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Grade CW12MW (J30002) Cast Nickel

Grade CW12MW nickel is a nickel alloy formulated for casting. Cited properties are appropriate for the heat treated (HT) condition. CW12MW is the ASTM designation for this material. J30002 is the UNS number.

It has a moderately high melting temperature and a moderately low heat capacity among cast nickels.

The graph bars on the material properties cards below compare grade CW12MW 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

220 GPa 32 x 106 psi

Elongation at Break

4.6 %

Fatigue Strength

130 MPa 18 x 103 psi

Poisson's Ratio

0.29

Shear Modulus

85 GPa 12 x 106 psi

Tensile Strength: Ultimate (UTS)

560 MPa 82 x 103 psi

Tensile Strength: Yield (Proof)

310 MPa 45 x 103 psi

Thermal Properties

Latent Heat of Fusion

320 J/g

Maximum Temperature: Mechanical

960 °C 1770 °F

Melting Completion (Liquidus)

1610 °C 2930 °F

Melting Onset (Solidus)

1560 °C 2830 °F

Specific Heat Capacity

410 J/kg-K 0.1 BTU/lb-°F

Thermal Expansion

12 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

70 % relative

Density

9.1 g/cm3 570 lb/ft3

Embodied Carbon

13 kg CO2/kg material

Embodied Energy

180 MJ/kg 77 x 103 BTU/lb

Embodied Water

280 L/kg 33 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

22 MJ/m3

Resilience: Unit (Modulus of Resilience)

220 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

22 points

Strength to Weight: Axial

17 points

Strength to Weight: Bending

17 points

Thermal Shock Resistance

16 points

Alloy Composition

Nickel (Ni) 49.2 to 60.1
Molybdenum (Mo) 16 to 18
Chromium (Cr) 15.5 to 17.5
Iron (Fe) 4.5 to 7.5
Tungsten (W) 3.8 to 5.3
Manganese (Mn) 0 to 1.0
Silicon (Si) 0 to 1.0
Vanadium (V) 0.2 to 0.4
Carbon (C) 0 to 0.12
Phosphorus (P) 0 to 0.040
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