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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 106 psi

Elongation at Break

11 %

Fatigue Strength

230 MPa 33 x 103 psi

Poisson's Ratio

0.32

Shear Modulus

61 GPa 8.8 x 106 psi

Tensile Strength: Ultimate (UTS)

770 MPa 110 x 103 psi

Tensile Strength: Yield (Proof)

470 MPa 69 x 103 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/cm3 540 lb/ft3

Embodied Carbon

7.7 kg CO2/kg material

Embodied Energy

110 MJ/kg 47 x 103 BTU/lb

Embodied Water

250 L/kg 29 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

75 MJ/m3

Resilience: Unit (Modulus of Resilience)

700 kJ/m3

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 mm2/s

Thermal Shock Resistance

27 points

Alloy Composition

Nickel (Ni) 57.9 to 70.3
Copper (Cu) 27 to 33
Silicon (Si) 2.7 to 3.7
Iron (Fe) 0 to 3.5
Manganese (Mn) 0 to 1.5
Carbon (C) 0 to 0.3
Phosphorus (P) 0 to 0.030
Sulfur (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