# EN 2.4642 (NiCr29Fe) Nickel Alloy

EN 2.4642 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 2.4642 is the EN numeric designation for this material. NiCr29Fe is the EN chemical designation.

It has a moderately high heat capacity among the wrought nickels in the database.

The graph bars on the material properties cards below compare EN 2.4642 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

200 *GPa* 29 *x 10 ^{6} psi*

Elongation at Break

34 *%*

Fatigue Strength

200 *MPa* 28 *x 10 ^{3} psi*

Poisson's Ratio

0.28

Shear Modulus

78 *GPa* 11 *x 10 ^{6} psi*

Shear Strength

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

Tensile Strength: Ultimate (UTS)

670 *MPa* 98 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

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

## Thermal Properties

Latent Heat of Fusion

320 *J/g*

Maximum Temperature: Mechanical

1010 *°C* 1860 *°F*

Melting Completion (Liquidus)

1360 *°C* 2490 *°F*

Melting Onset (Solidus)

1320 *°C* 2400 *°F*

Specific Heat Capacity

470 *J/kg-K* 0.11 *BTU/lb-°F*

Thermal Conductivity

12 *W/m-K* 6.9 *BTU/h-ft-°F*

Thermal Expansion

14 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

1.5 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

1.6 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

50 *% relative*

Density

8.3 *g/cm ^{3}* 520

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

120 *MJ/kg* 50 *x 10 ^{3} BTU/lb*

Embodied Water

290 *L/kg* 34 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

180 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

180 *kJ/m ^{3}*

Stiffness to Weight: Axial

13 *points*

Stiffness to Weight: Bending

24 *points*

Strength to Weight: Axial

23 *points*

Strength to Weight: Bending

21 *points*

Thermal Diffusivity

3.1 *mm ^{2}/s*

Thermal Shock Resistance

18 *points*

## Alloy Composition

Ni | 55.9 to 66 | |

Cr | 27 to 31 | |

Fe | 7.0 to 11 | |

Mn | 0 to 0.5 | |

Si | 0 to 0.5 | |

Al | 0 to 0.5 | |

Cu | 0 to 0.5 | |

C | 0 to 0.050 | |

P | 0 to 0.020 | |

S | 0 to 0.015 |

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

## Followup Questions

## Similar Alloys

## Further Reading

EN 10302: Creep resisting steels, nickel and cobalt alloys

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

Nickel Alloys, Ulrich Heubner (editor), 1998