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Grade CW6M (J30107) Cast Nickel

Grade CW6M nickel is a nickel alloy formulated for casting. Cited properties are appropriate for the heat treated (HT) condition. CW6M is the ASTM designation for this material. J30107 is the UNS number. The graph bars on the material properties cards below compare grade CW6M 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

29 %

Fatigue Strength

210 MPa 30 x 10³ psi

Poisson's Ratio

0.29

Shear Modulus

84 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

970 °C 1780 °F

Melting Completion (Liquidus)

1530 °C 2780 °F

Melting Onset (Solidus)

1470 °C 2680 °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

65 % relative

Density

8.8 g/cm³ 550 lb/ft³

Embodied Carbon

13 kg CO₂/kg material

Embodied Energy

170 MJ/kg 71 x 10³ BTU/lb

Embodied Water

300 L/kg 35 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

140 MJ/m³

Resilience: Unit (Modulus of Resilience)

220 kJ/m³

Stiffness to Weight: Axial

14 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		54.9 to 66
Chromium (Cr)Cr		17 to 20
Molybdenum (Mo)Mo		17 to 20
Iron (Fe)Fe		0 to 3.0
Manganese (Mn)Mn		0 to 1.0
Silicon (Si)Si		0 to 1.0
Carbon (C)C		0 to 0.070
Phosphorus (P)P		0 to 0.040
Sulfur (S)S		0 to 0.030