EN 2.4952 (NiCr20TiAl) Nickel-Chromium Alloy
EN 2.4952 nickel is a nickel alloy formulated for primary forming into wrought products. Cited properties are appropriate for the aged (precipitation hardened) condition. 2.4952 is the EN numeric designation for this material. NiCr20TiAl is the EN chemical designation.
It has a moderately high heat capacity among wrought nickels. In addition, it has a moderately high tensile strength and a moderately low ductility.
The graph bars on the material properties cards below compare EN 2.4952 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
190 GPa 28 x 106 psi
Elongation at Break
17 %
Fatigue Strength
370 MPa 53 x 103 psi
Impact Strength: V-Notched Charpy
22 J 17 ft-lb
Poisson's Ratio
0.29
Reduction in Area
14 %
Shear Modulus
74 GPa 11 x 106 psi
Shear Strength
700 MPa 100 x 103 psi
Tensile Strength: Ultimate (UTS)
1150 MPa 170 x 103 psi
Tensile Strength: Yield (Proof)
670 MPa 97 x 103 psi
Thermal Properties
Latent Heat of Fusion
330 J/g
Maximum Temperature: Mechanical
980 °C 1790 °F
Melting Completion (Liquidus)
1350 °C 2470 °F
Melting Onset (Solidus)
1300 °C 2380 °F
Specific Heat Capacity
470 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
12 W/m-K 7.1 BTU/h-ft-°F
Thermal Expansion
13 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
1.4 % IACS
Electrical Conductivity: Equal Weight (Specific)
1.5 % IACS
Otherwise Unclassified Properties
Base Metal Price
55 % relative
Density
8.3 g/cm3 520 lb/ft3
Embodied Carbon
9.8 kg CO2/kg material
Embodied Energy
140 MJ/kg 60 x 103 BTU/lb
Embodied Water
290 L/kg 35 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
170 MJ/m3
Resilience: Unit (Modulus of Resilience)
1180 kJ/m3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
38 points
Strength to Weight: Bending
29 points
Thermal Diffusivity
3.1 mm2/s
Thermal Shock Resistance
33 points
Alloy Composition
| Ni | 65 to 79.2 | |
| Cr | 18 to 21 | |
| Ti | 1.8 to 2.7 | |
| Al | 1.0 to 1.8 | |
| Fe | 0 to 1.5 | |
| Mn | 0 to 1.0 | |
| Si | 0 to 1.0 | |
| Co | 0 to 1.0 | |
| Cu | 0 to 0.2 | |
| C | 0.040 to 0.1 | |
| P | 0 to 0.020 | |
| S | 0 to 0.015 | |
| B | 0 to 0.0080 |
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
EN 10269: Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
Engineering Properties of Nickel and Nickel Alloys, John L. Everhart, 1971
Nickel Alloys, Ulrich Heubner (editor), 1998