# Grade M30H (J24030) Cast Nickel

Grade M30H nickel is a nickel alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. M30H is the ASTM designation for this material. J24030 is the UNS number.

It has the highest tensile strength among cast nickels. In addition, it has the lowest melting temperature and a moderately low base cost.

The graph bars on the material properties cards below compare grade M30H nickel to: cast 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

160 *GPa* 23 *x 10 ^{6} psi*

Elongation at Break

11 *%*

Fatigue Strength

230 *MPa* 33 *x 10 ^{3} psi*

Poisson's Ratio

0.32

Shear Modulus

61 *GPa* 8.8 *x 10 ^{6} psi*

Tensile Strength: Ultimate (UTS)

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

Tensile Strength: Yield (Proof)

470 *MPa* 69 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

320 *J/g*

Maximum Temperature: Mechanical

900 *°C* 1650 *°F*

Melting Completion (Liquidus)

1250 *°C* 2270 *°F*

Melting Onset (Solidus)

1200 *°C* 2200 *°F*

Specific Heat Capacity

440 *J/kg-K* 0.11 *BTU/lb-°F*

Thermal Conductivity

22 *W/m-K* 13 *BTU/h-ft-°F*

Thermal Expansion

13 *µm/m-K*

## Electrical Properties

Electrical Conductivity: Equal Volume

3.3 *% IACS*

Electrical Conductivity: Equal Weight (Specific)

3.4 *% IACS*

## Otherwise Unclassified Properties

Base Metal Price

50 *% relative*

Density

8.6 *g/cm ^{3}* 540

*lb/ft*

^{3}Embodied Carbon

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

Embodied Energy

110 *MJ/kg* 47 *x 10 ^{3} BTU/lb*

Embodied Water

250 *L/kg* 29 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

75 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

700 *kJ/m ^{3}*

Stiffness to Weight: Axial

10 *points*

Stiffness to Weight: Bending

21 *points*

Strength to Weight: Axial

25 *points*

Strength to Weight: Bending

22 *points*

Thermal Diffusivity

5.7 *mm ^{2}/s*

Thermal Shock Resistance

27 *points*

## Alloy Composition

Ni | 57.9 to 70.3 | |

Cu | 27 to 33 | |

Si | 2.7 to 3.7 | |

Fe | 0 to 3.5 | |

Mn | 0 to 1.5 | |

C | 0 to 0.3 | |

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 A494: Standard Specification for Castings, Nickel and Nickel Alloy

Microstructure of Superalloys, Madeleine Durand-Charre, 1998

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

Nickel Alloys, Ulrich Heubner (editor), 1998

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015