# EN 2.4889 (NiCr28FeSiCe) Nickel Alloy

EN 2.4889 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 2.4889 is the EN numeric designation for this material. NiCr28FeSiCe is the EN chemical designation.

It has a moderately low embodied energy among wrought nickels. In addition, it has a moderately high heat capacity and a moderately low base cost.

The graph bars on the material properties cards below compare EN 2.4889 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

Brinell Hardness

190

Elastic (Young's, Tensile) Modulus

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

Elongation at Break

39 *%*

Fatigue Strength

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

Poisson's Ratio

0.28

Shear Modulus

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

Shear Strength

490 *MPa* 71 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

720 *MPa* 100 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

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

## Thermal Properties

Latent Heat of Fusion

350 *J/g*

Maximum Temperature: Mechanical

1200 *°C* 2190 *°F*

Melting Completion (Liquidus)

1350 *°C* 2460 *°F*

Melting Onset (Solidus)

1300 *°C* 2370 *°F*

Specific Heat Capacity

480 *J/kg-K* 0.12 *BTU/lb-°F*

Thermal Conductivity

13 *W/m-K* 7.5 *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

42 *% relative*

Density

8.0 *g/cm ^{3}* 500

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

98 *MJ/kg* 42 *x 10 ^{3} BTU/lb*

Embodied Water

250 *L/kg* 30 *gal/lb*

## Common Calculations

PREN (Pitting Resistance)

28

Resilience: Ultimate (Unit Rupture Work)

220 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

180 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

24 *points*

Strength to Weight: Axial

25 *points*

Strength to Weight: Bending

22 *points*

Thermal Diffusivity

3.4 *mm ^{2}/s*

Thermal Shock Resistance

19 *points*

## Alloy Composition

Ni | 45 to 50.4 | |

Cr | 26 to 29 | |

Fe | 21 to 25 | |

Si | 2.5 to 3.0 | |

Mn | 0 to 1.0 | |

Cu | 0 to 0.3 | |

C | 0.050 to 0.12 | |

Ce | 0.030 to 0.090 | |

P | 0 to 0.020 | |

S | 0 to 0.010 |

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

## Followup Questions

## Similar Alloys

## Further Reading

EN 10095: Heat resisting steels and nickel alloys

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

Nickel Alloys, Ulrich Heubner (editor), 1998