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Grade CW2M (J26455) Cast Nickel

Grade CW2M nickel is a nickel alloy formulated for casting. Cited properties are appropriate for the heat treated (HT) condition. CW2M is the ASTM designation for this material. J26455 is the UNS number. The graph bars on the material properties cards below compare grade CW2M 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

210 GPa 31 x 10⁶ psi

Elongation at Break

23 %

Fatigue Strength

190 MPa 27 x 10³ psi

Poisson's Ratio

0.29

Shear Modulus

83 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

330 J/g

Maximum Temperature: Mechanical

960 °C 1770 °F

Melting Completion (Liquidus)

1520 °C 2760 °F

Melting Onset (Solidus)

1460 °C 2670 °F

Specific Heat Capacity

430 J/kg-K 0.1 BTU/lb-°F

Thermal Expansion

12 µm/m-K

Otherwise Unclassified Properties

Base Metal Price

70 % relative

Density

8.8 g/cm³ 550 lb/ft³

Embodied Carbon

12 kg CO₂/kg material

Embodied Energy

170 MJ/kg 71 x 10³ BTU/lb

Embodied Water

290 L/kg 35 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

110 MJ/m³

Resilience: Unit (Modulus of Resilience)

220 kJ/m³

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

23 points

Strength to Weight: Axial

18 points

Strength to Weight: Bending

17 points

Thermal Shock Resistance

16 points

Alloy Composition

Nickel (Ni)Ni		60.1 to 70
Chromium (Cr)Cr		15 to 17.5
Molybdenum (Mo)Mo		15 to 17.5
Iron (Fe)Fe		0 to 2.0
Manganese (Mn)Mn		0 to 1.0
Tungsten (W)W		0 to 1.0
Silicon (Si)Si		0 to 0.8
Phosphorus (P)P		0 to 0.030
Sulfur (S)S		0 to 0.030
Carbon (C)C		0 to 0.020