# UNS N06255 Nickel Alloy

N06255 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. The graph bars on the material properties cards below compare N06255 nickel to: wrought nickels (top), all nickel 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

210 *GPa* 30 *x 10 ^{6} psi*

Elongation at Break

45 *%*

Fatigue Strength

210 *MPa* 31 *x 10 ^{3} psi*

Poisson's Ratio

0.28

Shear Modulus

81 *GPa* 12 *x 10 ^{6} psi*

Shear Strength

460 *MPa* 67 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

660 *MPa* 95 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

250 *MPa* 37 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

320 *J/g*

Maximum Temperature: Mechanical

1000 *°C* 1820 *°F*

Melting Completion (Liquidus)

1470 *°C* 2670 *°F*

Melting Onset (Solidus)

1420 *°C* 2580 *°F*

Specific Heat Capacity

450 *J/kg-K* 0.11 *BTU/lb-°F*

Thermal Expansion

13 *µm/m-K*

## Otherwise Unclassified Properties

Base Metal Price

55 *% relative*

Density

8.5 *g/cm ^{3}* 530

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

130 *MJ/kg* 55 *x 10 ^{3} BTU/lb*

Embodied Water

270 *L/kg* 32 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

230 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

150 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

23 *points*

Strength to Weight: Axial

22 *points*

Strength to Weight: Bending

20 *points*

Thermal Shock Resistance

17 *points*

## Alloy Composition

Ni | 47 to 52 | |

Cr | 23 to 26 | |

Fe | 6.0 to 24 | |

Mo | 6.0 to 9.0 | |

W | 0 to 3.0 | |

Cu | 0 to 1.2 | |

Mn | 0 to 1.0 | |

Si | 0 to 1.0 | |

Ti | 0 to 0.69 | |

C | 0 to 0.030 | |

P | 0 to 0.030 | |

S | 0 to 0.030 |

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

## Followup Questions

## Similar Alloys

## Further Reading

ASTM B622: Standard Specification for Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube

Microstructure of Superalloys, Madeleine Durand-Charre, 1998

Machining of Stainless Steels and Super Alloys: Traditional and Nontraditional Techniques, Helmi A. Youssef, 2016

Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971

Nickel Alloys, Ulrich Heubner (editor), 1998