EN 2.4633 (NiCr25FeAlY) Nickel Alloy
EN 2.4633 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 2.4633 is the EN numeric designation for this material. NiCr25FeAlY is the EN chemical designation.
It has a moderately high heat capacity among the wrought nickels in the database.
The graph bars on the material properties cards below compare EN 2.4633 nickel to: wrought 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
200 GPa 28 x 106 psi
Elongation at Break
34 %
Fatigue Strength
230 MPa 33 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
76 GPa 11 x 106 psi
Shear Strength
510 MPa 74 x 103 psi
Tensile Strength: Ultimate (UTS)
760 MPa 110 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
1000 °C 1830 °F
Melting Completion (Liquidus)
1350 °C 2460 °F
Melting Onset (Solidus)
1300 °C 2380 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
11 W/m-K 6.5 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.6 % IACS
Otherwise Unclassified Properties
Base Metal Price
50 % relative
Density
8.2 g/cm3 510 lb/ft3
Embodied Carbon
8.4 kg CO2/kg material
Embodied Energy
120 MJ/kg 52 x 103 BTU/lb
Embodied Water
290 L/kg 35 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
210 MJ/m3
Resilience: Unit (Modulus of Resilience)
240 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
26 points
Strength to Weight: Bending
23 points
Thermal Diffusivity
2.9 mm2/s
Thermal Shock Resistance
22 points
Alloy Composition
| Ni | 58.8 to 65.9 | |
| Cr | 24 to 26 | |
| Fe | 8.0 to 11 | |
| Al | 1.8 to 2.4 | |
| Mn | 0 to 0.5 | |
| Si | 0 to 0.5 | |
| C | 0.15 to 0.25 | |
| Ti | 0.1 to 0.2 | |
| Y | 0.050 to 0.12 | |
| Zr | 0.010 to 0.1 | |
| Cu | 0 to 0.1 | |
| P | 0 to 0.020 | |
| S | 0 to 0.010 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 10302: Creep resisting steels, nickel and cobalt alloys
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998