU/h-ft-°F*

Thermal Expansion

19 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

7.5 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

8.0 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

28 *% relative*

Density

8.4 *g/cm ^{3}* 530

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

49 *MJ/kg* 21 *x 10 ^{3} BTU/lb*

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

35 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

790 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.5 *points*

Stiffness to Weight: Bending

19 *points*

Strength to Weight: Axial

15 *points*

Strength to Weight: Bending

15 *points*

Thermal Diffusivity

11 *mm ^{2}/s*

Thermal Shock Resistance

15 *points*

## Alloy Composition

Cu | 70.8 to 78 | |

Zn | 18 to 22 | |

Ni | 4.0 to 6.0 | |

Mn | 0 to 0.5 | |

Fe | 0 to 0.1 | |

Sn | 0 to 0.1 | |

Pb | 0 to 0.050 | |

res. | 0 to 0.5 |

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

## Followup Questions

## Further Reading

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015