EN 2.4680 (G-NiCr50Nb) Casting Alloy
EN 2.4680 cast nickel is a nickel alloy formulated for casting. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. 2.4680 is the EN numeric designation for this material. G-NiCr50Nb is the EN chemical designation.
It has a moderately high heat capacity among the cast nickels in the database.
The graph bars on the material properties cards below compare EN 2.4680 cast 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
9.1 %
Fatigue Strength
120 MPa 18 x 103 psi
Poisson's Ratio
0.26
Shear Modulus
84 GPa 12 x 106 psi
Tensile Strength: Ultimate (UTS)
600 MPa 88 x 103 psi
Tensile Strength: Yield (Proof)
260 MPa 38 x 103 psi
Thermal Properties
Latent Heat of Fusion
350 J/g
Maximum Temperature: Mechanical
1050 °C 1920 °F
Melting Completion (Liquidus)
1360 °C 2490 °F
Melting Onset (Solidus)
1320 °C 2400 °F
Specific Heat Capacity
480 J/kg-K 0.12 BTU/lb-°F
Thermal Conductivity
14 W/m-K 8.2 BTU/h-ft-°F
Thermal Expansion
15 µm/m-K
Otherwise Unclassified Properties
Base Metal Price
60 % relative
Density
8.0 g/cm3 500 lb/ft3
Embodied Carbon
9.1 kg CO2/kg material
Embodied Energy
130 MJ/kg 57 x 103 BTU/lb
Embodied Water
350 L/kg 42 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
45 MJ/m3
Resilience: Unit (Modulus of Resilience)
160 kJ/m3
Stiffness to Weight: Axial
15 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
21 points
Strength to Weight: Bending
20 points
Thermal Diffusivity
3.7 mm2/s
Thermal Shock Resistance
14 points
Alloy Composition
| Cr | 48 to 52 | |
| Ni | 42.9 to 51 | |
| Nb | 1.0 to 1.8 | |
| Si | 0 to 1.0 | |
| Fe | 0 to 1.0 | |
| Mn | 0 to 0.5 | |
| Mo | 0 to 0.5 | |
| N | 0 to 0.16 | |
| C | 0 to 0.1 | |
| P | 0 to 0.020 | |
| S | 0 to 0.020 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10295: Heat Resistant Steel Castings
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998