# Half-Hard (H02) C70600 Copper-Nickel

H02 C70600 copper-nickel is C70600 copper-nickel in the H02 (half hard) temper. The graph bars on the material properties cards below compare H02 C70600 copper-nickel 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

120 *GPa* 18 *x 10 ^{6} psi*

Elongation at Break

8.0 *%*

Poisson's Ratio

0.34

Rockwell B Hardness

74

Rockwell F Hardness

100

Rockwell Superficial 30T Hardness

67

Shear Modulus

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

Shear Strength

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

Tensile Strength: Ultimate (UTS)

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

Tensile Strength: Yield (Proof)

63 *MPa* 9.1 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

220 *J/g*

Maximum Temperature: Mechanical

220 *°C* 430 *°F*

Melting Completion (Liquidus)

1150 *°C* 2100 *°F*

Melting Onset (Solidus)

1100 *°C* 2010 *°F*

Specific Heat Capacity

390 *J/kg-K* 0.094 *BTU/lb-°F*

Thermal Conductivity

44 *W/m-K* 26 *BTU/h-ft-°F*

Thermal Expansion

17 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

9.8 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

9.9 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

33 *% relative*

Calomel Potential

-280 *mV*

Density

8.9 *g/cm ^{3}* 560

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

51 *MJ/kg* 22 *x 10 ^{3} BTU/lb*

Embodied Water

300 *L/kg* 36 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

26 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

16 *kJ/m ^{3}*

Stiffness to Weight: Axial

7.7 *points*

Stiffness to Weight: Bending

19 *points*

Strength to Weight: Axial

14 *points*

Strength to Weight: Bending

15 *points*

Thermal Diffusivity

13 *mm ^{2}/s*

Thermal Shock Resistance

15 *points*

## Alloy Composition

Cu | 84.7 to 90 | |

Ni | 9.0 to 11 | |

Fe | 1.0 to 1.8 | |

Mn | 0 to 1.0 | |

Zn | 0 to 1.0 | |

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

ASTM B122: Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar

Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993