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
| 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