# EN 2.4665 (NiCr22Fe18Mo) Nickel Alloy

EN 2.4665 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 2.4665 is the EN numeric designation for this material. NiCr22Fe18Mo is the EN chemical designation.

The graph bars on the material properties cards below compare EN 2.4665 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

34 *%*

Fatigue Strength

220 *MPa* 32 *x 10 ^{3} psi*

Poisson's Ratio

0.28

Shear Modulus

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

Shear Strength

520 *MPa* 76 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

790 *MPa* 110 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

300 *MPa* 44 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

320 *J/g*

Maximum Temperature: Mechanical

990 *°C* 1810 *°F*

Melting Completion (Liquidus)

1460 *°C* 2670 *°F*

Melting Onset (Solidus)

1410 *°C* 2570 *°F*

Specific Heat Capacity

450 *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

55 *% relative*

Density

8.4 *g/cm ^{3}* 530

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

130 *MJ/kg* 54 *x 10 ^{3} BTU/lb*

Embodied Water

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

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

210 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

220 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

23 *points*

Strength to Weight: Axial

26 *points*

Strength to Weight: Bending

22 *points*

Thermal Diffusivity

3.2 *mm ^{2}/s*

Thermal Shock Resistance

20 *points*

## Alloy Composition

Ni | 40.3 to 53.8 | |

Cr | 20.5 to 23 | |

Fe | 17 to 20 | |

Mo | 8.0 to 10 | |

Co | 0.5 to 2.5 | |

W | 0.2 to 1.0 | |

Mn | 0 to 1.0 | |

Si | 0 to 1.0 | |

Al | 0 to 0.5 | |

Cu | 0 to 0.5 | |

C | 0.050 to 0.15 | |

P | 0 to 0.020 | |

S | 0 to 0.015 | |

B | 0 to 0.010 |

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